Single-power supply cascade multi-level converter
A cascaded multilevel, single power supply technology, applied in the direction of converting AC power input to DC power output, electrical components, output power conversion devices, etc. The problem of back-to-back connection of AC, DC, and AC power converters cannot be realized due to the level of voltage, so as to achieve the effect of improving the utilization rate of DC voltage, easy expansion and low loss.
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[0022] Example 1
[0023] in figure 1 In this topology, the inverter bridge (1), the inverter bridge (2), the inverter bridge (3), the auxiliary switch tube (4) and the auxiliary switch tube (5), in which the inverter bridge (1) is: capacitor One end of (C1) is connected to the collector of the switching tube (S11) and the collector of the switching tube (S13), the other end is connected to the emitter of the switching tube (S12) and the emitter of the switching tube (S14), the switching tube (S11) The emitter of the switch tube (S12) is connected to the collector, the emitter of the switch tube (S13) is connected to the collector of the switch tube (S14); the inverter bridge (2) is: the positive pole of the DC voltage source is connected to the switch tube (S21) The collector and the collector of the switching tube (S23), the negative electrode is connected to the emitter of the switching tube (S22) and the emitter of the switching tube (S24), the emitter of the switching tube (...
Example Embodiment
[0025] Example 2
[0026] in figure 2 In this extension, this extension includes inverter bridge (1), inverter bridge (2), inverter bridge (3), auxiliary switch tube (4) and auxiliary switch tube (5), of which the inverter bridge (1) is: capacitor One end of (C1) is connected to the collector of the switching tube (S11) and the collector of the switching tube (S13), the other end is connected to the emitter of the switching tube (S12) and the emitter of the switching tube (S14), the switching tube (S11) The emitter of the switch tube (S12) is connected to the collector, the emitter of the switch tube (S13) is connected to the collector of the switch tube (S14); the inverter bridge (2) is: the positive pole of the DC voltage source is connected to the switch tube (S21) The collector and the collector of the switching tube (S23), the negative electrode is connected to the emitter of the switching tube (S22) and the emitter of the switching tube (S24), the emitter of the switching ...
Example Embodiment
[0028] Example 3
[0029] in image 3 In this extension, this extension includes inverter bridge (1), inverter bridge (2), inverter bridge (3), auxiliary switch tube (4) and auxiliary switch tube (5), of which the inverter bridge (1) is: capacitor One end of (C1) is connected to the collector of the switching tube (S11) and the collector of the switching tube (S13), the other end is connected to the emitter of the switching tube (S12) and the emitter of the switching tube (S14), the switching tube (S11) The emitter of the switch tube (S12) is connected to the collector, the emitter of the switch tube (S13) is connected to the collector of the switch tube (S14); the inverter bridge (2) is: the positive pole of the DC voltage source is connected to the switch tube (S21) The collector and the collector of the switching tube (S23), the negative electrode is connected to the emitter of the switching tube (S22) and the emitter of the switching tube (S24), the emitter of the switching t...
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