udhay_cit
Full Member level 6
I have an isolated 1W, 5V-5V DC/DC converter from Murata (NXE1S0505MC) and I'm impressed with the converter design. As I can see the input primary circuit is looks like a "Royer Oscillator" and the toroidal core is embedded inside the multilayer PCB. The internal X-Ray view is in the link. https://www.youtube.com/watch?v=CT3yCUjMXlc
I'm interested to make one working circuit of royer oscillator based isolated DC/DC converter for 1W to 5W power rating just for ground isolation purpose. The primary driving circuit has very few components with two MOSFETs, 3 capacitors (including the decoupling) and only one resistor. From the X-ray video, I don't see more primary turns (My count is 8+8 push pull) and more turns are possible because of multilayer PCB.
I try to make my prototype circuit with few toroidal cores available with me and it doesn't work. Any one has experience to make DC/DC converter like this.
Udhay
I'm interested to make one working circuit of royer oscillator based isolated DC/DC converter for 1W to 5W power rating just for ground isolation purpose. The primary driving circuit has very few components with two MOSFETs, 3 capacitors (including the decoupling) and only one resistor. From the X-ray video, I don't see more primary turns (My count is 8+8 push pull) and more turns are possible because of multilayer PCB.
I try to make my prototype circuit with few toroidal cores available with me and it doesn't work. Any one has experience to make DC/DC converter like this.
Udhay