Load power supply system

Abstract

This invention discloses a load power supply system comprising a load device, a first power supply device, and a second power supply device, wherein the first power supply device is connected in parallel with the second power supply device. The first power supply device includes a first power supply module and a first detection and correction module, providing a first output power and generating a first output signal. The second power supply device includes a second power supply module and a second detection and correction module, providing a second output power and generating a second output signal. The first detection and correction module adjusts the multiplier of the first output signal so that the adjusted first output signal is identical to the second output signal, allowing the first and second power supply devices, with different output powers, to be used in a matched manner.

Claims

1. A load power supply system, comprising: A load device; A first power supply device is electrically connected to the load device and has a first power supply module and a first detection and correction module. The first power supply module has a first output power, and the first detection and correction module is connected to the first power supply module and is used to obtain a first output signal corresponding to the first output power. The device includes a second power supply unit electrically connected to the load device and connected in parallel with the first power supply unit. The second power supply unit has a second power supply module and a second detection and correction module. The second power supply module has a second output power. The second power supply module is connected to the second detection and correction module and is used to obtain a second output signal corresponding to the second output power. The first output power is different from the second output power. The first detection and correction module is used to adjust the multiplier of the first output signal so that the first output signal after adjustment is the same as the second output signal, thereby allowing the first power supply module to output the first output power and the second power supply module to output the second output power.

2. The load power supply system as described in claim 1, wherein, The first detection and correction module includes a first signal acquisition circuit, a first compensation unit, and a first feedback circuit. The first signal acquisition circuit is connected to the load device and the first power supply module to generate the first output signal. The first compensation unit is connected to the first power supply module, the first signal acquisition circuit, and the first feedback circuit to correct the magnification of the first output signal. The first feedback circuit is connected to the load device, the first power supply module, and the second detection and correction module to feedback the first output signal to the first power supply module.

3. The load power supply system as described in claim 2, wherein, The first compensation unit includes a first correction circuit and a first uncorrected circuit. The first correction circuit is connected in parallel to the first uncorrected circuit. The first correction circuit includes a first correction switching element and a first correction circuit connected in series with the first correction switching element. The first correction circuit has a multiplier for the first output signal. The first uncorrected circuit has a first uncorrected switching element. The first power supply module is used to control the first correction switching element and the first uncorrected switching element. When the first output power is different from the second output power, the first uncorrected switching element of the first uncorrected circuit is turned off, and the first correction switching element of the first correction circuit is turned on, so that the first output signal is adjusted according to the multiplier of the first output signal of the first correction circuit. When the first output power is the same as the second output power, the first correction switching element of the first correction circuit is turned off, and the first uncorrected switching element of the first uncorrected circuit is turned on, without changing the ratio of the first output signal.

4. The load power supply system as described in claim 3, wherein, The first correction circuit includes an amplifier.

5. The load power supply system as described in claim 1, wherein, The second detection and correction module is used to adjust the magnification of the second output signal so that the second output signal with the adjusted magnification is the same as the first output signal, so that the first power supply module outputs the first output power and the second power supply module outputs the second output power.

6. The load power supply system as described in claim 5, wherein, The second detection and correction module includes a second signal acquisition circuit, a second compensation unit, and a second feedback circuit. The second signal acquisition circuit is connected to the load device and the second power supply module to generate the second output signal. The second compensation unit is connected to the second power supply module, the second signal acquisition circuit, and the second feedback circuit to correct the magnification of the second output signal. The second feedback circuit is connected to the load device, the second power supply module, and the first detection and correction module to feedback the second output signal to the second power supply module.

7. The load power supply system as described in claim 6, wherein, The second compensation unit includes a second correction circuit and a second uncorrected circuit. The second correction circuit is connected in parallel to the second uncorrected circuit. The second correction circuit includes a second correction switching element and a second correction circuit connected in series with the second correction switching element. The second correction circuit has a multiplier for the second output signal. The second uncorrected circuit has a second uncorrected switching element. The second power supply module is used to control the second correction switching element and the second uncorrected switching element. When the first output power is different from the second output power, the second uncorrected switching element of the second uncorrected circuit is turned off, and the second correction switching element of the second correction circuit is turned on, so that the second output signal is adjusted according to the multiplier of the second output signal of the second correction circuit. When the first output power is the same as the second output power, the second correction switching element of the second correction circuit is turned off, and the second uncorrected switching element of the second uncorrected circuit is turned on, without changing the ratio of the second output signal.

8. The load power supply system as described in claim 7, wherein, The second correction circuit includes an amplifier.

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