High-voltage frequency transformer zigzag connected by power device base section
A high-voltage inverter and power device technology, which is applied in the output power conversion device, the conversion of AC power input into AC power output, and the conversion of AC power input into DC power output, etc. Control the problems such as cumbersome, to achieve the effect of simplified structure, excellent performance and simple structure of the whole machine
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[0030] see figure 2 The present invention is a high-voltage frequency converter in which the basic sections of power devices are alternately connected. It is mainly composed of a power device insulated gate bipolar transistor (IGBT), a bridge-connected diode clamp circuit, a freewheeling diode and a DC capacitor to form a power device. The basic segment, at its core, is a bridge-connected diode clamp circuit.
[0031] Referring to Figure 3, three or more basic segments of power devices are interleaved in a special way to form the main circuit of the inverter, the core of which is the basic segment of power devices. FIG. 3( a ) shows the staggered connection of the basic segments of 3 power devices, and FIG. 3( b ) shows the staggered connection of the basic segments of 12 power devices.
[0032] The number of segments of the basic segment of the power device is determined according to the required output voltage value of the high-voltage inverter and the power device IGBT can...
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