TWO-STROKE INVERTER WITH SINE OUTPUT VOLTAGE Russian patent published in 2011 - IPC H02M7/538 

FIELD: electricity.

SUBSTANCE: two-stroke inverter with sine output voltage includes four power transistors and filter capacitor, output two-winding transformer with output from middle point of primary winding, load connected to outputs of secondary winding and dour diodes connected as per bridge circuit and inductive element made in the form of two-winding throttle. Positive output of power supply and the first armature of capacitor are connected to output from middle point of primary winding of transformer. Negative output of power supply is connected to negative direct current output of diode bridge circuit. To positive direct current output of diode bridge circuit there connected is the second capacitor armature. The first and the second power transistors are connected by means of emitters to negative output of power supply. Collector of the first transistor is connected to the first alternating current output of diode bridge circuit. Collector of the second transistor is connected to the second alternating current output of diode bridge circuit. Collector of the third transistor is connected to positive direct current output of diode bridge circuit. The first output of the first winding of two-winding throttle is connected to the first output of primary winding of transformer. The second output of the first winding of two-winding throttle is connected to the first alternating current output of diode bridge circuit. The first output of the second winding of two-winding throttle is connected to the second output of primary winding of transformer. The second output of the second winding of two-winding throttle is connected to the second alternating current output of diode bridge circuit. Emitter of the third transistor is connected to the second alternating current output of diode bridge circuit. Collector of the fourth transistor is connected to positive direct current output of diode bridge circuit, and its emitter is connected to the first alternating current output of diode bridge circuit. Filter capacitor is connected to outputs of secondary winding of transformer.

EFFECT: improving inverter electromagnetic compatibility properties.

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