Parallel Regulated Power Supply Advantages and Disadvantages
A parallel regulated power supply using composite adjustment tubes. The major difference in the circuit is that the adjustment tubes are changed to conform to the tube structure, which can obtain a larger β value and a larger ICM. A similar method can be used for component selection, but due to the large current of this circuit, it is important to consider not only the resistance value but also the power of the current limiting resistor R1 when selecting it. To avoid burning out the current limiting resistor when the load is disconnected.
Advantages and disadvantages of parallel stabilized power supply
The advantages of parallel stabilized power supply:
1. It has overload self-protection performance, and the adjustment tube will not be damaged when the output short circuit occurs.
When the load changes, the voltage stabilization performance is relatively good.
The adaptability to instantaneous changes is good.
Disadvantages of parallel voltage regulator circuit:
The efficiency is relatively low, especially under light loads, where almost all electrical energy is consumed in the current limiting resistor and regulating tube.
The output voltage regulation range is very small.
It is not easy to achieve high stability.
In fact, these advantages of parallel stabilized power supply can be achieved by using some special circuits for series stabilized power supply. However, the inherent drawbacks of parallel stabilized power supplies are difficult to improve, so series stabilized power supplies are commonly used.
Precautions for use:
Firstly, please note that the power should not be too high. Secondly, attention should be paid to waterproofing, dust prevention, and shock resistance. Thirdly, the voltage should not be too high when powered on.
