A programmable high-precision dynamic driving gan circuit and its application
A driving circuit, high-precision technology, applied in the direction of high-efficiency power electronic conversion, electronic switches, electrical components, etc., can solve the problem that the driving delay cannot obtain the preset driving waveform, etc., to ensure the driving ability, driving accuracy, and selectivity. many effects
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Embodiment 1
[0048] A programmable high-precision dynamic driving GaN circuit, such as figure 1 As shown, it includes: a programmable digital module, a driving module and a clock generation module; wherein, the programmable digital module includes an EEPROM readout circuit, a register circuit and a logic control circuit; Coarse drive circuit and fine drive circuit for gate electrical connection;
[0049] The control and driving process of the logic control circuit is divided into a plurality of rough driving time periods. In each rough driving time period, it is possible to choose whether to perform a fine adjustment to change the driving current of this time period, and store the driving data in a programmable manner. In the off-chip programmable EEPROM;
[0050] After power-on, the EEPROM readout circuit is used to read the driving data in the EEPROM and store it in the register circuit, and the external input PWM square wave signal is electrically connected to the input of the logic co...
Embodiment 2
[0078] A dynamic driving method of a GaN power switching device, adopting any of the above-mentioned programmable high-precision dynamic driving GaN circuits to actively drive the GaN power switching device, so as to realize the dynamic driving of the GaN power switching device.
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