Coper
Member level 4
Hello, I have RF PA which supplies the load that can be disconnected or destroyed and therefore the processor in the amplifier must recognize this in order to turn the amplifier off or not to turn it on.
My solution is relative simple. Load have DC resistance under 2 Ohm and therefore have small DC current from V1 over R2, L3 into Load, If load is connected on OK is on C1 logical 0 if Load is disconnected or destroyed is DC current over L3 near 0 and on C1 is logical 1.
My solution works reliably, but it's 9/10 parts.
Does anyone think of a simpler solution, solution with significantly less components ?
My solution is relative simple. Load have DC resistance under 2 Ohm and therefore have small DC current from V1 over R2, L3 into Load, If load is connected on OK is on C1 logical 0 if Load is disconnected or destroyed is DC current over L3 near 0 and on C1 is logical 1.
My solution works reliably, but it's 9/10 parts.
Does anyone think of a simpler solution, solution with significantly less components ?