Power supply

1. NiCd battery charger for flashlight.

NiCd battery charger for flashlight circuit diagram

2. FET based voltage regulator.

FET based voltage regulator circuit

3. Constant current sources.

Constant current source circuit diagram

4. Constant current source.

Constant current source circuit diagram

5. Op-amp as voltage regulator circuit.

Voltage regulator circuit diagram

6. Constant current source with cascode of n-p-n transistors.

Constant current source circuit diagram

7. Two-terminal constant current source.

Constant current source circuit diagram

8. Constant current sources.

Constant current source circuit diagram

9. Battery charger circuit diagram.

Charger circuit diagram

10. DC-DC voltage converter circuit schematic.

DC-DC converter schematic

11. Very good battery charger circuit.

Battery charger circuit diagram

12. Replacement for high voltage zener diode.

Replacement for high voltage zener diode

13. Simple Geiger counter circuit diagram.

Geiger Counter - radioactivity detector circuit diagram

14. Battery charger circuit.

Charger

15. DC-DC converter based on CD4000.

DC-DC converter circuit diagram

16. Constant current source.

Constant current source schematic

17. Replacement for zener diod.

Replacement for zener diode

18. Voltage regulator with current limiter - constant current source circuit diagram.

Voltage regulator with current limiter - constant current source circuit diagram

19. Voltage regulator with solar battery for charger.

Voltage regulator with solar battery for charger

20. Power supply with 50/60 Hz noise suppression circuit.

Power supply with 50/60 Hz noise suppression circuit

21. Voltage regulator with suppression for main harmonic circuit.

Power supply with  suppression for main harmonic circuit

22. Charger powered by free energy.

Charger powered by free energy circuit diagram

23. Logic gate (7400) based voltage regulator.

Logic gate based voltage regulator circuit diagram

24. Current source controlled by voltage.

Current source controlled by voltage circuit diagram

25. Constant current source based on voltage regulator IC.

Constant current source based on voltage regulator IC

26. Switch Mode Power Supply.

Switch Mode Power Supply circuit diagram

27. Isolated Power supply for digital clock.

Isolated Power supply for digital clock

28. DC-DC converter with current multiplier.

DC-DC converter with current multiplier

29. DC-DC voltage converter based on Voltage Quadrupler circuit with IC CD4093.

DC-DC converter circuit diagram

30. Constant current source based on L431 IC.

Constant current source

31. Voltage to current convertrt.

Voltage to current convertrt circuit diagram

32. Shunt voltage regulator circuit.

Shunt voltage regulator circuit diagram

33. Unusual rectifier circuit diagram.

Unusual rectifier circuit diagram

34. Powerful shunt voltage regulator.

Powerful shunt voltage regulator circuit diagram

35. Thyristor-based switching power supply.

Switching power supply based on thyristors circuit schematic

36. Voltage regulator with current source.

Voltage regulator with current source circuit schematic

37. Voltage regulator - charger.

Voltage regulator - charger

38. DC-DC voltage converter.

DC-DC converter circuit schematic

39. Voltage-to-current converter drives LED.

Voltage-to-current converter drives LED

40. DC to DC converter drives blue LED.

DC to DC converter drives blue LED

41. Current source, controlled by voltage.

Current source, controlled by voltage circuit schematic

42. Led step-up converter for flashlight.

Led Step-up Converter circuit schematic

43. IC voltage regulators connected in parallel.

IC voltage regulator in parallel

44. Voltage regulator with improved stability.

Voltage regulator with improved stability

45. Voltage regulator with double pulse frequency.

Voltage regulator with double pulse frequency

46. Current source.

Current source circuit

47. Circuit with negative resistance.

Circuit with negative resistance

48. Voltage converters with current coupling feedback.

Voltage converters with current coupling feedback circuit schematic

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