DEVICE FOR BRIDGE INVERTER CONTROL Russian patent published in 2008 - IPC H02M7/53846 

FIELD: electricity.

SUBSTANCE: suggested invention is related to electrical engineering and may be used for control of bridge inverter that contains power rectifiers Insulated Gate Bipolar Transistor (IGBT) or Metal-Oxyde-Smiconductor Field Effect Transistor (MOSFET), connected according to bridge circuit. In the available device for bridge inverter control, which contains integrating modulator of pulses duration, the following components are introduced: optical couple, protective circuit, amplifier with low inlet resistance, two integrating links, unit of analog processing of signal, outlet amplifier, group of current transformers that are connected parallel "source to source" and to inlet of amplifier with low inlet resistance, the outlet of which is connected with the first integrating link, which is connected with its outlet to the first inlet of unit of signal analog processing, outlet of the first integrating link is connected to the second inlet of unit of signal analog processing, the outlet of unit of signal analog processing is connected to the inlet of the other integrating link, the outlet of which is connected to the first inlet of integrating modulator of pulses duration, to the other inlet of which outlet of optical couple is connected, which also has inlet for bridge inverter control, the outlet of integrating modulator of pulse duration is connected to the inlet of outlet amplifier, the outlet of which is connected to the inlet of protective circuit, the outlet of which is connected to the power rectifier of bridge inverter.

EFFECT: increase of efficiency factor of device for control of bridge inverter.

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