Miroslav Hancar-
Schematics
10/25/2024 at 22:28 • 0 commentsRectifier, capacitors and transformer tap switches (PCB 3)
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Analog control circuits of power supply (PCB 2)
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Main board schematics
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Measurements
10/25/2024 at 22:26 • 0 commentsI did some measurements to verify the dynamic properties of the power supply.
First, i measured the transient step load response in CV mode. Output voltage was set to 10V, load resistance was 5 Ohms switched by MOSFETs.
(Yellow trace is the output voltage. Blue trace is the gate control signal)
![Transient response in CV mode]( "Transient response in CV mode")
CV - 10Vout, 5R load, ON ![]()
CV - 10Vout, 5R load, ON, zoomedCV - 5Vout, 5R load, OFF, zoomed ![]()
CV - 10Vout, 5R load, OFF, zoomed Transition from CV to CC (and vice versa). Output voltage was to 10V, current limit to 1A and the load resistance was 5 Ohms.
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CV to CC, 10Vout, 5R load, 1A current limit ![]()
from CC back to CV
Voltage rise after power-up![]()
DC Power Supply
Buying a ready-made power supply would be too easy, so I decided to make my own.
