The load voltage of a chopper can be controlled by varying the

Related MCQs

• In a step down chopper, if Vs = 100 V and the chopper is operated at a duty cycle of 75 %. Find the output voltage.
• Find the expression for output voltage for a step-up chopper, assume linear variation of load current and α as the duty cycle.
• Find the output voltage for a step-up chopper when it is operated at a duty cycle of 50 % and Vs = 240 V.
• The average value of the output voltage in a step - down dc chopper is given by
• In a load commutated DC - DC chopper, the capacitor has a
• In a fully controlled bridge converter feeding a resistive load the waveshapes of output voltage and output current
• In the method of phase control, the phase relationship between ___ & ___ is controlled by varying the firing angle
• In a full wave converter (M - 2 connection) feeding an RLE load, the peak thyristor current is 15 A. For fully controlled bridge circuit and same load current, the peak thyristor current will be
• A single-phase voltage controller, using one SCR in anti parallel with a diode, feeds a load R and Vs = 230 V. For a firing angel of 90° for the SCR, the PMMC voltage connected across R would read
• In a 3 phase full wave regulator feeding a star connected resistance load the input voltage is 400 V line to line. The firing angle is 160°. The line to line output voltage would be