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power source to be used - 12V 5A DC Inside: potentiometer B100K + resistor 10K Switch Diode and Capacitor for input 5V stabilizer + capacitor + USB port var. output Add: 3-digit voltmeter MOSFET 60V 60A with heatsink pad Output diode Expected power: 60W |
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Go to more stable output voltage. 150kHz 3A Test factory buck converter with LM2596S and W103 3296. 15.0V in - 9.0V out: 1.23-9.00-9.00 on W103, 15.0-9.0-0.0-1.23-0.0 on LM2596S in case change in to 10.0, there are only 15 to 10 changed on pins above. 15.0V in - 5.0V out: 1.23-5.00-5.00 on W103, 15.0-5.0-0.0-1.23-0.0 on LM2596S in case change in to 10.0, there are only 15 to 10 changed on pins above. So, pin1 - Vin, pin2 - Vout, pin3 ground, pin4 of LM2596S-ADJ connected to pin1 of W103 (feedback), pin5 - ONOFF to ground. pin2 and pin3 of W103 connected to pin2 LM2596S over 470 coil. After pin2 Vout goes to SS34, connected to ground. W103 from 0 to 10kOhm , R=330 Set W103 = 670 , Vin=10, Vout=4.1... Vsense=1.23V |
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Get adjustable power supply board from China , add meter and jack, put into APC original UPS with transformator 0000230 |
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Used to test optimal charger for lead-acid 12V battery: 1) Laptop 19V AC-DC adapter (90W) 2) XL4015 5A DC to DC CC CV step down charging board (module) 3) high-load diode from alternator 4) easy connecting crocodile clips
XL4015_5A_charger_module.jpg (63,352 bytes) |
- Anonymous