IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0508693
(2009-07-24)
|
등록번호 |
US-8228021
(2012-07-24)
|
발명자
/ 주소 |
- Cheung, Ka Wai Eric
- Xue, Xiangdang
|
출원인 / 주소 |
- Automotive Parts and Accessory Systems R & D Centre Limited
|
대리인 / 주소 |
Leydig, Voit & Mayer, Ltd.
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
A converter circuit includes a phase circuit having a switch module, a first winding, a first diode, a second winding, and a second diode. The second winding is inductively coupled to the first winding. A multi-phase motor including the converter circuit, and a related method of controlling such a m
A converter circuit includes a phase circuit having a switch module, a first winding, a first diode, a second winding, and a second diode. The second winding is inductively coupled to the first winding. A multi-phase motor including the converter circuit, and a related method of controlling such a motor, are also provided.
대표청구항
▼
1. A converter circuit including: a positive terminal connectable to a positive pole of a power supply, and a negative terminal connectable to a negative pole of the power supply; anda phase circuit including: a switch module having first and second switch components, a first side of the first switc
1. A converter circuit including: a positive terminal connectable to a positive pole of a power supply, and a negative terminal connectable to a negative pole of the power supply; anda phase circuit including: a switch module having first and second switch components, a first side of the first switch component forming a first connection, a first side of the second switch component forming a second connection, and second sides of the first and second switch components being interconnected to form an intermediate connection;a first winding connected between the first connection and one of the positive and negative terminals, the second connection being connected to the other of the positive and negative=terminals;a first diode connected, in reverse bias, between the intermediate connection and the terminal to which the first winding is connected;a second winding connected between the intermediate connection and the terminal to which the second connection is connected; anda second diode connected, in reverse bias, in series to the second winding and connected between the intermediate connection and the terminal to which the second connection is connected, wherein the second winding is inductively coupled to the first winding. 2. The converter circuit according to claim 1 wherein the switch module is an integrated pre-manufactured unit. 3. The converter circuit according to claim 1 wherein each switch component includes a transistor. 4. The converter circuit according to claim 3 wherein each switch component includes a switch component diode connected, in reverse bias, in parallel across the transistor. 5. The converter circuit according to claim 1 wherein the switch module is an insulated gate bipolar transistor module or a gate turn off thyristor module. 6. The converter circuit according to claim 1 wherein the first and second windings form a bifilar winding. 7. The converter circuit according to claim 1 wherein the first winding is connected between the first connection and the positive terminal. 8. The converter circuit according to claim 1 wherein the phase circuit includes a plurality of the second windings, and each of the second windings is connected in parallel to the other second windings and connected between the intermediate connection and the terminal to which the second connection is connected, and each of the second windings is inductively coupled to the first winding. 9. The converter circuit according to claim 8 wherein the phase circuit includes a plurality of the second diodes, each of the second diodes corresponding to a respective one of the second windings, and each of the second diodes is connected, in reverse bias, in series to the respective second winding and is connected between the intermediate connection and the terminal to which the second connection is connected. 10. The converter circuit according to claim 8 wherein the phase circuit includes a plurality of the first diodes, each of the first diodes corresponding to a respective one of the second windings, and each of the first diodes is connected in parallel to the other first diodes and is connected in reverse bias between the intermediate connection and the terminal to which the first winding is connected. 11. The converter circuit according to claim 1 including a capacitor connected between the positive and negative terminals and in parallel with the phase circuit. 12. The converter circuit according to claim 1 wherein the phase circuit, when connected to the power supply, is operable in: a charging mode in which both of the first and second switch components are closed, thereby allowing current to flow from the power supply to charge the first winding, and thereby inductively charging the second winding;a freewheeling mode in which one of the first and second switch components is closed and the other of the first and second switch components is open, thereby allowing current to freewheel through the second winding, the one of the first and second switch component that is closed, and the second diode; anda discharging mode in which both of the first and second switch components are open, thereby allowing current to discharge from the second winding through the positive terminal. 13. The converter circuit according to claim 1 including a plurality of the phase circuits. 14. The converter circuit according to claim 13 wherein each phase circuit corresponds to a respective phase of a multi-phase power supply. 15. The converter circuit according to claim 13 wherein each phase circuit corresponds to a respective phase of a multi-phase motor. 16. A motor control circuit for a multi-phase motor that includes plurality of phases, the control circuit comprising: a positive terminal connectable to a positive pole of a power supply, and a negative terminal connectable to a negative pole of the power supply; anda plurality of phase circuits, each phase circuit corresponding to a respective phase of the multi-phase motor and including: a switch module having first and second switch components, a first side of the first switch component forming a first connection, a first side of the second switch component forming a second connection, and second sides of the first and second switch components being interconnected to form an intermediate connection;a first winding connected between the first connection and one of the positive and negative terminals, the second connection being connected to the other of the positive and negative=terminals;a first diode connected, in reverse bias, between the intermediate connection and the terminal to which the first winding is connected;a second winding connected between the intermediate connection and the terminal to which the second connection is connected; anda second diode connected, in reverse bias, in series to the second winding and connected between the intermediate connection and the terminal to which the second connection is connected, wherein the second winding is inductively coupled to the first winding.
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