cupoftea
Advanced Member level 5
Hi,
The attached is two 300W pushpulls
24vin, 32vout, 300wout, 300khz.
One has the sec snub returned to the vout, other, to the GND.
Obviously , returning snub to vout is best.
Voltage reflected to the sec diodes is 24*(NShalf/NP)*2 = 96V.
So ideally, the sec snub would go from cathode to a 97V voltage source (eg capacitor charged up to 97V)…..however, that’s extra components.
For the flyback, the RCD clamp is a well known snubber…why , for the pushpull, is the “Diode/TVS to vout” not a well known snubber?
The attached is two 300W pushpulls
24vin, 32vout, 300wout, 300khz.
One has the sec snub returned to the vout, other, to the GND.
Obviously , returning snub to vout is best.
Voltage reflected to the sec diodes is 24*(NShalf/NP)*2 = 96V.
So ideally, the sec snub would go from cathode to a 97V voltage source (eg capacitor charged up to 97V)…..however, that’s extra components.
For the flyback, the RCD clamp is a well known snubber…why , for the pushpull, is the “Diode/TVS to vout” not a well known snubber?