Linear constant-current electrooptical driving circuit, integrated circuit and control system
A linear constant current, driving circuit technology, applied in the direction of electric lamp circuit layout, electric light source, light source, etc., can solve the problems of system input power change, affecting the efficiency and light efficiency of the system, etc., and achieve the effect of high power supply rejection ratio
Inactive Publication Date: 2018-01-05
东莞市翔实信息科技有限公司
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Problems solved by technology
[0005] Aiming at the deficiencies of the prior art, the present invention proposes a linear constant-current electro-optic drive circuit, an integrated circuit and a control system, which solves the problem that the change of the input voltage will cause the change of the input power of the whole system, thus affecting the efficiency of the system.
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[0034] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments, which are preferred embodiments of the present invention. A linear constant current electro-optic drive circuit, integrated circuit and control system provided by the embodiment of the present invention can be applied to various scenarios in the field of intelligent identification technology of the Internet of Things, including but not limited to 2G GSM, 3G CDMA, 4G LTE / LTE- A. 5G eMBB mobile communication, trunking communication, satellite communication, laser communication, optical fiber communication, digital TV, radio frequency identification, power carrier, unmanned vehicle, unmanned aerial vehicle, Internet of Things, radar and other systems, the embodiment of the present invention No special restrictions are made.
[0035] The present invention proposes a linear constant current electro-optic drive circuit, such as figu...
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The invention relates to the technical field of semiconductor integrated circuits, in particular to a linear constant-current electrooptical driving circuit, an integrated circuit and a control system. The linear constant-current electrooptical driving circuit comprises a starting circuit, a constant-current circuit and a mirror image circuit. The linear constant-current electrooptical driving circuit, the integrated circuit and the control system have the advantages that the circuit utilizes the constant-current circuit with a soft drive circuit protection function to provide a work environment which has the function of automatically controlling gains and has a constant current and a constant voltage for a proportion mirror image circuit load which is connected with the circuit, and the circuit has a high power supply rejection ratio. The light effect problem that the efficiency of the system is influenced when input power of the whole system is changed due to the change of an input voltage is solved.
Description
technical field [0001] The invention relates to the technical field of semiconductor integrated circuits, in particular to a linear constant current electro-optic drive circuit, an integrated circuit and a control system. Background technique [0002] Optical drives can usually be divided into three categories, one is a switching constant current source, the other is a linear IC power supply, and the third is a resistance-capacitance step-down power supply. The switching constant current source uses a transformer to change the high voltage to low voltage, and rectifies and filters it to output stable low-voltage direct current. The switching constant current source has relatively high safety (generally output low voltage) and stable performance. The disadvantage is that the circuit is complicated and the price is low. Higher, due to the use of transformers, high cost, large volume, multiple components, and the electrolysis is easy to break, the life of the whole lamp is seve...
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Inventor 杨俊
Owner 东莞市翔实信息科技有限公司