Driver circuit of transmitter for electrical exploration based on IPM
基于IPM的电法勘探发送机逆变器外围驱动电路研究

As an inverter, IPM faces a very important problem: the influence of turn-off time. In electrical exploration, inductance of load, which influences turn-off time of inverter, is large sometimes. If this point is not considered, short-circuit and device damage will happen under serious conditions. So, in geophysical exploration, the idea of using high speed opto-couplers to improve transmitting frequency in some fields of frequency conversion is not appropriate. Based on the analysis of some commonly used peripheral driver circuits, combining the particularity of electrical exploration, a new method is proposed. Which includes designing peripheral circuit of IPM and choosing the device and calculating the value of parameters, This method can save the costs and drive IPM more safely.