Is it possible to use an external solid state relay with kit K8004 for increased power handling capability?
Sorry, we have no experience with the use of a solid state relay as PWM driver.
Most likely, it is not designed for switching at several KHz.
Please check manufacturer datasheet for max. switching freq.
Above that, some of them use zero cross switching and are not suited for DC operation.
[quote=“VEL417”]Sorry, we have no experience with the use of a solid state relay as PWM driver.
Most likely, it is not designed for switching at several KHz.
Please check manufacturer datasheet for max. switching freq.[/quote]
I was wanting to use the K8004 to drive the SSR.
Typical SSR’s will turn on in 100-150 us, and turn off in 300 to 400 us. This should be sufficiently fast for smoothly controlling the speed of a motor.
You can purchase a DC-DC 100A SSR on e-bay for $13, [One-off Time: ≤10ms]. I’m looking for a simple way to use the K8004 to control a motor.
There are some schematics available on the Internet using 555 timers, I am looking for something I didn’t have to build from scratch.