Answer / rajneesh

Free wheeling diodes are used whenever inductive loads are
switched off by silicon components: in relay drivers,
H-bridge motor drivers, and so on. A switched-mode power
supply also exploits this effect, but the energy is not
dissipated to heat but used for pumping additional charge
through the load.
this is the reason......

Answer / ranjith

In order to avoid the ripples in the circuit

Answer / karpagam

Freewheeling diode improves the input power factor by avoiding voltage reversal.This diode safely dissipates the energy stored in the inductive load when the thyristor is turned off.

Answer / himanshu srivastava

During the positive half cycle inductor charge as same as the polarity of the dc output voltage. When the negative half cycle started, the inductor will act as a source and it will make the freewheeling diode forward bias. Hence the output voltage become zero and the inductor current will gradually reduce. So that in the output, the current will be there even the output voltage is zero.

Answer / sachin kumar airan

avoid from nagative voltages at the output.to improvement
of powerfactor.to avoid the current flow in reverse
direction.

Answer / mrunali

As name indicates the free wheeling diod gives free moment
to the current through the inductor while discharging mode
of operation. it reducess the voltage loss in the inductive
load.

Does frequency change with increasing voltage i.e 220v to 11kv? explain if not?

6 Answers  

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0 Answers  

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Define settling time.

0 Answers  

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What does quality factor depend on in resonance?

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0 Answers