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  • Simple circuit, the DC motor on / off control

    <cut>This is a simple circuit, using the On / Off 12V DC motor with TTL switch control signal input. The BD139 should be installed with heat sink. Light flasher circuit </cut> VN:F [1.6.9_936]please wait…Rating: 10.0/10 (2 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • Discrete component motor direction controller

    This circuit can control a small DC motor, like the one in a tape recorder. VN:F [1.6.9_936]please wait…Rating: 5.5/10 (2 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • Super simple stepper motor controller

    The circuit shown above can be used to control a unipolar stepper motor which has FOUR coils (I’ve swiped it off an old fax machine). VN:F [1.6.9_936]please wait…Rating: 8.0/10 (1 vote cast)VN:F [1.6.9_936]Rating: +1 (from 1 vote)

  • Discrete component motor direction controller

    This circuit can control a small DC motor, like the one in a tape recorder. VN:F [1.6.9_936]please wait…Rating: 0.0/10 (0 votes cast)VN:F [1.6.9_936]Rating: 0 (from 0 votes)

  • Automatic Speed Controller for fans & Coolers

    During summer nights, the temperature is initially quite high. As time passes, the temperature starts dropping. Also, after a person falls asleep, the metabolic rate of one’s body decreases. VN:F [1.6.9_936]please wait…Rating: 4.0/10 (1 vote cast)VN:F [1.6.9_936]Rating: +1 (from 1 vote)