Advantages and disadvantages of parallel regulated power supplies
A parallel regulated power supply using a composite regulator, the circuit * big difference is that the regulator tube is changed to comply with the tube structure, so that you can get a larger β-value, but also to have a larger ICM. components can be selected using a similar method, but because of the circuit's current is large, pay attention to the selection of current-limiting resistor R1 in addition to consider the value of the resistance to take into account its power. So as not to burn the current limiting resistor when the load is disconnected.
Advantages and disadvantages of parallel regulated power supply
Advantages of parallel regulated power supply:
1 There is overload self-protection performance, the output short-circuit regulator will not be damaged.
2 In the load change is small, the voltage regulation performance is better.
3 Better adaptability to instantaneous changes.
Disadvantages of parallel regulator circuits:
1 Lower efficiency, especially at light loads, the power is almost entirely consumed in the current limiting resistor and the adjustment tube.
2 The output voltage adjustment range is very small.
3 Stability is not easy to do very high.
In fact, these advantages of parallel regulated power supply for series regulated power supply, can be achieved through the use of some special circuit. But these inherent shortcomings of parallel regulated power supply is difficult to improve, so the universal use of series regulated power supply.
Precautions for use:
First, please note that the power can not be too large, second, waterproof, dustproof, drop-proof and shock-proof need to pay attention to, third, when energised, the voltage can not be too large.
