Logic-protection-amplification-circuit-based LED lamp protection type crystal oscillation control system
An amplifying circuit and logic protection technology, applied in the field of LED lamp protection type crystal oscillation control system, can solve the problems of high energy consumption, complex logic control circuit structure, slow running speed, etc., to achieve low energy consumption, fast operation speed, high performance stable effect
Inactive Publication Date: 2015-09-09
CHENGDU LEIKEER SCI & TECH
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the defects of complex logic control circuit structure, high energy consumption and slow operation speed of the current LED lamp protection system, and provide an LED lamp protection crystal oscillation control system based on a logic protection amplifier circuit
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[0022] Such as figure 1 As shown, the present invention mainly consists of NAND gate IC4, NOT gate IC5, NOT gate IC3, buffer crystal oscillator circuit, first logic link and second logic link, connected in series between NAND gate IC4 and first logic link The logic protection amplifying circuit 20 between them and the hybrid protection circuit 10 connected with the logic protection amplifying circuit 20 are composed.
[0023]When connecting, the input terminal of the NOT gate IC5 should be connected with the output terminal of the NAND gate IC4, the output terminal of the NOT gate IC3 should be connected with the negative input terminal of the NAND gate IC4, and at the same time, the output terminal of the NOT gate IC1 should be connected with The input terminal of the NOT gate IC2 is connected.
[0024] The buffer crystal oscillator circuit is composed of an inverting amplifier U1, an inverting amplifier U2, a crystal oscillator X, an adjustable capacitor C4, a resistor R5, ...
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The invention discloses a logic protection amplifying circuit based crystal oscillating control system for a blue-light LED lamp. The system mainly comprises an NAND gate IC4, a NOT gate IC5, a NOT gate IC3, a first logic link and a second logic link. An input end of the NOT gate IC5 is connected with an output end of the NAND gate IC4, an output end of the NOT gate IC3 is connected with a cathode input end of the NAND gate IC4, and the first logic link and the second logic link are connected with an anode input end of the NAND gate IC4. The system is characterized in that a buffering crystal oscillating circuit is serially connected between the first logic link and an output end of the NOT gate IC5, and a logic protection amplifying circuit is serially connected between the first logic link and the anode input end of the NAND gate IC4. The logic protection amplifying circuit based crystal oscillating control system for the blue-light LED lamp is integrally simple in structure and pretty convenient to manufacture and use; in addition, the logic control function is realized by adopting logic electronic components completely, so that the system is pretty low in energy consumption and high in operation rate.
Description
technical field [0001] The invention relates to an LED protection circuit, in particular to an LED lamp protection type crystal oscillation control system based on a logic protection amplifier circuit. Background technique [0002] At present, due to the characteristics of low energy consumption, long service life, safety and environmental protection, LED lamps have become one of the mainstream products for people's living lighting. Since LED lamps are different from traditional incandescent lamps, they need to be driven by a dedicated drive circuit, so there are various protection systems on the market to prevent the drive system from being interfered by internal or external adverse factors. [0003] The logic control circuit is an important control part of the LED lamp protection system, and its running speed and performance stability directly determine the use range and performance of the LED lamp protection system. However, at present, the structures of these logic cont...
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IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 黄涛
Owner CHENGDU LEIKEER SCI & TECH