Filter capacitors smooth out the pulsating DC. Without the capacitors, the pulsating DC drops to zero at the AC crossing point, unless it is a three phase rectifier. Sometimes, that is sufficient. Sometimes, they are followed up with a regulator circuit that further stabilizes the DC.
Filters are used to remove, or reduce, the ripple in the voltage waveform that would otherwise be present if the output was taken directly from a rectifier.
phase controlled RECTIFIER circuit used Natural Commutation......
A block diagram of SMPS has a main filter, primary rectifier, and power switch. It also has an output transformer, secondary rectifier, smoothing circuit, and controller.
to convert pulsed AC to something approximating DC.
We don't use an 'instrument' to covert a.c. to d.c.. Rather, we use a circuit called a 'rectifier'.
A step down transformer is used in rectifier circuits so as to bring the rectified voltage to within a reasonable value of the desired output voltage. It is a design decision, based on a compromise between various aspects of the filter and/or regulator that might follow the rectifier.
use as coupling in some circuts and and as a filter in rectifier circuit. use as DC current blocking.
phase controlled RECTIFIER circuit used Natural Commutation......
A block diagram of SMPS has a main filter, primary rectifier, and power switch. It also has an output transformer, secondary rectifier, smoothing circuit, and controller.
To smooth the output of the pulsating DC.
A circuit that doesn't require a lot of filtering such as a charging circuit for a battery. In a single capacitor filter, the sine wave or AC doesn't get completely eliminated.
what is the function of transformer in the half wave rectifier circuit
They both have the same current.
to convert pulsed AC to something approximating DC.
put capacitor parallel on load (peak rectifier) or add low frequency pass filter (composed of L & C) to remove AC components
We don't use an 'instrument' to covert a.c. to d.c.. Rather, we use a circuit called a 'rectifier'.
less
A step down transformer is used in rectifier circuits so as to bring the rectified voltage to within a reasonable value of the desired output voltage. It is a design decision, based on a compromise between various aspects of the filter and/or regulator that might follow the rectifier.