Digital dimming control chip, digital dimming control circuit and control method
A digital dimming and control chip technology, applied in the field of electronic circuits, can solve the problems of low flexibility and difficulty in universal application of digital control methods for LED lights, so as to improve digital control efficiency, overcome low flexibility, and simplify circuit modules structure effect
Pending Publication Date: 2019-11-15
SHENZHEN SUNMOON MICROELECTRONICS
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[0005] In view of this, the embodiment of the present invention provides a digital dimming control chip, a digital dimming control circuit and a digital dimming control method, aiming to solve the problem that the traditional technical solution cannot make the LED The luminous effect of the lamp changes according to the actual needs of technicians, resulting in a problem that the digital control method of LED lamps is less flexible and difficult to apply universally
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[0062] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0063] What needs to be explained first is that the "LED lamp" referred to herein includes various types of LED lamps in the field, and this article does not make any limitation on the type of LED lamp; therefore, the digital dimming control chip 10 in the embodiment of the present invention The multifunctional digital adjustment can be performed on the luminous effects of various types of LED lamps, with high flexibility and strong compatibility.
[0064] see figure 1 , a schematic structural diagram of a digital dimming control chip 10 provided by an embodiment of the present invention. The digi...
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The invention relates to a digital dimming control chip, digital dimming control circuit and control method. The chip includes a signal access module, a processing module, a current control module anda current output module, wherein the signal access module is used for receiving a digital control signal, the processing module is used for performing shift processing and latch processing of the digital control signal to output a gain control signal and a dimming control signal, and the current control module is used for adjusting the reference current to obtain a reference output current according to the gain control signal and adjusting a ratio between the output current of an LED lamp and the reference output current according to the dimming control signal to make light source parametersof the LED lamp changed. The digital dimming control circuit can realize the flexible dimming control function of the LED lamp, an operating state of the LED lamp's power has good controllability, thecontrol response is fast, so the lighting effect of the LED lamp can fully meet the actual visual need of technicians.
Description
technical field [0001] The invention belongs to the technical field of electronic circuits, and in particular relates to a digital dimming control chip, a digital dimming control circuit and a digital dimming control method. Background technique [0002] With the rapid development of electronic circuit control technology, technicians usually use two methods of analog control and digital control to control the working status of electronic components; and the continuous popularization and application of digital processing methods such as computers, compared with analog control methods In other words, the digital control method has a higher control response speed, so the digital control method can greatly improve the performance of electronic components, so that the electronic components can realize the corresponding circuit function according to the operation instructions of the technician; It is beneficial to improve the signal processing rate and signal processing accuracy o...
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IPC IPC(8): H05B33/08H05B44/00
Inventor郭伟峰李照华陈克勇
OwnerSHENZHEN SUNMOON MICROELECTRONICS