A circuit device for realizing hot plugging of power supply
A circuit device, hot-swap technology, applied in the field of power electronics, can solve the problem of inability to realize bidirectional flow of power, and achieve the effects of improving reliability, reducing system costs, and expanding the scope of application
Active Publication Date: 2020-11-03
SHANGHAI ELECTRIC DISTRIBUTED ENERGY TECH CO LTD
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Problems solved by technology
[0005] However, the existing problems in the prior art are: 1) hot swapping is controlled by the control chip, and its reliability is restricted by the reliability of the control chip; two-way flow
Method used
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Embodiment Construction
[0024] figure 1 It is a schematic diagram of a circuit device for implementing power supply hot swapping according to a preferred embodiment of the present invention. figure 2 show figure 1 Another equivalent circuit of .
[0025] Such as figure 1 and figure 2 As shown, the circuit device for implementing power supply hot swap according to the preferred embodiment of the present invention includes a current limiting circuit, a relay module, a control circuit and a signal circuit. Among them, the signal loop can be an optocoupler O, such as figure 1 and figure 2 shown. It should be noted that in some embodiments, the signal loop for controlling the auxiliary power circuit can be removed. Moreover, the structure composed of the regulator tube D1, the second capacitor C2 and the sixth resistor R6 in the control loop is used to control the closing time of the relay K and protect the transistor Q; in fact, in some embodiments, the control The structure composed of the re...
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A hot plug implementation circuit device of a power supply comprises a relay, a triode, a first capacitor, a first resistor, a second resistor, a third resistor, a sixth resistor and a power supply connector, wherein a positive electrode of the power supply connector is connected to a first end of the first resistor used as a current limiting resistor and is also connected to a normally-open contact of a relay, the first resistor and the normally-open contact of the relay are connected in parallel, a second end of the first resistor is connected with a first end of the first capacitor, a firstend of a coil of the relay, a first end of the third resistor and a first end of the second resistor, a second end of the first capacitor is connected with a second end of the sixth resistor and an emitter of the triode, a second end of the second resistor is connected with a first end of the sixth resistor and a base of the triode, a second end of the coil of the relay is connected with a collector of the triode, a second end of the third resistor is connected with the collector of the triode, and a negative electrode of the power supply connector is connected to the emitter of the triode.
Description
technical field [0001] The invention relates to the field of power electronics, in particular to a circuit device for realizing hot plugging of a power supply. Background technique [0002] With the development and wide application of switching power supply technology, higher requirements are put forward for the power output of the power supply, that is, the stability. In high-power and high-reliability applications, simply increasing the output power of a single power supply not only increases the difficulty of design, but also when the power supply fails and cannot guarantee output stability, the entire system will not work and may even cause other parts of the system to be damaged or damaged. Burned, it is difficult to guarantee the reliability and security of the system. A distributed multi-power supply system in which multiple power modules with smaller power are operated in parallel can better solve the problem of reliability and safety of a single power supply. And ...
Claims
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IPC IPC(8): H02M1/32
CPCH02M1/32
Inventor 王凯周春杜志超黄生
Owner SHANGHAI ELECTRIC DISTRIBUTED ENERGY TECH CO LTD