Schematic & Wiring Diagram: Power Supply

Showing posts with label Power Supply. Show all posts

Showing posts with label Power Supply. Show all posts

Friday, July 26, 2013

Unregulated Power Supply

This page come from ww.zen22142.zen.co.uk, show you about circuit of un regulated powersupply:
A basic full wave rectified power supply is shown below. The transformer is chosen according to the desired load. For example, if the load requires 12V at 1amp current, then a 12V, 1 amp rated transformer would do. However, when designing power supplies or most electronic circuits, you should always plan for a worst case scenario. With this in mind, for a load current of 1 amp a wise choice would be a transformer with a secondary current rating of 1.5 amp or even 2 amps. Allowing for a load of 50% higher than the needed value is a good rule of thumb. The primary winding is always matched to the value of the local electricity supply.
Unregulated Power Supply circuit diagram

Unregulated Power Supply circuit diagram

Notes:
An approximate formula for determining the amount of ripple on an unregulated supply is:
Vrip = Iload * 0.007 / C where I load is the DC current measured through the load in amps and C is the value of the capacitor in uF.The diagram below shows an example with a load current of 0.1 amp and a smoothing capacitor value of 1000uF.
The calculated value of ripple is (0.1 * 0.007) / 1000e-6 = 0.7 volts or 700mV. The value of peak-peak ripple measured from the graph is 628mV. Therefor, the equation is a good rule of thumb guide for choosing the correct value for a smoothing capacitor in a power supply.

Battery 9V Voltage Doubler

electronic circuit diagram

MAX1044 is a charge pump converter - it uses a capacitor as a "bucket" to pump charge from one place to another. Normally, there is a capacitor connected from pin 2 of the 1044 to pin 4. This capacitor is charged between +9V and ground, and then switched in parallel with a capacitor from pin 5 to ground in a way that makes a negative voltage on the second cap.

In this UPverting use, the 1044 still switches pin 2 between +9V and ground just as it would for a voltage inverter. However, we ignore the pin 4 and 5 connections that would make an inverter from it. Instead, we connect two capacitors and diodes as shown (D1, 2, and C1, 2). The voltage on pin 2 of the 1044 is switched from +9V to ground. When it switches to ground, C1 fills with voltage through D1. When it then switches to +9, it pulls the negative terminal of C1 up to +9V. D1 now blocks any flow of current back into the battery, so the charge in C1 flows through D2 into C2. So at C2, we now get almost 18V!

There's more. If we add another two diodes and capacitors (D3, D4 and C3, C4), we can add another 9V to it, as C3 charges to +18 through D3 when pin 2 is at ground, and is pulled up to +25 (+27 minus the voltage drops of the diodes) when pin 2 goes high. We can do it again with D5, D6 and C5, C6 to get +33V. The limit on all this is the losses in the diode voltages. Each time we add a section, we add two more diode drops that we can't take advantage of to charge capacitors. But +33 is not bad for a single 9V battery!

If you build this, you MUST take notice of the voltages on the capacitors. The caps can all be the same value, but C1, C2 need to be 25V units, C3, 4, 5, and 6 can be 35V units, and C5 and C6 might need to be 50V unit just for some safety margin. 1N400x diodes work and are cheap, but the losses are higher than they really need to be. For higher performance and lower losses, it's better to use something like the 1N5817 schottky diodes for low losses. But both will work.

This charge pumping is a very efficient way to convert voltages. The only power lost is that power dissipated in the resistances of the switches inside the 1044 and the series resistance of the capacitors and diodes, as well as the power to run the internal oscillator that flips the switches when needed.

All by itself, the 1044 runs at about 7-10kHz, so there will be ripple of that amount on the C2 output and on the +9V output from the battery as well. Audio equipment that uses this voltage could have a "whine" audible if you're not careful. However, the 1044 has a frequency boost feature. If you connect pin 1 to the power supply (shown by the little open switch) then the oscillator frequency goes up by about 6:1. The oscillator then works well above the audio region. Any whine is then going to be inaudible.

Saturday, September 22, 2012

Positive Variable Power Supply circuit

The following diagram is the schematic diagram of positive adjustable/variable power supply. It means that the power supply output will be DC current with positive [+] and ground [0] polarity.

Schematic diagram:

Positive Variable Power Supply circuit

Power Supply Input:

Component part list:
R1 = 330
R2 = 1K
VR1 = 10K 10-turn trimpot
C1 = 2200uF/50V
C2,4 = 100nF ceramic
C3,4 = 10uF/63V
D1-6 = 1N5403
REG IC = LM317T
Heatsink

Visit this page to download the variable power supply diagram manual.

Sunday, July 29, 2012

1.3-12V Small Variable Power Supply

This is a small variable power supply delivers adjustable output voltage of 1.3v-12v. The current output determined by R3. With current setting (see part list), it will deliver current output about 1A.

Detail Specification:
Output (approximate values):

Vmin = (R4 + R5) / (R5*1.3)
Vmax = (7.15 / R5) * (R4 + R5)
Imax = 0.65/R3
Max. Power on R3: 0.42/R3
Min. Input DC Voltage (pin 12 to pin 7): Vmax + 5

Parts List
B1 = 40V/2.5A
R1 = 1k ohm
R2 = Potensiometer 5k ohm
R3 = 0.56R/2W
R4 = 3.3k ohm
R5 = 4.7k ohm
C1 = 2200uF (3300uF even better)
C2 = 4.7uF
C3 = 100nF
C4 = 1nF
C5 = 330nF
C6 = 100uF
D1 = Green LED
D2 = 1N4003
F1 = 0.2A F
F2 = 2A M
IC1 = LM723 (in a DIL14 plastic package)
S1 = 250V/1A
T1 = 2N3055 on a heatsink 5K/W
TR1 = 220V/17V/1.5

R2 sets the output voltage. The maximum current is decided by the value of R3: the over-current protection circuitry inside the LM723 senses the voltage across R3 and starts shutting the output stage off as soon as this voltage approaches 0.65 V. This way the current through R3 can never exceed 0.65/R3, even if the output is shorted.

C3 and C4, both ceramic, must be placed as close as possible to the integrated circuit, because the LM723 can be prone to unwanted oscillations. It is not an overkill to solder them directly (and very carefully) to the pins of the IC. All other connections should also be kept short.

The LM723 works with input DC voltages from 9.5 to 40 V and the IC itself can source some 150 mA if the output voltage is not more than 6-7 V below the input. When an external pass transistor is used (in the usual emitter-follower mode), the base-emitter junction of T1 represents a significant resistance and the integrated circuit's output stage is relatively lightly loaded. All the current drawn by the load passes through T1 and it dissipates an amount of power that is directly proportional to the current and the difference between the input and the output DC voltage.

Saturday, August 27, 2011

5V Boost Converter using LTC3440

5V Boost Converter using LTC3440

A simple 5V boost converter using LTC3440 shown here. LTC3440 is a high efficiency DC to DC converter that can be operated from input voltages below, above or equal to the output voltage. As for the synchronous rectification, LTC3440 delivers up to 96% efficiency and up to 600 mA output current is guaranteed. The IC has built an oscillator whose frequency synchronized whose frequency can be adjusted from 300 kHz to 2 MHz

The LTC3440 circuit is connected as a boost converter capable of delivering 5V output 5V @ 300mA constant input voltage of 2.7 to 4.2 V. The resistor R4 is used to set the oscillator frequency, while the resistors R1 and R2 are used to adjust the output to 5 volts. Resistance R3 and capacitor C1 form a frequency compensation network, while C3 serves as an input bypass capacitor. S1 is the stop switch and capacitor C2 is the output filter.

Saturday, August 20, 2011

Simple Circuit 12V to 120V DC DC Converter

Simple Circuit 12V to 120V DC DC Converter

Its a simple circuit of 12V DC to 120V DC converter. The circuit consists of two phases first phase of the investor base and then a rectifier and filter stage. IC1 NE555 is wired as an astable multivibrator operating at a frequency of 100 Hz and can be adjusted to the preset R1. IC1 output is coupled to the clock input of IC2 is a dual CMOS D flip-flop. IC2 divides the pulse train of 100 Hz IC1 2 50 Hz pulse trains that are 180 degrees out of the party and offered on the pin 1 and 2 of IC2.

When pin 1 is high transistor Q1 conducts and current flows through the upper half of T1 primary winding. When pin 2 is the transistor Q2 conducts and high current flows through the lower half of the primary coil T1. As a result of a voltage of 120 V AC are induced in the secondary of T1. This voltage is rectified with bridge D1 to provide a 120V DC output. Capacitor C2 is the DC input filter, while C3, C4 are the output filters.

Notes.

The circuit can be assembled on a vero board.
Q1 and Q2 require heat sink.
Output power of this dc dc converter is around 100 watts.
IC1 and IC2 are to be mounted on holders.
An optional 5A fuse can be added in series to the 12V supply line.
T1 can be a 9-0-9V /250V/3A mains transformer.
If 3A bridge is not available make one using 1N5408 diodes.
Out of the two Flip-Flops inside CD4013 only one is used here.
Output of IC1 must be set to 100Hz by adjusting preset R1

Thursday, August 18, 2011

6-8A / 0-28V Variable Power Supply Circuit

6-8A / 0-28V Variable Power Supply Circuit

This is the schematic diagram of variable power supply. The output voltage of this power supply circuit can be adjust from 0V to 28V DC, while the current output is static the rang is about 6A up to 8A.

Parts List:

R1 = 2K2 Ohm 2,5 Watt

R2 = 240 Ohm

R3,R4 = 0.1 Ohm 10 Watt

R7 = 6K8 Ohm

R8 = 10K Ohm

R9 = 47 Ohm 0.5 Watt

R10 = 8K2 Ohm

C1, C7, C9 = 47nF

C2 = 4700uF/50v – 6800uF/50v

C3, C5 = 10uF/50v

C4, C6 = 100nF

C8 = 330uF/50v

C10 = 1uF/16v

C11 = 22nF

D1…D4 = four MR750 diodes (MR750 = 6 Ampere diode) or 2 x 4 1N5401 diodes.

D5 = 1N4148, 1N4448, 1N4151

D6 = 1N4001

D10 = 1N5401

D11 = LED

D7, D8, D9 = 1N4001

TR = 2 x 15 volt (30volt total) 6+- Ampere

IC1 = LM317

T1, T2 = 2N3055

P1 = 5k

P2 = 47 Ohm or 220 Ohm 1 Watt

P3 = 10k trimmer pot

F1 = 1 Amp

F2 = 10 amp

Source: schematicdiagram.s4s.in

Friday, July 22, 2011

Offline Switching Power Supply Circuit (5V - 10A - 50W)

Here the schematic diagram of offline switching power supply:

Circuit Diagram:

Offline Switching Power Supply Circuit (5V - 10A - 50W)

Parts List:

electronic circuit diagram

This switching power supply is using a MOSFET. For 220V AC voltage input, use BUZ80A/IXTP4N8 MOSFET and for 110V AC input voltage, use GE IRF823 MOSFET. The output will be 5 Volt DC with electric current can be reach 10A.

Tuesday, June 21, 2011

Power Supply DC variable

Power Supply DC variable

This circuit is called a Power Supply DC variable is one of the best advantageous apparatus in the cyberbanking hobbyist’s work. This ambit is not an complete novelty, but a simple, reliable, “rugged” and short-proof, with a capricious voltage up to 24V and capricious so that it is up to 2A.

Capacitor C1 can be 2200 to 6800?F, 35 to 50V. For Q4 charge be army on heatsinks to accumulate a acceptable breeze of acceptable output. For the 2N3055 transistor (Q4) can be replaced with a hardly beneath able TIP3055 type.

Componen used:

P1 = 500R Linear Potentiometer

P2 = 10K Log. Potentiometer

R1, R2 = 2K2 1/2W

R3 = 330R 1/4W

R4 = 150R 1/4W

R5 = 1R 5W

C1 = 3300?F 35V

C2 = 1?F 63V

D1, D2 = 1N5402 3A

D3 = 5mm. Red LED

Q1 = BC182

Q2 = BD139

Q3 = BC212

Q4 = 2N3055

T1 = 220V Primary, 36V Center-tapped Secondary

Friday, June 17, 2011

5V DC / 10A Power Supply Offline Switching

5V DC / 10A Power Supply Offline Switching

5V DC / 10A Power Supply Offline Switching

Offline switching ability accumulation which consistent 5VDC/10A achievement from 110/220V AC home ability electric. See the genitalia list, there should be altered MOSFET blazon for 110V anf 220V volatage input.

The schematic shows a 50-W ability accumulation with a 5-V 10-A output. It is a flyback advocate operating central the connected mode. The ambit has functionality of a capital ancillary and accessory ancillary ambassador will full-protection from accountability altitude such as overcurrent. When the accountability action has been removed, the ability accumulation will go into the soft-start aeon aloof afore recommencing accustomed operation.

Saturday, April 16, 2011

1000 Volt Regulated High Voltage Power Supply IC 7805

1000 Volt Regulated High Voltage Power Supply IC 7805

Input voltage from aerial voltage DC DC advocate is 12V AC at 800mA accepted and again adapted to DC through a arch rectifier Diode 1A. The voltage achievement of advocate ambit can be adapted in the ambit of 0-1000V DC. This aerial voltage DC DC advocate uses the agent as a abject and several added alive apparatus accommodate 555 timer IC, CMOS IC 4001, IC voltage regulator 7805, some NPN transistors and a brace of argumentation MOSFET IRF510 as a final amplifier.

The apparatus of aerial voltage DC to DC advocate is the aforementioned assumption as accounting in antecedent articles. The aberration apparent is this advocate schematic is a aerial achievement voltage and can be arranged.

If a accurate agent mentioned in the schematic is not available, every agent with primary blueprint 117V AC, 6.3V AC CT accessory to work. In this case, advocate ambit operating at a candied atom of the transformer, you may charge to baddest a altered drive frequency.

Wednesday, April 13, 2011

22W Amplifier for 12V Power Supply Systems

This is a 22-W Amplifier ambit that is advised for or 12-V DC ability accumulation Systems. There are abounding appliance for this circuit, such as in car audio application. In car electrical ability accumulation system, the 12V ability accumulation will be provided by the host vehicle’s battery. The capacitor C3 is acclimated to accord ripple rejection, back blatant ability accumulation voltage is accepted in automotive electrical system. The ability accumulation babble arresting on car ability accumulation is decoupled by the capacitors C2 and C1. Smaller capacitor C2 is bare to decouple the aerial abundance noise, back the beyond cap (C1) usually has aerial agnate alternation inductance that anticipate the aerial abundance babble (such as annihilate or spike) to be bypassed. The capacitors C5 brace the admission audio arresting to IC1 while decoupling changeless DC offset. For bigger bass response, this ambit anticipate rolling off of the low audio frequencies by allotment a almost ample capacitance for baby signal, 10μF capacitors. Here is the schematic diagram of the circuit:

This ambit anticipate ability accumulation pop babble by muting the amplifier at the power-up. The aphasiac ascribe (pin 14) is fed by capacitor C6 and Resistor R1, giving adjournment on power-up which anticipate aces pop. This R/C time connected gives about 1.4s adjournment to accumulate the achievement muted, abundant to accomplish abiding the amplifier ability the abiding accompaniment afterwards powered up. About how this muting works, the amplifier will be ON if pin 14 has at atomic 8.5 V. The dent will abide in aerial action if the voltage at this pin is beneath 3.3V. This ascribe pin charge actual low accepted consumption, alone about 100 pA for standby (muted) and about 40 pA back active. The R1 ethics charge be no beyond than 100,000 Ω. The R1/C6 connected should be on the additional order. If time connected is too short, the aces pop will still be heard, but too continued time connected will accord abhorrent delay.

Thursday, June 3, 2010

10 Amp 13.8 Volt Power Supply Circuits Diagram

10 Amp 13.8 Volt Power Supply Circuits Diagram

10 Amp 13.8 Volt Power Supply Circuits Diagram

I actually activated this and advisedly destroyed several 2N3055’s by shorting the emitters to ground. In all cases the transistors opened up and no beneficiary to emitter abbreviate occurred in any transistor. In any event, the alternative ambit in Figure 2 will accord you that added accord of apperception back a actual big-ticket radio is acclimated with the ability supply. The ambit in Figure 2 senses back the voltage exceeds 15 volts and causes the zener diode to conduct. Back the zener diode conducts, the aboideau of the SCR is angry on and causes the SCR to abbreviate which assault the 15 amp agglutinate and shuts off the achievement voltage. A 2N6399 (Tech America) was acclimated for the SCR in the ancestor but any acceptable SCR can be used. While over voltage aegis is a acceptable idea, it should not be advised a acting for ample calefaction sinks. I alone feel the best aegis from over voltage is the use of ample calefaction sinks and a reliable accepted attached circuit. Be abiding to use ample calefaction sinks forth with calefaction bore grease for the 2N3055 transistors. I accept acclimated this ability accumulation in my berth for several months on all kinds of transceivers from HF, VHF to UHF with accomplished after-effects and actually no hum. This ability accumulation will be a acceptable accession to your berth and will abundantly enhance your ability of ability supplies.

Parts

R1 1.5K ¼ Watt Resistor (optional, tie pins 6 & 5 of IC1 together if not used.)

R2,R3 0.1 Ohm 10 Watt Resistor (Tech America 900-1002)

R4 270 Ohm ¼ Watt Resistor

R5 680 Ohm ¼ Watt Resistor

R6,R7 0.15 Ohm 10 Watt Resistor (Tech America 900-1006)

R8 2.7K ¼ Watt Resistor

R9 1K Trimmer Potentiometer (RS271-280)

R10 3.3K ¼ Watt Resistor

C1,C2,C3,C4 4700 Microfarad Electrolytic Capacitor 35 Volt (observe polarity)

C5 100 Picofarad Ceramic Disk Capacitor

C6 1000 Microfarad Electrolytic Capacitor 25 Volt (observe polarity)

IC1 LM723 (RS276-1740) Voltage Regulator IC. Socket is recommended.

Q1 TIP3055T (RS276-2020) NPN Transistor (TO-220 Heat Sink Required)

Q2,Q3 2N3055 (RS276-2041) NPN Transistor (Large TO-3 Heat Sink Required)

S1 Any SPST Toggle Switch

F1 3 Amp Fast Blow Fuse

D1-D4 Full Wave Bridge Rectifier (RS276-1185)

T1 18 Volt, 10 Amp Transformer Hammond #165S18 (Tech America 900-5825)

Tuesday, May 18, 2010

Odd Block KT88 Series 1 Tube Amp-Power Supply

Odd Block KT88 Series 1 Tube Amp-Power Supply

Odd Block KT88 Series 1 Tube Amp-Power Supply

A schematic of the ability accumulation is apparent below. Like the amplifier schematic, the ability accumulation ambit is © OddWatt Audio and permission to host the schematic on this armpit has been provided by OddWatt Audio. You are chargeless to use the schematic for personal, non-commercial use.

Mains ability enters the amplifier through an IEC atrium amid at the rear of the amp. The IEC atrium includes a 3 Ampere agglutinate and an EMI filter. The ability agent is an OEM bogus by Edcor with ratings of 180V-0-180V at 250 mA and 12V at 4A. Ability accumulation capacitors are Panasonic ECG alternation 500 volt electrolytic and Solen Polypropyene. The ample ability resistors are Vishay/Dale wire anguish and the actual resistors are carbon film. The High-Tension (HT) accumulation is rectified with STTH5 ultrafast aerial voltage rectifiers and uses CRC filtering. A 12V DC accumulation is acclimated for the tube heaters. An adjustable adjournment ambit is acclimated to adjournment the HT accumulation on ability up.

Wednesday, May 5, 2010

POWER SUPPLAY 13,8 Volt Schematic

POWER SUPPLAY 13,8 Volt Schematic

POWER SUPPLAY 13,8 Volt Schematic

POWER SUPPLAY 13,8 Volt Schematic

POWER SUPPLAY 13,8 Volt Schematic

Part list for 12 Amp BDX33-based power supply:

2 x 15 volt 6+ amps
2 times two MR750 (MR7510) diodes (MR750 = 6 Ampere diode) or 2 times 3 1N5401 (1N5408) diodes.
F1 = 1 Amp
F2 = 15 amp
R1 2k2 1 Watt
R2 10k
R3 1k 0.5 watt
R4,R5,R6,R7 0.1 ohm 10 watt
R8 4.7
R9 6k8
C1 two times 4700uF/35v
C2 330uF/35v
C0',C3,C4,C6,C10 100nF
C7 330uF/25v
C8 47nF
C9 47uF/25v
D1 1N5401
D2 LED
D3, D4, D5 1N4001
IC1 78L15
relay 12 volt 2x5 amp switching
3 darlington transistors: T0,T1,T2 = BDX-33 NPN TO-220 transistor
Zd 8 or 9 volt, 5 watt
P1 2k trimmer

If using a bridge rectifier (like in schematic 2) you do not need 2 x 15 volts 6 amps, but 1 x 15 volt 10+ Amps

Part list for 20 Amp BDX33-based power supply:

2 x 15 volt 12+ amps
2 times 3 MR750 (MR7510) diodes (MR750 = 6 Ampere diode) or 2 times 5 1N5401 (1N5408) diodes.
F1 = 2 Amp
F2 = 25 amp
R1 2k2 1 Watt
R2 10k
R3 1k 0.5 watt
R4,R5,R6,R7 0.1 ohm 10 watt
R8 4.7
R9 6k8
C1 22000uF/35v
C2 330uF/35v
C0',C3,C4,C6,C10 100nF
C7 330uF/25v
C8 47nF
C9 47uF/25v
D1 1N5401
D2 LED
D3, D4, D5 1N4001
IC1 7815
relay 12 volt 10 amp switching
Four darlington transistors: T0,T1,T2,T3 = BDX-33 NPN TO-220 transistor
Zd 8 or 9 volt, 5 watt
P1 2k trimmer

If using a bridge rectifier (like in schematic 2) you do not need 2 x 15 volts 12 amps, but 1 x 15 volt 20 Amps

Sunday, August 16, 2009

Low-Ripple Power Supply

Low-Ripple Power Supply circuit diagram

This circuit can be used where a high current is required with a low-ripple voltage (such as in a high-powered class AB amplifier when high-quality reproduction is necessary). Q1, Q1 and R2 can be regarded as a power Darlington transistor. ZD1 and R1 provide a reference voltage at the base of Q1. ZD1 should be chosen thus: ZD1=Vout-1.2 . C2 can be chosen for the degree of smoothness as its value is effectively multiplied by the combined gains of Q1/Q2, if 100uF is chosen for C2, assuming minimum hfe for Q1 and Q2, C=100x15(Q1)x25(Q2)=37,000uF.

Saturday, June 6, 2009

Variable Power Supply with L200

This is adjustable power supply schematic diagram with IC L200 for its power regulation.

Variable Power Supply with L200 circuit diagram

Voltage output is controlled by 10K variable resistor. Output voltage range value will be about 3 to 15 volts, and current range is about 10mA minimum and 2 amp maximum. Reaching the current limit will reduce the output voltage to zero.

Friday, April 10, 2009

3-30 V/2.5 A Adjustable Stabilized Power Supply

This is Simple 3-30 volt adjustable and stabilized power supply circuit. You can use this circuit for general purpose.

Here the schematic diagram:

3-30 V/2.5 A Adjustable Stabilized Power Supply circuit diagram

Component list:

R1 = 560R 1/4W	C1 = 100nF
R2 = 1,2 K 1/4W	C2 = 2200uF 35-40V
R3 = 3,9 K 1/4W	C3 = 100 pF
R4 = 15K 1/4W	C4 = 100uF/ 35V
R5 = 0,15R 5W

D = B40 C3300/2200, 3A rectifier bridge
P1 = 10K potesiometer	TR1 = BD 135
IC = LM723	TR2 = 2N3055

PCB layout:

3-30 V/2.5 A Adjustable Stabilized Power Supply circuit diagram

Components placement:

3-30 V/2.5 A Adjustable Stabilized Power Supply circuit diagram

For complete explanation, circuit's works and how to build this circuit into the box, download the full tutorial here

Monday, March 2, 2009

Dual Regulated Power Supply

electronic circuit diagram

This is dual regulated power supply. There are 3 output that are (+) voltage, (0) Grounding, and (-) voltage. The current output max about 0.3-0.5 A.

You need center tap transformer. for example, if you need 12v output, you should connect J1 to 15v transformer output, J2 connected to 0v and J3 connected to another 15V.

Electronic Fuse for DC Short Circuit Protection

Electronic Fuse for DC Short Circuit Protection circuit diagram

This circuit will protect your power supply or battery. The electric current will stopped by relay when electric current short occured, Relays must be chosen with a voltage value equals to the input voltage. Don't omit using the 100uF capacitor with appropriate voltage value with respect to the input voltage. If you can't provide, you can use C106 instead of BRX46.

You can adjust the current with using 10K potentiometer. If you will use the fuse with very high currents, lower the 0R6 5W resistor value (ex. 0R47, 0R33, 0R22 or 0R1). Watt value of the resistor should be increased also.

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