Need of simple circuit that can turn transistor on for 10 sec and turn off for 10 sec PLEASE HELP!!

pmolsen said:

Connect the 555 output to the gates of two mosfets, a P-channel and an N-channel. See **broken link removed** and search for "Complementary MOSFET Motor Controller" (last topic on the page),

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AnalogKid said:

What are the voltage and current ratings for the motor?

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AnalogKid said:

IF the motor current requirement is below 200 mA.

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AnalogKid said:

That circuit requires bipolar (+V and -V) power supplies. In post #1 there is a single power source, so you would need a full H bridge.

This is why I asked about the motor power requirements. A 555 makes a good-enough half-bridge driver, so two 555's will do the entire circuit - IF IF IF the motor current requirement is below 200 mA.

ak

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Dzoro said:

12v current around 300-400 mA

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ronsimpson said:

The start up current will be 2A. (don't know but much higher than 0.4A)
If you reverse the voltage on the motor before it stops the current will be higher yet.
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philomel said:

You can do this with a two stage Multi-vibrator circuit. Each mmv triggers the other.

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