Auxiliary power system, control circuit board and electrically controlled product
By using a microcontroller unit and push-pull circuit in the electronic control product to power the transformer of the three-phase full-bridge circuit, the structure of the drive power supply system is simplified, the cost is reduced, the problem of high cost of the power supply topology of the drive part in the prior art is solved, and low-cost drive power output is achieved.
CN224289642UActive Publication Date: 2026-05-26HEFEI SUNSHINE POWER TECH CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI SUNSHINE POWER TECH CO LTD
- Filing Date
- 2025-03-17
- Publication Date
- 2026-05-26
Smart Images
Figure CN224289642U_ABST
Abstract
This application relates to an auxiliary power supply system, a control circuit board, and an electronic control product. The auxiliary power supply system includes a microcontroller unit, an upper bridge push-pull circuit, an upper bridge transformer, a lower bridge push-pull circuit, and a lower bridge transformer. The input terminal of the upper bridge push-pull circuit is connected to the microcontroller unit, and the output terminal of the upper bridge push-pull circuit is connected to the primary circuit of the upper bridge transformer. The secondary circuit of the upper bridge transformer is connected to the three-phase upper arms of a three-phase full-bridge circuit via a driver chip. The input terminal of the lower bridge push-pull circuit is connected to the microcontroller unit, and the output terminal of the lower bridge push-pull circuit is connected to the primary circuit of the lower bridge transformer. The secondary circuit of the lower bridge transformer is connected to the three-phase lower arms of the three-phase full-bridge circuit via a driver chip. Thus, a low-cost auxiliary power supply system, control circuit board, and electronic control product are provided.
Need to check novelty before this filing date? Find Prior Art