Servo control with TTL

I need help understanding why I can't use a 74LS00 to control the PWM signal to a servo.

by iotaprime
December 23, 2023

If a servo type PWM signal is inverted will it still work? I'll try a non-inverting gate.

by iotaprime
December 23, 2023

Yup. I wasn't thinking. Servos won't operate with inverted signal.

by iotaprime
December 23, 2023

1 Answer

Answer by Wons1946

The 74LS00 is a basic logic gate, not a dedicated PWM generator. It can't produce the specific pulse frequency and duty cycle required for servo control. a small world cup

+1 vote
by Wons1946
January 21, 2024

Yes. But to switch on and off a PWM channel, a 7400 NAND gate fails because it inverts. A 7408 is required.

by iotaprime
January 22, 2024

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