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H-bridge is common circuit used for applications where there is a need to reverse the direction of current flow. Such application is for example: reversible motor control.
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What is the direction of current flowing through the freewheeling diodes in H-bridge if I us...
q1 and q3 will never really turn on if the voltage applied to A or B is less than the motor supply voltage, NPN transistors require that the base voltage is greater than the emitter voltage by 0.6v, l …