What is Surge Current? – Definition and Workings: Before switching on of power supply, the filter capacitor is uncharged . At the instant the power supply is switched on, the uncharged capacitor behaves like a short, and therefore, the initial … (Read More)

What is Bleeder Resistor? – Working and Its Functions: The operation of an inductor filter is based on the fact that a minimum current flows through it at all times. To provide flow of this minimum current at all times through … (Read More)

Voltage Multipliers – Voltage Doublers, Triplers and Quadruplers: Voltage multipliers is a modified capacitor filter circuit that delivers a dc voltage twice or more times of the peak value (amplitude) of the input ac voltage. Such power supplies are used for … (Read More)

Three Phase Rectifiers: Three-Phase Half-Wave Rectifier : Figure 9.11 illustrates a circuit for a 3-phase half-wave rectifier. The three diodes are connected to the three phases of a 3-phase transformer star-connected secondary. Neutral point N of the secondary forms the negative … (Read More)