Parallel electronic load current control method, device and electronic equipment

By combining the parallel electronic load system and the current compensation unit, the current dynamic response speed and energy saving problems of the electronic load in power supply testing are solved, and fast current adjustment and energy saving effects are achieved.

CN120512009BActive Publication Date: 2025-09-26HUNAN NEXT GENERATION INSTRUMENTAL T&C TECH CO LTD
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Patent Information

Application Number
CN202511007460.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2025-09-26
Estimated Expiration
2045-07-22

AI Technical Summary

Technical Problem

Existing electronic loads are difficult to simultaneously meet the requirements of current dynamic response speed and energy saving in power supply testing. Consumption-type electronic loads have fast current dynamic adjustment but are difficult to save energy, while feedback-type electronic loads have slow current dynamic adjustment.

Method used

A parallel electronic load system is adopted, which is set up in parallel by consuming and regenerative electronic loads, combined with a current compensation unit, and uses a DC-AC converter to generate reverse compensation current to achieve rapid current adjustment and energy saving.

Benefits of technology

The dynamic response speed of the electronic load system is improved, the current dynamic response speed requirement is met, and energy saving effect is achieved at the same time.

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Abstract

The present application discloses a parallel electronic load current control method, device, and electronic device. The method includes: obtaining a target current value; controlling a feedback electronic load to output at a first output current based on the target current value; controlling a consumption electronic load to output at a second output current based on the target current value and the first output current; when the output current of the electronic load system is the target current value, controlling the consumption electronic load to output at a third output current so that the output current of the electronic load system remains at the target current value until the output current of the feedback electronic load reaches the target current value; in response to an output end instruction, controlling the feedback electronic load to output at a fourth output current until the output current of the feedback electronic load returns to a steady-state operating current; and controlling a current compensation unit to output a reverse compensation current so that the output current of the electronic load system is consistent with a preset current output curve.
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