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Portable power electronic switching device for charging electric vehicles between each other

  • US 10,406,924 B2
  • Filed: 09/05/2017
  • Issued: 09/10/2019
  • Est. Priority Date: 03/03/2017
  • Status: Active Grant
First Claim
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1. A portable power electronic switching apparatus configured to charge a battery of a second electric vehicle using energy from a battery of a first electric vehicle, wherein the battery of the first electric vehicle powers the first electric vehicle and the battery of the second electric vehicle powers the second electric vehicle, the apparatus comprising:

  • an input end connector, wherein the input end of the connector is configured to be connected to the first electric vehicle having the battery,a DC-DC converter circuit,an input end transfer switch,a first inverter circuit having full-bridge inverter circuit comprising four insulated-gate bipolar transistors (IGBTs) forming a full bridge circuit,a direct-current output end connector, wherein the direct-current output end connector is configured to be connected to the second electric vehicle, allowing for the transfer of energy from the battery of the first electric vehicle to the battery of the second electric vehicle,an alternating-current output end connector,a conversion controller, the conversion controller is connected to the first inverter circuit by using a first switch drive circuit;

    wherein the input end connector is connected to an input end of the DC-DC converter circuit,an output end of the DC-DC converter circuit is separately connected to an input end of the first inverter circuit and the direct-current output end connector by using the input end transfer switch,an output end of the first inverter circuit is connected to the alternating-current output end connector,a transformation ratio switch controller connected to both the DC-DC converter circuit and the conversion controller,a second switch drive circuit connected to both the DC-DC converter circuit and the conversion controller,wherein the DC-DC converter circuit comprises;

    a second inverter circuit, a voltage regulating transformer, and a rectifier circuit that are sequentially connected,wherein the rectifier circuit is a diode bridge rectifier,an input end of the second inverter circuit is connected to the input end connector,an output end of the rectifier circuit is connected to the input end transfer switch,the conversion controller is connected to the voltage regulating transformer by using the transformation ratio switch controller, andthe conversion controller is connected to the second inverter circuit by using the second switch drive circuit, anda first filter circuit, the first filter circuit connects the rectifier circuit to the first inverter circuit.

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