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Power supply circuit and its operation method for automatically matching the number of parallel groups of loads

A technology of automatic matching and power supply circuits, applied in the direction of electrical components, adjusting electric variables, output power conversion devices, etc., can solve the problems of reducing production costs, without mentioning the number of parallel groups of automatic matching loads, etc., to achieve the effect of low cost

Active Publication Date: 2018-09-18
深圳茂硕电子科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] None of the above patents mentioned how to automatically match the number of load parallel groups, so it is necessary to design a power supply circuit to automatically match the number of load parallel groups to reduce production costs

Method used

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  • Power supply circuit and its operation method for automatically matching the number of parallel groups of loads
  • Power supply circuit and its operation method for automatically matching the number of parallel groups of loads

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Embodiment Construction

[0029] In order to fully understand the technical content of the present invention, the technical solution of the present invention will be further introduced and illustrated below in conjunction with specific embodiments, but it is not limited thereto.

[0030] Such as Figure 1~2 In the specific embodiment shown, the power supply circuit that automatically matches the number of parallel load groups provided in this embodiment can be used in the power supply circuit of a product, such as a charging circuit with multiple output groups, to automatically match the number of parallel load groups and reduce production costs. .

[0031] The power supply circuit that automatically matches the number of parallel load groups includes a current sampling circuit, a load feedback circuit, and a power converter 10. The power converter 10 has multiple load output terminals, and the current sampling circuit is used to collect the output of the power converter 10 The current signal is used as th...

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Abstract

The invention relates to a power supply circuit for automatically matching the load parallel set number and an operation method thereof. The power supply circuit comprises a current sampling circuit, a load feedback circuit and a power converter, wherein the power converter is provided with multiple load output ends, the current sampling circuit is used for acquiring a current signal outputted by the power converter, taking the signal as an input signal of the load feedback module and being separately connected with the power converter and the load feedback circuit, and the load feedback circuit is used for determining whether a corresponding load channel exists for the input signal, sending the determination result to the power converter and being connected with the power converter. According to the power source circuit, a channel output current value of the power converter is acquired, whether the load channel exists is determined by the load feedback circuit, and the acquired signal is transmitted to the power converter after determination is carried out by the load feedback circuit, adjustment on the output current of the power converter is realized, the output current and the output power are adjusted in a grade mode, high precision is realized, the power supply circuit is convenient for user to realize classification use, and the power supply circuit realizes relatively low cost.

Description

Technical field [0001] The invention relates to a switching power supply, and more specifically to a power supply circuit that automatically matches the number of parallel load groups and an operation method of the power supply circuit. Background technique [0002] In today's electronic equipment, in order to meet the power supply requirements of different electronic devices, multiple power supplies are generally selected. [0003] At present, the usual practice for multiple output LED power supplies is to equip each output with a set of DC-DC converters. Each output is equipped with a set of DC-DC converters. This structure has good independence for each channel, but requires multiple converters and high cost. [0004] Search for related patents on the soopat website using the keywords "matched load in parallel" and "circuit". There are 105 related patents in total. Among them, Chinese patent 201210545511.2 discloses a 220V dimmable constant current drive high voltage LED circuit,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/156
CPCH02M3/156
Inventor 王华轶邓勇
Owner 深圳茂硕电子科技有限公司
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