power suply

  1. N

    24VDC Flyback having 26VDC spike. How to filter?

    Hello all, I'm having this issue where my Fly-back power supply is not outputting clean 24VDC. I have attached images of what the scoped waveforms looks like Gate voltage at FET: Scope CH1 Yellow FET drain voltage: Scope CH2 Blue Gate voltage at pin 19 of LT8316: Scope CH3 Purple Output...
  2. L

    How do i make a compact transformer-less power supply for my project?

    Hello! I’ve been searching for a reliable transformer-less power supply circuit for quite some time now. After going through countless circuits on Google, I still can’t find any compact designs that seem trustworthy. Companies have been creating super compact and safe power supplies for...
  3. sribasu

    Does LTC3780 module work with digital voltmeter/ammeters

    I was trying to make a portable PSU with LTC3780 Module and a 12v 7Ah lead acid battery. But I am thoroughly disappointed by the module. Infact my past experience with this module is not good. This module is like a glass ball, with little improper use and it smokes and gets destroyed. I do not...
  4. E

    Common Mode Choke Selection, Does form factor matter?

    I am wanting to use a Mean Well 65W DC to DC LED driver powered off of a 24v Mean Well power supply. The data sheet recommends this circuit and they provide enough information I think I could make my own common mode chokes but I thought it would be easier to buy them on Digikey. I see they...
  5. W

    Power ballast for UV lamp

    Hi there, I have a Luminor RL-820 UV lamp (for Blackcomb LB4-101, LB5-101 & LB6-101) and the controller is damaged. That's 500 USD here in Costa Rica, where I live. I'm not going to pay that because I don't see any value in the controlling features, which are all disabled because here in this...
  6. N

    Dual Power supply with Opamp and 9V battery

    First of all I would like to say that I am very newbie in this electronic design. So please don't get upset if this question is too stupid. I am designing a circuit with opamps that can provide +3V and -3V and that can deliver 0.5 Amps. I know I can use the Lm317 and Lm337 but this time I would...
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