Integrated control circuit for LED stroboflash and explosion flash

By designing an integrated control circuit, using the MCU module to generate PWM control signals and convert them into switch control signals through the LED signal control module, the complex and cost-effective circuit of the existing LED fill light device is solved, and efficient and stable light source control effect is achieved to meet the strobe and flash needs in different application scenarios.

CN119729943AActive Publication Date: 2025-03-28杭州方千科技有限公司
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Patent Information

Application Number
CN202510229847.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-03-28
Estimated Expiration
2045-02-28

AI Technical Summary

Technical Problem

When existing LED fill light devices realize strobe and blast functions, the circuit design is complex, the number of components is large, the cost is high, and the brightness adjustment range is limited, making it difficult to meet the needs of high-quality image capture.

Method used

An integrated control circuit is designed to obtain the strobe or blink pulse signals emitted by the camera through the MCU module, generate the corresponding PWM control signal, and convert it into a switching control signal through the LED signal control module to control the light and off state and brightness of the LED lamp, so as to realize that strobe and blink share a power supply power supply and a signal control channel.

Benefits of technology

The control logic is simplified, the number of components is reduced, the cost is reduced, the flexibility and response speed of the control circuit are improved, and the efficient and stable light source control effect is achieved to meet the strobe and flash needs in different application scenarios.

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Abstract

The invention discloses an integrated control circuit for LED stroboflash and explosion flash, and relates to the field of LED stroboflash and explosion flash control. In the circuit, an MCU (Microprogrammed Control Unit) module plays a core role: in a stroboscopic mode, the MCU module sequentially acquires stroboscopic pulse signals sent by a camera based on a set frequency and generates corresponding stroboscopic PWM (Pulse Width Modulation) control signals according to duty ratios of the signals; in the explosion flashing mode, corresponding explosion flashing PWM control signals are generated according to explosion flashing pulse signals with set pulse width sent by the camera, and then the LED signal control module receives the PWM control signals and converts the PWM control signals into switch control signals, so that the on-off state and the brightness of an LED lamp in the LED light source module are accurately controlled; according to the design, the circuit structure is simplified, the flexibility and the response speed of the control circuit are improved, the efficient and stable light source control effect is achieved, and the stroboflash and burst flash requirements in different application scenes can be met through a single circuit.
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