I'm trying to design an alternating PWM signal that has a delay (dead band) built in.
This is to switch power between a HV reed relay and another component. Since there is some delay in the reed relay, I need the dead band so that the input to the components does not to overlap.
I first generated the 50% duty cycle with a 555 timer, and then realized that it can be made simply with a transistor based astable multivibrator. Question is - how do I reliably generate the delay (ok if only on one end). Seems like it should be possible with an extra resistor/capacitor somewhere in the circuit.
Size and simplicity is key (no microcontrollers, etc.). Thanks for your help!
This is to switch power between a HV reed relay and another component. Since there is some delay in the reed relay, I need the dead band so that the input to the components does not to overlap.
I first generated the 50% duty cycle with a 555 timer, and then realized that it can be made simply with a transistor based astable multivibrator. Question is - how do I reliably generate the delay (ok if only on one end). Seems like it should be possible with an extra resistor/capacitor somewhere in the circuit.
Size and simplicity is key (no microcontrollers, etc.). Thanks for your help!
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