VOLTAGE CONVERTER

A converter for converting an AC voltage to a DC voltage is provided, as are a DC power supply comprising the converter; a gas turbine engine comprising the DC power supply; an aircraft comprising the gas turbine engine; and a method of providing a DC power supply using the converter. The converter comprises: a first H-bridge circuit comprising a first AC terminal 601 for receiving an AC voltage, a second AC terminal 602, a first DC terminal 614 and a second DC terminal 616; a second H-bridge circuit comprising a first AC terminal 623 for receiving an AC voltage, a second AC terminal 622, a first DC terminal 615 and a second DC terminal 617; an isolation block 613 arranged between the second AC terminal 602 of the first H-bridge circuit and the second AC terminal 622 of the second H-bridge circuit; and a DC voltage output of the converter with a first terminal and a second terminal. The second DC terminal 616 of the first H-bridge circuit is connected to the first DC terminal 615 of the second H-bridge circuit; the first terminal of the DC voltage output is connected to the first DC terminal 614 of the first H-bridge circuit; and the second terminal of the DC voltage output is connected to the second DC terminal 617 of the second H-bridge circuit.