transformer

Hi. I am trying to build a power supply which output is 2000VDC and 20mA (40W) input is 220V ac (european input). I thought I can use flyback transformer. And I started to design. I selected duty cycle as %50 and frequency as 50kHz (actually I don't know how to select frequency and duty cycle...

I am having issues finding a Variable current sensor switch that will precisely sense within the AC current ranges of 0-1 Amps (Test Range 0.001-0.2 Amps). Once the range of (0.001-0.2A) is sensed, I would like to trigger an alarm. Any suggestions on what I could use to sense such low AC currents?

Hi everyone, This is my first post here. I am studying for a masters in engineering with the open university. I have only recently started so please forgive my novice vocabulary. I am currently designing a personal project. The figures I am working with are as follows; Voltage: 12vdc Amps...

I have currently designed a powerr converter, with a single phase transformer which operates at >200kHz. The design goal was to create a converter that increases power density, by minimzing the size of the passive components, namely the transformer and the output storage capacitors, which are...

Hi! I have a very old Kavo Brand German made micro motor (probably made around 1970s-80s). It it a very well built tool but the power supply is suffering from some problem. When the brushed motor hand piece is connected and powered on, it will spin but in constant pulses (maybe 1 second on, 1...

ok i know its a step-up transformer that i pulled from an electric mouse trap for the life of me i can't figure out how the bloody heck they get the thing to step up or work at all I've dissected a couple and it would appear to be a layered step-up transformer the blue and black are the primary...