Transformer isolated drive circuit
By setting a discharge circuit in the transformer isolation drive circuit, the switching unit is turned off quickly, the problem of false turn-on is solved, and the stability and reliability of the circuit are improved.
CN224319242UActive Publication Date: 2026-06-02SHENZHEN BUSBAR SCI TECH DEV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BUSBAR SCI TECH DEV
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-02
Smart Images
Figure CN224319242U_ABST
Abstract
The embodiment of the present application provides a transformer isolation driving circuit, comprising: a transformer, comprising a primary coil, a first secondary coil and a second secondary coil; a first switch unit; a first discharge circuit, used for discharging a control end of the first switch unit, the first discharge circuit comprising a second switch unit; a third switch unit; a second discharge circuit, used for discharging a control end of the third switch unit, the second discharge circuit comprising a fourth switch unit; the conduction state of the first switch unit is opposite to the conduction state of the third switch unit, and the first switch unit and the third switch unit are used for outputting a driving signal. The transformer isolation driving circuit of the embodiment of the present application can ensure that the first switch unit and the third switch unit are quickly turned off, avoid the mis-conduction of the first switch unit and the third switch unit, and thus improve the stability of the driving circuit.
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