Adaptive discharge control method and circuit

一种控制方法、控制电路的技术，应用在电气元件等方向，能够解决效率影响等问题

Pending Publication Date: 2020-04-24
SHENZHEN SUNMOON MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an adaptive discharge control circuit and method, aiming to solve the problem that the efficiency of the above-mentioned technical solutions is affected

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  • Adaptive discharge control method and circuit
  • Adaptive discharge control method and circuit
  • Adaptive discharge control method and circuit

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Embodiment Construction

[0048] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0049] In some processes described in the specification and claims of the present invention and the above-mentioned drawings, a plurality of operations appearing in a specific order are contained, but it should be clearly understood that these operations may not be performed in the order in which they appear herein Execution or parallel execution, the serial numbers of the operations, such as 101, 102, etc., are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. Additionally, these processes can include more or fewer operations, and these operations can be performed sequentially or in parallel. It should be n...

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Abstract

The embodiment of the invention discloses an adaptive discharge control method and circuit. The method comprises the following steps: obtaining a peak representation voltage of a wire network, the peak value representation voltage being a voltage value, representing a peak state, in the wire network representation voltages which are detected in a preset time and are scaled in proportion to the voltage of the wire network; generating a switch control signal according to the peak representation voltage; performing switch control according to the switch control signal so as to generate a discharge signal; and carrying out discharge control on a light source module according to the discharge signal so as to connect or disconnect a loop of a silicon controlled rectifier in the light source module. According to the invention, the discharge module is opened and closed according to the voltage of the wire network, so that the dimming function of the light source module is achieved, and the reduction of the system efficiency caused by the normal opening of a discharge current path is avoided.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of power electronics, in particular to an adaptive bleeding control circuit and method. Background technique [0002] Thyristor dimming is a commonly used dimming method. The thyristor dimmer adopts the phase control method to realize dimming, that is, the conduction of the thyristor dimmer is controlled every half cycle of the sine wave to obtain the same conduction phase angle. By adjusting the chopping phase of the thyristor dimmer, the conduction phase angle can be changed to realize dimming. [0003] In the control system of the electronic circuit, when the thyristor is connected, the minimum holding current is required when the thyristor is turned on. If the system current is less than the minimum holding current, the thyristor will be turned off. In the optical field, especially the LED dimming field that is connected to the thyristor dimming, when the line network voltage is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/30H05B45/10
CPCH05B45/30H05B45/14H05B45/34H05B45/3575
Inventor 郭伟峰郭东剑李照华
Owner SHENZHEN SUNMOON MICROELECTRONICS
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