Energy-saving power amplification type grid driving system based on gate driving
A gate drive and power amplification technology, applied in the field of energy-saving power amplified gate drive system, can solve the problems of long start-up time and poor driving effect, and achieves short start-up time, convenient production and use, and simple overall structure Effect
Inactive Publication Date: 2015-08-19
CHENGDU CHUANGTU TECH
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[0003] The purpose of the present invention is to overcome the defects of poor driving effect and long start-up time in current gate drive circuits, and provide an energy-saving power amplified gate drive system based on gate drive
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[0018] Such as figure 1 As shown, the present invention consists of a driver chip M, a driver circuit connected to the driver chip M, a switching power amplifying circuit connected to the driver chip M, a bootstrap circuit connected to the switching power amplifying circuit, and a driver chip M 1. Switching power amplifying circuit and a beam-excited logic amplifying circuit connected with a bootstrap circuit. In order to achieve the purpose of the present invention, the present invention also has a gate drive circuit connected in series between the beam-exciting logic amplifying circuit and the driving circuit. In order to ensure the application effect of the present invention, the driver chip M is preferably implemented by using a high-frequency N-channel MOSFET gate driver chip produced by Linear Technology, namely the LTC4440A integrated chip. The characteristic of the driver chip M is that it can work with an input voltage up to 80V, and it can work continuously when it i...
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The invention discloses an energy-saving power-amplifying-type grid driving system which is mainly composed of a driving chip M, a driving circuit connected with the driving chip M, a switch power amplifying circuit connected with the driving chip M and a bootstrap circuit connected with the switch power amplifying circuit. The energy-saving power-amplifying-type grid driving system is characterized by further comprising a light beam excitation type logic amplifying circuit which is connected with the driving chip M, the switch power amplifying circuit and the bootstrap circuit, the light beam excitation type logic amplifying circuit is mainly composed of a power amplifier P4, an NAND gate IC1, an NAND gate IC2, an NAND gate IC3 and a polar capacitor C12, and a cathode of the polar capacitor C12 is connected with an anode input end of the power amplifier P4 while an anode of the same passes through a light diode D3 and then is grounded. The energy-saving power-amplifying-type grid driving system is quite simple in integral structure and quite convenient to manufacture and use. In addition, starting time of the energy-saving power-amplifying-type grid driving system is only one fourth that of a conventional grid driving circuit, so that the energy-saving power-amplifying-type grid driving system is extremely short in starting time.
Description
technical field [0001] The invention relates to an LED drive circuit, in particular to an energy-saving power amplified gate drive system based on gate drive. 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 the LED lamp is different from the traditional incandescent lamp, it needs to be driven by a dedicated driving circuit. However, due to the unreasonable design structure of the gate drive circuit widely used by people at present, the current gate drive circuit has defects such as poor driving effect and long start-up time. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of poor driving effect and long start-up time in current gate drive circuits, and provide an energy-saving power amplified gate drive system based on gate drive. ...
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IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 周云扬
Owner CHENGDU CHUANGTU TECH