Power supply control system, power supply control method, and communication equipment
A power supply control and controller technology, applied in the field of power supply, can solve the problem of high production cost
Pending Publication Date: 2021-10-26
HUAWEI DIGITAL POWER TECH CO LTD
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Problems solved by technology
Each circuit breaker in the prior art is equipped with a voltage conversion unit, and the production cost is high
Method used
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Embodiment Construction
[0054] In order to better understand the present application, the working principle of the circuit breaker is firstly introduced below.
[0055] see Figure 2A , Figure 2A Schematic diagram of power supply control for circuit breaker closing. Such as Figure 2A As shown, the DC power supply 1 outputs DC power to the voltage conversion unit (such as the voltage conversion unit 1 , the voltage conversion unit 2 and the voltage conversion unit N), where N is an integer greater than 2. Figure 2A The thick black line represents the positive pole of the direct current, such as +12V, +24V, +48V or +60V, etc.; the negative pole of the direct current is represented by a thin black line, such as -12V, -24V, -48V or -60V. The thin black wire can also be a reference ground wire, which is used to transmit 0V voltage. The magnitude of the voltage of this direct current is the difference between the positive pole and the negative pole. The voltage conversion unit can output a positive...
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The invention provides a power supply control system, a power supply control method and communication equipment. The power supply control system comprises a voltage conversion unit, a first change-over switch unit and a second change-over switch unit; the input end of the voltage conversion unit is coupled with a first direct-current power supply, and the output end of the voltage conversion unit is coupled with the input end of the first change-over switch unit and the input end of the second change-over switch unit; the output end of the first change-over switch unit is coupled with the control end of a first circuit breaker, the input end of the first circuit breaker is coupled with a second direct-current power supply, and the output end of the first circuit breaker is coupled with a first load; and the output end of the second change-over switch unit is coupled with the control end of a second circuit breaker, the input end of the second circuit breaker is coupled with a third direct-current power supply, and the output end of the second circuit breaker is coupled with a second load. According to the application, the load can be controlled to be connected or disconnected with the direct-current power supply only by arranging one voltage conversion unit and the change-over switch units corresponding to the circuit breakers, and the production cost is low.
Description
technical field [0001] The present application relates to the technical field of power supply, in particular to a power supply control system, a power supply control method, and a communication device. Background technique [0002] The power supply control system in communication equipment needs to have the function of remotely controlling the load to connect or disconnect the power supply. Existing technologies such as figure 1 In the power supply control system shown, each circuit breaker is correspondingly provided with a voltage conversion unit, wherein each circuit breaker has a built-in motor. The voltage conversion unit can output positive voltage or negative voltage. When the voltage conversion unit outputs positive voltage, the motor rotates forward, and the circuit breaker where the motor is located is closed; when the voltage conversion unit outputs negative voltage, the motor rotates reversely, then The circuit breaker where the motor is located is tripped. In...
Claims
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IPC IPC(8): H02J9/06H02J1/10H02J13/00H02H7/26
CPCH02J9/061H02J9/068H02J1/10H02J13/00004H02H7/268Y02B90/20Y04S20/12
Inventor 马东海李子毫
Owner HUAWEI DIGITAL POWER TECH CO LTD