The timing is controlled by the resistor and capacitor on pins 5 and 6.
yes the values of the resistor and capacitor are good. resistor is 18kohms and capacitor is 1nf.
voltage on pin 4 is zero.
i removed the gate drivers as well.
going to start from scratch. but i am not getting good 50percent duty cycle.
What does "i am not getting good 50percent duty cycle" mean?
First with no fets and no rectifiers. The pnp driver is getting hot. And 494 frequency is 65khz at base of pnp. I removed 2 diodes which were beside pnp. Also removed 2 diodes besides another pnp driver.
Now pnp running cool with 35khz frequency on pnp base.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.