Driving circuit of switch mode power conversion module based on infrared isolated communication
A technology for isolating communication and transforming modules, which is applied in the direction of output power conversion devices and electrical components, and can solve problems such as limiting switch performance, special driver chips are easily damaged, and there is no independent power supply chip with low voltage levels.
Active Publication Date: 2017-09-15
重庆威思沃科技股份有限公司
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Problems solved by technology
Uses transformer-coupled drive to adequately control the gate during indeterminate periods; however, limits switching performance to some extent
3. Direct drive mode, no independent power supply is required, and a dedicated drive chip is used for driving, but the dedicated drive chip is extremely easy to be damaged. If it is damaged, the replacement cost is high and the voltage level of the chip without an independent power supply is also low.
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] See Figure 1 to Figure 3 , The isolated driving circuit based on infrared communication of the present invention includes: a signal sending module, a signal receiving driving module and a voltage conversion module, the signal receiving driving module includes a signal receiving submodule, the driving submodule and a power supply submodule. In this embodiment, the solution is described in detail by taking the PWM signal driving the BUCK circuit as an ex...
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The invention discloses a driving circuit of a switch type power conversion module based on infrared isolation communication, comprising: a signal sending module, which is used to send a driving signal to a signal receiving module by means of infrared communication; a signal receiving driving module, which is used to adopt The drive signal is received by means of infrared communication, and the voltage conversion module is driven to work according to the received drive signal; the voltage conversion module is used to perform voltage conversion according to the drive signal sent by the signal receiving drive module, and output the conversion After the voltage, the signal receiving drive module includes a signal receiving sub-module for receiving the drive signal through the infrared receiving diode D2; the drive sub-module is used for outputting the received drive signal to the voltage conversion module and the power supply sub-module Used to supply power to the driver sub-module.
Description
technical field [0001] The invention relates to the field of power conversion using a switch mode, in particular to an isolation drive circuit based on infrared communication for driving a switch device. Background technique [0002] The 21st century is an era of informatization. The rapid development of informatization has made people more and more dependent on electronic equipment and products, and these power electronic equipment and products are inseparable from power conversion modules that use switching methods, such as switching power supplies , Inverter, Frequency Converter, Class D Power Amplifier, etc. The power conversion module using the switch mode refers to the use of modern Power Electronics surgery A module that outputs the required voltage or current by controlling the time ratio of the switch tube being turned on and off. The driving circuit, the core part of the switching power conversion module, directly affects the performance of power conversion, so...
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IPC IPC(8): H02M1/08
Inventor 杨奕李山杨长才张柏年廖鸣宇晁阳龙杨万春梅
Owner 重庆威思沃科技股份有限公司