Free Simple Circuit Diagram
In the figure a, the capacitor is slowly charged through resistor R and finally after reaching the base-emitter voltage of PNP transistor, the PNP transistor begin conducting and activate the NPN transistor. The activation of NPN transistor is positively fed back to the PNP transistor so the transistors short the capacitor C to ground, discharging its voltage until zero in […]
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The other name of split phase motor is an induction start/induction run motor. This motor has two windings : a start and a main winding. The start winding is made with fewer turns and smaller gauge, relative to the main winding to create more resistance, thus the start winding’s field is put in to the different angle than that of […]
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The single-phase induction motor is not self-starting device. The main winding carries an alternating current when the motor is connected to a single-phase power supply. A pulsating magnetic field will be produced by this current. The rotor is energized due to induction. The torque necessary for the motor rotation is not generated as the main magnetic field is pulsating. This […]
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A very long time constant is provided by R1 and C1. C1 discharges and the near zero voltage at its positive lead is applied to the high impedance inputs of the four gates of IC1 wired in parallel when P2 is momentarily closed. The battery voltage is available at Q1 Emitter since the four paralleled gate outputs of the IC […]
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