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Constant current device and heat dispersion module thereof

A technology of constant current and current, which is applied in the direction of circuit devices, cooling/heating devices of lighting devices, lighting devices, etc., and can solve the problems of large power consumption and heat dissipation difficulties of the constant current unit 93

Active Publication Date: 2020-03-10
CHICONY POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the input voltage range of the current stabilizing unit 93 is very wide, the power consumption of the circuit elements will also be distributed in a wide range
In order to make the light-emitting unit 92 safe to use, it is generally designed in consideration of the maximum component power consumption. However, this method will cause the small-sized current-stabilizing unit 93 to bear a large power consumption, making it difficult to dissipate heat.

Method used

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  • Constant current device and heat dispersion module thereof
  • Constant current device and heat dispersion module thereof
  • Constant current device and heat dispersion module thereof

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Embodiment Construction

[0062] In order to enable your review committee members to better understand the technical content of the present invention, the preferred specific embodiments are described as follows.

[0063] Please refer to the following figure 2 It is a schematic diagram of the structure of the constant current device according to the first embodiment of the present invention. It should be noted that although the following description uses the terms "first", "second" and so on to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first heat distribution module could be referred to as a second heat distribution module, and, similarly, a second heat distribution module could be referred to as a first heat distribution module without departing from the scope of the various described embodiments. Decentralized modules. Both the first heat distribution module and the second heat d...

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PUM

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Abstract

A constant current device and a heat dispersion module thereof are disclosed. The constant current device is used for stabilizing a current of a light emitting unit and comprises a current stabilizingunit and the heat dissipation module. The heat dispersion module includes an impedance element, a detection control unit, a switch unit, and a feedback unit. The detection control unit is used to detect a node voltage value between the light emitting unit and a current regulating unit. The switch unit switches between an on-state and an open state; when the switch unit is in the on-state, a current of the current regulating unit is conducted to a ground via the switch unit; when the switch unit is in the open state, the current of the current regulating unit is conducted to the ground via theimpedance element. The feedback unit causes the switching unit to exhibit hysteresis when changing between the on-state and the open state.

Description

technical field [0001] The present invention relates to a constant current device and its heat dissipating module, in particular to a constant current device and its heat dissipating module that can share power dissipation by using impedance. Background technique [0002] With the development of science and technology, a linear constant current regulator (CCR) is widely used in series with LEDs in current lighting devices to achieve a fixed brightness output. just like figure 1 as shown, figure 1 It is a structural schematic diagram of a constant current device in the prior art. The prior art constant current device 90 includes a power input terminal 91 , a light emitting unit 92 , a constant current unit 93 and a ground terminal G. As shown in FIG. After the power input terminal 91 receives a power signal, the light emitting unit 92 is supplied with light. The current stabilizing unit 93 controls the current flowing through the light emitting unit 92 within a certain ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/00G05F1/46H05B44/00
CPCH02J9/00G05F1/46H05B45/10H05B45/395Y02B20/30F21V29/508H05B45/56
Inventor 林陈琦
Owner CHICONY POWER TECH CO LTD