I shared earlier in the SMPS circuit Volt 250W 2×35 “13.8V 250W PC powersupply Modified” writing is almost the same system with the circuit. ATX psi modifying circuit has the advantage over other symmetrical and the primary section of the output MOSFET (IRF840) to be
TL494 ATX Modified SMPS Circuit
ATX power supply control integrated already in the TL494 is still the most widely used integrated is the integrated power directly from the mains voltage transformerless taken as 2 470nF 18v zener diode bridge and the regulated. All transformers are used in addition to distributed and re-hemmed-in current transformer used for the detection of overcurrent protection circuit can be used in different projects in this section
Source elektroda.pl/rtvforum/topic1287723.html Switching Power Supply 250W ATX Modified SMPS schematic pcb files alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-8649.zip
Published: 2009/12/06 Tags: power electronic projects, smps circuits, smps projects, smps schematic, tl494 circuit
High-current Nicad Battery Charger Circuit
Nickel–cadmium battery charging circuit There are two versions of the charging circuit Nacad first BJT (mje2955) and the other MOSFET transistor (2sj295) not much of a difference between the output transistor circuit modified
LED D1 D2 shows the power supply input LED indicates that the battery is full the LED D3 of the circuit indicate that the battery is connected
Charge current can be increased by changing the resistance value in the circuit, the R8 model, especially the model ideal for people dealing with jobs already the author of a charging circuit model used in this work is dealing with the shared circuit