Soft start control circuit, method and device of lamp module and power-assisted lamp
By periodically controlling the switching transistors through a soft-start control circuit, and utilizing the inductive characteristics of the cable to achieve intermittent charging, the problem of inrush current when the power-assisted bicycle light module is turned on is solved, thus improving control reliability and efficiency.
CN122093983APending Publication Date: 2026-05-26WUHAN TTIUM MOTOR TECH CO LTD
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Patent Information
- Application Number
- CN202411708628.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
The surge current generated when the power-assisted bicycle light module is turned on far exceeds the current stress that the electronic switch tube can withstand, resulting in a decrease in control reliability.
Method used
A soft-start control circuit is adopted, which periodically controls the switching transistor to turn on and off through the main control module, ensuring that the switching transistor is charged when the inductor current is not stable. The inductive characteristics of the cable are used to achieve intermittent charging and avoid the generation of inrush current.
Benefits of technology
This effectively avoids the generation of inrush current, ensures the control reliability of the lamp module, and improves the turn-on efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a soft start control circuit, method and device of a lamp module and a power-assisted lamp, and relates to the technical field of power-assisted lamp control. The switching tube circuit comprises at least one switching tube, the input end of the switching tube circuit is connected with the switching tube driving circuit, and the output end of the switching tube circuit is connected with the control end of the lamp module; the output end of the main control module is connected with the switch tube driving circuit, and the main control module is used for receiving the turn-on signal of the lamp module and outputting a control signal, so that the switch tube driving circuit periodically controls the switch-on and switch-off of a switch tube in the switch tube circuit according to the control signal; and the duration of the control signal output by the main control module reaches the target time. The control reliability of the lamp module can be improved.
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