smps. psu

  1. M

    Help fixing Panasonic TNPA5808 (SMPS) low voltage issue

    I'm trying to fix an old Panasonic LED TV, mainly for educational purposes. While I was checking voltages on the P-Board I got to know the voltage of the SRV-16V rail is 13.2V (with and without dummy load). Both 16V and 24V rails are bit lower than specifications. However the 5.3V standby line...
  2. Z

    LED Panel power supply issue

    I have a quite new LED panel which was working properly for 2,5 days. The led panel contains 130 pcs white LED in series. Now there is only ~7-8 mA flowing through the LED strip. Here is the actual power supply: The output without load is ~495 V DC (which would cause 3.8 V drop on every every...
  3. RS232 or I2C PSU Module?

    Hello, I am looking for a small PSU Module such as a DC-DC convertor or an SMPS that can be controlled using a serial interface such as RS232, I2C, SPI etc. I can see this Bench top PSU (link below), but I was hoping there was a small PCB module available that could handle around 5A...
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