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Fig. 1 - Symmetrical Adjustable Power Supply 1.25V to 47V 10 Amps with Short Circuit Protection |
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High Voltage Adjustable Regulator
How the Circuit Works
The Protection Circuit
Formula 1st Ohm's Law
Load Resistor Calculation
Protection Circuit Resistor Calculation
Power Transistors Current
The Power Transformer
Component List
- Semiconductors
- U1 ....................... LM317HV Voltage Regulator
- U2 ....................... LM337HV Voltage Regulator
- Q1 ....................... PNP BD140 Transistor
- Q2 ....................... NPN BD139 Transistor
- Q3, Q4, Q5 ......... PNP TIP36C Power Transistor
- Q6, Q7, Q8 ......... NPN TIP35C Power Transistor
- D1 ...................... KBPC5010 - 50A Rectifier Bridge
- D2, D3 ............... 1N4007 Diode Rectifier
- Resistors
- R1, R2 ................ 2Ω / 2W Resistor
- R3, R4 ................ 0.06Ω / 5W Resistor
- R5, R6 ................ 5KΩ / 1/8W Resistor
- R7, R8 ................ 120Ω / 1/8W Resistor
- R9, R10, R11 ...... 0.1Ω / 5W Resistor
- R12, R13, R14 .... 0.1Ω / 5W Resistor
- RV1 .................... 5KΩ Potentiometer
- Capacitors
- C1, C2 ................ 5600uF - 63V Electrolytic capacitor
- C3, C4 ................ 10uF - 63V Electrolytic capacitor
- C5, C6 ................ 1000uF - 63V Electrolytic Capacitor
- Others
- P1, P2 ................. Connector 3 screw terminal 5mm 3 Pins
- Others ................. Wires, Solders, pcb, etc.
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