Power Supplies and Diode Rectifiers Flashcards
Power supplies are used to convert ____ into _____.
Power supplies are used to convert AC power into smooth DC power.
What are the five sections or circuits of a power supply?
Rrequired:
- Input,
- Rectifier
- Filter
Optional:
- regulator
- protection
Which section in the power supply is used to step UP or step DOWN the AC input voltage to a level required for the power supply output?
This section also has a Power Transformers which perform the transfer of energy without any change in frequency.
Input section
Which section in the power supply converts the AC into pulsating DC?
This section also contains one, two, or four diodes to convert the AC into pulsating DC.
Rectifier section
Which section changes the pulsating DC to smooth DC?
Filter section
There are many types of filter circuits. They all operate on the characteristics of _______ to changing voltage levels.
There are many types of filter circuits. They all operate on the characteristics of reactive components to changing voltage levels.
The smooth DC output of the filter is applied to the optional ______section. This section maintains the output voltage at a constant level despite changes in load current with the use of a special type of diode (Zener diode)
Regulator section
Which section prevents damage to the power supply if the load shorts or becomes faulted?
This section samples the output current and then either limits or disables the power supply output and consists of either a Silicon Controlled Rectifier (SCR) or a transistor
The protection section
What are the three types of rectifier circuits?
Half-Wave Rectifier - one diode
Full-Wave Rectifier - two diodes
Bridge Rectifier - four diodes
What type of rectifier is this circuit?
Full-wave
What type of rectifier is this circuit?
Half-wave
