Question

A single phase half wave converter in is operated from a 120 V 60 Hz supply and a freewheeling diode is connected across the load. the load consists of series connected resistance R= 10 ohm inductance L= 5mH and battery E=20V. Express the instantaneous output voltage in fourirer series and determine the rms value of the lowest order output harmonic current.

Answer #1

A full-wave rectifier has a 120 V rms, 60 Hz ac source. The load
is a series inductance, resistance and dc voltage source, with L =
100 mH, R = 10 Ω, and Vdc = 50 V.
a). Determine an expression for load current.
b). Determine the power absorbed by the dc voltage source.
c). Determine the power absorbed by the resistance.
d). Determine the power factor of the source.

If the available power source is a single-phase, 60 Hz, ac
supply and a separately excited DC motor is to be fed from this
source, configure possible drive circuits for:
i) One-Quadrant Operation,
ii) Two- Quadrant Operation
iii) Four- Quadrant Operation
Hints: For one-quadrant operation, the motor control circuit is a
half-wave controlled rectifier or a semicontrolled converter and
the driver for the separately excited is a semi-controlled
converter with a freewheeling diode using the ac supply
source.
For two-quadrant...

A single-phase full-bridge inverter supplies a load of 10 W in
series with an inductance of 31.8 mH. The inverter is supplied by a
380 VDC source.
(a) Sketch the inverter circuit as described above.
(b) Calculate the rms value of the fundamental (n = 1) of the
inverter output voltage assuming it is a square-wave.
(c) Assuming a quasi square-wave output voltage waveform with a
delay angle of 45°, calculate the rms value of the fundamental and
the two...

It is required to connect the Electric Power Company - [120 V
(AC), frequency 60 Hz] with a circuit that provides a charge of 18
V (DC) with a maximum ripple percentage of 10%. The charge consumes
on average 400*10^-3 Ampere. The diodes used have a decreace of 0.8
V.
A) Design a rectifier of half wave that complies with the
requirements.
B) Design a rectifier of complete wave using diode bridges for
the given problem.
[The Output Voltage is...

It is required to connect the Electric Power Company - [120 V
(AC), frequency 60 Hz] with a circuit that provides a charge of 18
V (DC) with a maximum ripple percentage of 10%. The charge consumes
on average 400*10^-3 Ampere. The diodes used have a decreace of 0.8
V.
A) Design a rectifier of half wave that complies with the
requirements. [Output Voltage: Provides a charge of 18 V
(DC) with a maximum ripple percentage of 10%.]
B) Design a...

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