Skema Rangkaian Regulator Rectifier atau Kiprok untuk Sepeda Motor

Para penggemar sepeda motor tentu diantara anda ada yang dibuat pusing dengan regulator rectifier sepeda motor atau yang suka disebut kiprok yang sering mengalami kerusakan terutama lampunya yang sering putus akibat kerusakan kiprok dan tidak stabilnya tegangan yang dihasilkan dari rangkaian regulatornya. Postingan ini juga sekaligus sebagai balasan untuk ananda Wahyu Handono Riyadh yang menginginkan skema rangkaian regulator rectifier alias kiprok. Beliau mempunyai pengalaman pembelian regulator rectifier berkali kali tapi rusak terus meskipun katanya sudah membeli yang asli. Rangkaian regulator rectifier biasanya hanya terdiri dari dioda penyearah yang berfungsi untuk mengubah arus ac menjadi dc dan sebagai pengisi accu dan untuk menstabilkannya biasanya  memakai dioda zener sebagai suplai tegangan ke lampu, klakson dan lainnya. 
Oke langsung aja yah ke TKP seperti apa rangkaian yang akan dikemukakan. Rangkaian Kiprok ini saya ambil dari blognya bang ONIX .  Beliau adalah penggemar sepeda motor Vespa dan suka berkreasi.

Rangkaian ini cukup sederhana namun hasilnya saya kira tidak akan mengecewakan. Rangkaian kiprok ini menggunakan IC LM2576-15V sebagai regulator. Outputnya bisa menghasilkan 15Volt 3Ampere jadi sangat cocok untuk pengisian Accu, input IC ini bisa mencapai 60V jadi sangat aman apabila motor di gas sekencang apapun. Sebagai sumber tegangan diambil dari spull lampu besar seperti pada diagram dibawah ini:

Selamat mencoba dan semoga berhasil!

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Soft Start For Switching Power Supply

extremecircuits.net
Switching power supply whose output voltage is appreciably lower than its input voltage has an interesting property: the current drawn by it is smaller than its output current. However, the input power (UI) is, of course, greater than the output power. There is another aspect that needs to be watched: when the input voltage at switch-on is too low, the regulator will tend to draw the full current. When the supply cannot cope with this, it fails or the fuse blows. It is, therefore, advisable to disable the regulator at switch-on (via the on/off input). until the relevant capacitor has been charged. When the regulator then starts to draw current, the charging current has already dropped to a level which does not overload the voltage source.

Circuit diagram:

Soft Start Circuit For Switching Power Supply

The circuit in the diagram provides an output voltage of 5 V and is supplied by a 24 V source. The regulator need not be disabled until the capacitor is fully charged: when the potential across the capacitor has reached a level of half or more of the input voltage, all is well. This is why the zener diode in the diagram is rated at 15 V. Many regulators produced by National Semiconductor have an integral on/off switch, and this is used in the present circuit. The input is intended for TTL signals, and usually consists of a transistor whose base is accessible externally. This means that a higher switching voltage may be applied via a series resistor: the value of this in the present circuit is 22 kΩ. When the voltage across the capacitor reaches a level of about 17 V, transistor T1 comes on, whereupon the regulator is enabled.
Source: National Semiconductors

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Free Switch Mode Pre-Regulator

The botheration was that a voltage regulator had to bead the 18 volt capital ability accumulation voltage to 8 volts at 500ma to ability the CD player, crumbling 5 watts of ability and causing a lot of calefaction central the bunched unit. This ambit acts as an interference-free pre-regulator to abundantly abate the ability loss..

The achievement voltage of this ambit is artless by ability band fluctuations. Amount voltage aberration is alone abased on the on-resistance of Q2 and the amount of C2 (re: ripple). The achievement voltage can be set so that the ripple lulls are aloof aloft the

drop-out voltage of the beeline regulator at best amount for best activity conservation. The college amount you aces for C2, the added activity you can save and the added abiding the pre-regulator’s achievement voltage.

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Regulator 5A model Matahari

Skema Rangkaian Regulator 5Ampere ini mempunyai tegangan pengeluaran yang bervariasi dari mulai 3 Volt sampai 13.8 Volt yang di atur tegangannya oleh saklar rotari. Regulator ini sangat cocok untuk berbagai rangkaian, karena pengeluarannya sangat stabil dan tegangannya murni.

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Konverter 6 Volt ke 12 Volt

6V to 12VDC Converter Schematic
This inverter circuit can provide up to 800mA of 12V power from a 6V supply. For example, you could run 12V car accessories in a 6V (British?) car. The circuit is simple, about 75% efficient and quite useful. By changing just a few components, you can also modify it for different voltages.

Parts

Part	Total Qty.	Description	Substitutions
R1, R4	2	2.2K 1/4W Resistor
R2, R3	2	4.7K 1/4W Resistor
R5	1	1K 1/4W Resistor
R6	1	1.5K 1/4W Resistor
R7	1	33K 1/4W Resistor
R8	1	10K 1/4W Resistor
C1,C2	2	0.1uF Ceramic Disc Capacitor
C3	1	470uF 25V Electrolytic Capcitor
D1	1	1N914 Diode
D2	1	1N4004 Diode
D3	1	12V 400mW Zener Diode
Q1, Q2, Q4	3	BC547 NPN Transistor
Q3	1	BD679 NPN Transistor
L1	1	See Notes
MISC	1	Heatsink For Q3, Binding Posts (For Input/Output), Wire, Board

Notes
1. L1 is a custom inductor wound with about 80 turns of 0.5mm magnet wire around a toroidal core with a 40mm outside diameter.
2. Different values of D3 can be used to get different output voltages from about 0.6V to around 30V. Note that at higher voltages the circuit might not perform as well and may not produce as much current. You may also need to use a larger C3 for higher voltages and/or higher currents.
3. You can use a larger value for C3 to provide better filtering.
4. The circuit will require about 2A from the 6V supply to provide the full 800mA at 12V.

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Power Supplay 12 Volt Non Trafo

 This circuit will supply up to about 20ma at 12 volts. It uses capacitive reactance instead of resistance; and it doesn’t generate very much heat.The circuit draws about 30ma AC. Always use a fuse and/or a fusible resistor to be on the safe side. The values given are only a guide. There should be more than enough power available for timers, light operated switches, temperature controllers etc,
provided that you use an optical isolator as your circuit’s output device. (E.g. MOC 3010/3020) If a relay is unavoidable, use one with a mains voltage coil and switch the coil using the optical isolator.C1 should be of the ’suppressor type’; made to be connected directly across the incoming Mains Supply. They are generally covered with the logos of several different Safety Standards Authorities. If you need more current, use a larger value capacitor; or put two in parallel; but be careful of what you are doing to the Watts. The low voltage ‘AC’ is supplied by ZD1 and ZD2. The bridge rectifier can be any of the small ‘Round’, ‘In-line’, or ‘DIL’ types; or you could use four separate diodes. If you want to, you can replace R2 and ZD3 with a 78 Series regulator. The full sized ones will work; but if space is tight, there are some small 100ma versions available in TO 92 type cases. They look like a BC 547. It is also worth noting that many small circuits will work with an unregulated supply. You can, of course, alter any or all of the Zenner diodes in order to produce a different output voltage. As for the mains voltage, the suggestion regarding the 110v version is just that, a suggestion. I haven’t built it, so be prepared to experiment a little.

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UPS POWER SUPPLY CIRCUIT

This circuit can be adapted for other regulated and unregulated voltages by using different regulators and batteries. For a 15 Volt regulated supply use two 12 Volt batteries in series and a 7815 regulator. There is a lot of flexibility in this circuit.
TR1 has a primary matched to the local electrical supply which is 240 Volts in the UK. The secondary winding should be rated at least 12 Volts at 2 amp, but can be higher, for example 15 Volts. FS1 is a slow blow type and protects against short circuits on the output, or indeed a faulty cell in a rechargeable battery. LED 1 will light ONLY when the electricity supply is present, with a power failure the LED will go out and output voltage is maintained by the battery. The circuit below simulates a working circuit with mains power applied:
Between terminals VP1 and VP3 the nominal unregulated supply is available and a 5 Volt regulated supply between VP1 and VP2. Resistor R1 and D1 are the charging path for battery B1. D1 and D3 prevent LED1 being illuminated under power fail conditions. The battery is designed to be trickle charged, charging current defined as :
-(VP5 – 0.6 ) / R1
where VP5 is the unregulated DC power supply voltage. D2 must be included in the circuit, without D2 the battery would charge from the full supply voltage without current limit, which would cause damage and overheating of some rechargeable batteries. An electrical power outage is simulated below:

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Stabilised Power Supply with Current Limiting

A simple bench PSU capable of :-
Approx. 5v to 15v output at 1A
Current limited from about 500mA to 1A (adjustable)

Circuit Operation:
An error amplifier is formed from Tr1 and Tr2, wired as a differential amplifier (often called a long-tailed pair -- look at those collector leads). One input of this diff. amp is taken from the zener diode which provides a stable 4.7 volts, the other diff. amp input is a fraction of the output. Any difference between the two will cause the current through R3 to alter and so will alter the voltage across it and hence to the base of Tr3.

Tr3 and Tr4 are connected as a darlington pair, this produces a very high gain to aid stability of regulation. This darlington pair can be visualised as a single transistor connected in an 'emitter-follower' configuration, the emitter voltage will follow the base voltage (less the 1.2v required to forward bias the two base-emitter junctions), but with a much greater current capacity.
Current limiting is provided by Tr5 which will be forward biassed by a fraction of the voltage drop across the current sensing resistor, R5, set by Vr1. As the current through R5 increases so does the voltage dropped across it, this begins to bias Tr5 on and in so doing causes Tr3/Tr4 to be deprived of base current and so reduces the output voltage.

Tr4 needs a heatsink of at least 10 degrees C/Watt (10C / W) and R5 is expected to carry (1A * 4R) = 4 Watts, so it will need to be a 5W device or four 1R 1W devices in series, mount them on a peice of metal as they will get hot!
The transformer needs to be selected to suit your local mains voltage and provide between 15 v and 20 v out at 1A (thats 15 or 20VA, respectively).

As there is no current measurement built in to the unit, a useable scale could be marked around the potentiometer Vr1's knob such that a known current could be chosen in advance of connecting a load. To do this, connect an ammeter directly across the power supplie's output - this will instantly overload the supply and cause the current limiting to operate. Adjust Vr1 so that the ammeter displays 500mA and mark the knob's position. Repeat the procedure for 600mA, etc. ## DON'T keep the supply shorted for too long as Tr4 and R5 will soon get hot! ##

Bits List...
R1, R2 1k0
R3 2k2
R4, R7 470R
R5 4R 5W (see text)
R6 47R
Vr1 100R
Vr2 1k0
C1 6800uF 25v (4700uF will probably do)
C2 0u47
D1, D2, D3, D4 1N4001 (or a 1 amp bridge rectifier)
Z1 BZY88C 4V7
Tr1, Tr2, Tr3, Tr5 BC108 (or BC109)
Tr4 BD131
Transformer 110/240v to 15 or 20v, 1A

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12 Volt Dual Power Supply Circuit

Here is the standard dual power supply using the Positive and Negative Voltage regulator ICs. It can give +12 volt and – 12 volt DC with a common ground.This power supply is ideal to power amplifier circuits that require well regulated dual power supply. It can give 1 ampere current to the circuit.

14-0-14 volt 1 Ampere step down transformer is used to drop 230 volt AC to 14 volt DC which is then rectified using the standard full wave bridge rectifier comprising D1 through D4.Smoothing capacitors C1 and C2 remove the ripples from low volt AC.Two regulator ICs are used to generate + 12 volt and – 12 volt DC. IC1 is 7812 positive regulator giving +12 volt regulated output .

 

IC2 is 7912 negative regulator and its pins are slightly different from 7812. See the connection in the diagram. Regulated outputs from the regulator ICs are available from pin 3 which can be used to power the circuit. Capacitors C3 and C4 act as noise filters to give clean DC.

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Two Amp Power Supply

The Two Amp Power Supply circuit diagram.

This handy power supply has an output of 0v to 12v at 700mA with a transformer that is rated at 1-amp (such as M-2155) or 1.4amp for a transformer that is rated at 2-amp (such as M-2156). Your local electronics shop or model railway supply will have these or equivalent transformers. The mini pot mounted on the board has a scale to show the approximate output voltage and this can be replaced with a standard pot on the front of a case. You can also include an ammeter if you wish.

The completed POWER SUPPLY, showing the placement of the parts

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Rangkaian Konverter 12 Volt ke 5 Volt

Skema Rangkaian Konverter 12 Volt ke 5 Volt

Converter is a series of functions to change the voltage 12 to be 5 Volt. the core of this series is the zener diode. due to a fall in voltage Zener diode 12 will be 5.7 volt. voltage in 5.7 volt electrical currents strengthened by taransiator Q1

To get a different output voltage you can change the zener diode as needed. for example, if you need a converter from 12 to 9 volt change zener Diode eat 5.7 to 10 volt

components List:

• R1 = 560 ohm
• C1 = 1000uF/40V
• C2 = 10uF/25V
• C3 = 330nF
• Z1 = 5,7V
• Q1 = ECG184, NTE184

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ADAPTOR 12 VOLT 20 AMPERE

Gbr. Skema rangkaian adaptor 12 volt, 5 ampere

Now it should not have to wrestle again seek op-amp, transistor and other components to realize a massive circuit of regulators, because the circuit of this kind have been packed into a fixed voltage regulator IC. Currently, many components known as the 78XX series fixed positive voltage regulator and the 79XX series is a voltage regulator to remain negative.

Even the components are usually already equipped with a flow divider (current limiter) and also the constraint temperature (thermal shutdown). This component is only three pins, and by adding some components can only have a circuit of ration power ter-regulation with either.

For example, 7805 is a voltage regulator to get a 5 volt, 7812 voltage regulator 12 volt, and so on, for example, while the 79XX series is the 7905 and 7912 respectively are negative voltage regulators 5 and 12 volt.

RANGKAIAN ADAPTOR 12 VOLT

The adapter has a set of outputs (output) 12 volt which is teregulasi well. If the components that were installed in accordance with the scheme under the set of the circuit of this adapter safe burdened to 5 ampere, if you want this adapter is able to provide a greater flow you can add a power transistor (2N3055) and replace the bridge diode with diode which has a more ampere high. Exodus circuit of this adapter can be used to run the tape the car, the radio transmitter, CCTV cameras, and other electronics equipment.

List of components adapter 12 volt:

• D1-D4 = 6 A
• D5 = 1 A
• C1 = 4700u/50V
• C2 = 220u/25V
• C3 = 100u/25V
• R1 = 1k
• R2 = 0.2Ohm/5Watt
• F1 = Fuse (skring) 2 A
• F2 = Fuse (skring) 6 A
• IC1 = 7812
• TR1 = 2N3055
• T1 = Trafo 15Volt/5A

Scheme following a circuit of adapter has the ability to supply higher current (20 ampere is reached). For fans radio transmitter (radio station) following a circuit of adapter is suitable to use. Provide a good cooling on the power transistor (MJ 2955) because the transistor will be very hot when the adapter to provide a large flow.

Skema Rangkaian adaptor 12Volt/ 20 ampere

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Power supplay (Adapter) 12 Volt

12 volt dual voltage of adapter

• Transformator 18v-CT (min)
• Capasitor 35v
• Bridge Rectifier 2 Ampere /100 v
• c4, c5 Ceramic

12 VOLT 20 Ampere of adapter



Using a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 20 amps.

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Variable Adapter (3 , 4 ,5 ,9 ,12 ,16 ,20 to max 37 volt)

The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. Also, the LM117 is packaged in standard transistor packages which are easily mounted and handled.

In addition to higher performance than fixed regulators, the LM117 series offers full overload protection available only in IC's. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, no capacitors are needed unless the device is situated more than 6

inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM117 is useful in a wide variety of other applications. Since the regulator is “floating” and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, i.e., avoid short-circuiting the output.

Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment pin and output, the LM117 can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2V where most loads draw little current.

For applications requiring greater output current, see LM150 series (3A) and LM138 series (5A) data sheets. For the negative complement, see LM137 series data sheet.

Gamabr skema Rangkaian Adaptor Variable 1.2 - 37 Volt

to set the output you can use the formula below. or with a set 5k VR, the output 1.2 volt anad smallest maximal 25 volt

Features Adjustable Regulator LM117/LM317A/LM317

• Guaranteed 1% output voltage tolerance (LM317A)
• Guaranteed max. 0.01%/V line regulation (LM317A)
• Guaranteed max. 0.3% load regulation (LM117)
• Guaranteed 1.5A output current
• Adjustable output down to 1.2V
• Current limit constant with temperature
• Pa Product Enhancement tested
• 80 dB ripple rejection
• Output is short-circuit protected

Table LM117/LM317A/LM317

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Rangkaian Regulator menggunakan Op-Amp

Skema rangkaian regulator menggunakan OP-Amp

Regulator is a series of regulations or the voltage output from power so that a portion darinaik effects or voltage drop in net does not affect the voltage ration power to be so stable.

Regular circuit of regulators have been good if the ripple voltage is small, but there is a problem of stability. If the voltage PLN rise /down, then the output voltage is also will be rise /donw. regular circuit of regulators, if the current of the larger, the dc voltage output is also down. For some applications this voltage change will very disrupt.

Rangkaian Regulator menggunakan Op-Amp

Technical regulations that better is to use the Op-Amp for a drive-transistor Q. Dioda zener here do not give directly to the bait transistor Q, but as a reference voltage for the Op-Amp IC1. Feedback on the negative pin Op-amp is a snippet from the voltage regulator out, namely:

If the voltage V out exit Ascending, voltage V in (-) also Ascending until this voltage is the same as the reference voltage Vz. Likewise if the voltage V out decreases exit, for example because of supply current to the load increases, Op-amp will maintain stability in the V reference point z with the current IB to the transistor Q1 so that at any time in the Op-amp maintain stability:

Ignore the VBE voltage transistor Q1 and mensubsitusi formula, obtained by mathematical relationships

In the circuit of regulator Op-Amp of this output voltage can be adjusted with the set of R1 and R2.

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Rangkaian +5V Switching regulator

Rangkaian +5V Switching regulator used LM2575-5.0. You can make the stable voltage by using the 3 terminal regulator like LM317. However, because the output electric current and the inputted electric current are the same approximately, the difference between the input electric power (The input voltage x The input electric current) and the output power (The output voltage x The output current) is consumed as the
heat with the regulator. Because it is, the efficiency isn’t good. In case of the switching regulator, it inputs only the electric power which is necessary to output from the input by the switching operation. Because it is, there is little electric power to consume with the regulator and it is efficient.

Skema Rangkaian +5V Switching regulator

DC to DC step down voltage regulator. Wide input voltage 8Vdc to 40Vdc.

• LM2575-3.3 (3.3Vdc output)
• LM2575-5.0 (5Vdc output)
• LM2575-12 (12Vdc output)
• LM2575-15 (15Vdc output)
• LM2575-ADJ (1.23Vdc to 37Vdc output)

The switching regulator which introduces in this page is the step down type and is the one to get the output voltage which is lower than the input voltage. As for the regulator which uses this time, the output is 5-V fixation.
The switching regulator of the step up type can be made the voltage which is higher than the input voltage.


Kegunaan IC LM2575

The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

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Rangkaian Car Regulator Converter

Skema rangkaian car regulator converter

This is car regulator 12 VDC to 9 VDC converters side for audio, playstation,DVD,etc... The regulator designed for 12DC to 9DC converters that we bring to our design circuit . They are all effective in Switch Mode Power Supplies regulated output. We have developed a series of DC-DC power supply models ranging from 1 watt to 500 watts, which we incorporated into the new controller of DC converters. We are also developing new areas whenever necessary to meet customer requirements. We can provide some custom products that changes on the following products and fully custom DC-DC, new products, such as DC Battery Backup Power Supplies.

Note:
Assemble the circuit on a good quality PCB.
The Q1 ECG184 must be mounted on heat sinks.


list Componet

C1: 1000uf/16v
C2: 100uf/16v
C3: 330nf
R1: 560 ohm, Resistor 1 watt
Z1: 9.1 Volt, diode zener
Q1: EGC184.

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Dual Regulator Power Supplay +12Volt|-12Volt

Dual Regulator Power Supplay

This is of a dual regulated that provides +12V and -12V from the AC mains. A regulator like this is a very essential tool on the work bench of an electronic hobbyist.

Transformer T1 steps down the AC mains voltage and diodes D1, D2, D3 and D4 does the job of rectification. Capacitors C1 and C2 does of filtering.C3, C4, C7and C8 are decoupling capacitors. IC 7812 and 7912 are used for the purpose of voltage regulation in which the former is a positive 12V regulator and later is a negative 12V regulator. The output of 7812 will be +12V and that of 7912 will be -12V.

Skema rangkaian Dual Regulator Power Supplay

IC regulator 78xx

IC regulator 79xx

Note:

• Use Transformer 15-0-15 V, 1A secondary step-down transformer.
• Capacitor C1,C2,C5 and C6 must be rated 50V or more.

IC regulator 78xx (7812) Description

The LM78XX series of three terminal regulators is available with several fixed output voltages making them useful in a wide range of applications. One of these is local on card regulation, eliminating the distribution problems associated with single point regulation.

Maximum Ratings

• Input Voltage (VO = 5V, 12V and 15V) : 35V
• Operating Temperature Range (TA) : 0°C to +70°C
• Maximum Junction Temperature : 150°C
• Storage Temperature Range −65°C to +150°C
• Lead Temperature (Soldering, 10 sec.)

IC regulator 79xx (7912) Description

The LM79XX series of three-terminal negative regulators are available with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shutdown and safe operating area protection, making it essentially indestructible.


Maximum Ratings

• Input Voltage (VO = -5V, to 15V) : 35V
• Operating Temperature Range (TA) : 0°C to +70°C
• Maximum Junction Temperature : 150°C
• Storage Temperature Range −65°C to +150°C
• Lead Temperature (Soldering, 10 sec.)

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Adaptor 12 volt menggunakan 2n3055

Skema rangkaian adaptor 12 volt 2N3055

Rangkaian Adaptor 12 volt 2n3055

This adapter circuit can deliver up to 3A at 12V output voltage. The circuit can be employed on occasions when a current of more that 3A is demanded for regulator. IC regulators of such high current rating are pretty hard to find.

The transformer T1 steps down mains voltage, to 12rms & the rectifier bridge D1 rectifies it to produce a DC voltage. The C1 filters the rectifier output and produces a DC level. The series pass transistor Q1 (2N 3055) is biased by resistor R1 (680Ω). Since zener diode D1 is under breakdown region the voltage across it will be 12V. So the total output voltage will be steady 12.7 V(theoretically). That is the zener voltage plus base emitter voltage of Q1.Here transistor Q1 will conduct the excess current required .

Notes.

• If 12V zener is not available ,use the nearest value.
• The transformer T1 can be as 23oV primary;15V/5A secondary step down transformer.
• The capacitors must be rated at least 25V.
• By changing the value of the Zener diode, different output voltages can be obtained from the circuit.

The 2N3055 is a silicon Epitaxial-Base Planar NPN transistor mounted in Jedec TO-3 metal
case. It is intended for power switching circuits, series and shunt regulators, output stages and high fidelity amplifiers.

Maximum Ratings

• Collector-Base Voltage 100 V
• Collector-Emitter Voltage (RBE £ 100W) 70 V
• Collector-Emitter Voltage (IB = 0) 60 V
• Emitter-Base Voltage (IC = 0) 7 V
• Collector Current 15 A
• Base Current 7 A
• Total Dissipation at Tc £ 25 oC 115 W
• Storage Temperature -65 to 200 oC
• Operating Junction Temperature 200 oC

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Regulator 5 volt Meggunakan IC 7805

Regulator 5 volt IC 7805

Skema rangkaian regulator 5 volt

The IC 7805 provides circuit designers with an easy way to regulate DC voltages to 5v. Encapsulated in a single chip/package (IC), the 7805 is a positive voltage DC regulator that has only 3 terminals. They are: Input voltage, Ground, Output Voltage.

Layout IC 7805

Although the 7805 were primarily designed for a fixed-voltage output (5V), it is indeed possible to use external components in order to obtain DC output voltages of: 5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V. Note that the input voltage must, of course, be greater that the required output voltage, so that it can be regulated downwards

Features IC regulator 7805
• Output Current up to 1A
• Output Voltages of 5 Volt
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection

Data max IC 7805
Input Voltage........................................ 35
Thermal Resistance Junction-Cases (TO-220)40......... 5 °C/W
Thermal Resistance Junction-Air (TO-220)............. 65 °C/W
Operating Temperature Range (KA78XX/A/R)............. 0 ~ +125 °C
Storage Temperature Range............................ -65 ~ +150 °C.

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