Power supply appliance of a transport system
First Claim
Patent Images
1. A power supply appliance of a transport system, the power supply appliance comprising:
- a power rectifier of a motor,an AC voltage circuit,a power supply circuit of safety devices,and a power shaping circuit fitted between a DC intermediate circuit of the power rectifier, the AC voltage circuit, and the power supply circuit, the power shaping circuit includingfirst and second change-over switches fitted as an H-bridge in the DC intermediate circuit,diodes fitted as an antiparallel circuit in parallel with negative and positive changeover contacts of the change-over switches; and
a transformer having a plurality of windings, of which the first winding is fitted to the H-bridge between the center points of the first and the second change-over switches, the second winding is fitted to the AC voltage circuit, and the third winding is fitted to the power supply circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
A power supply appliance of a transport system is provided. The appliance includes a power rectifier of the motor, an AC voltage circuit, a control voltage circuit, a power supply circuit of the safety devices, an AC/DC transformer fitted between the AC voltage circuit and the control voltage circuit to supply power from the AC voltage circuit to the control voltage circuit, and a power shaping circuit.
7 Citations
14 Claims
-
1. A power supply appliance of a transport system, the power supply appliance comprising:
-
a power rectifier of a motor, an AC voltage circuit, a power supply circuit of safety devices, and a power shaping circuit fitted between a DC intermediate circuit of the power rectifier, the AC voltage circuit, and the power supply circuit, the power shaping circuit including first and second change-over switches fitted as an H-bridge in the DC intermediate circuit, diodes fitted as an antiparallel circuit in parallel with negative and positive changeover contacts of the change-over switches; and a transformer having a plurality of windings, of which the first winding is fitted to the H-bridge between the center points of the first and the second change-over switches, the second winding is fitted to the AC voltage circuit, and the third winding is fitted to the power supply circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A power supply appliance of a transport system, the power supply appliance comprising:
-
a power rectifier of a motor, an AC voltage circuit, a power supply circuit of safety devices, a control voltage circuit; an AC/DC transformer, which is fitted between the AC voltage circuit and the control voltage circuit to supply power from the AC voltage circuit to the control voltage circuit; and a power shaping circuit fitted between a DC intermediate circuit of the power rectifier, the AC voltage circuit, and the power supply circuit, the power shaping circuit including first and second change-over switches fitted as an H-bridge in the DC intermediate circuit, and diodes fitted as an antiparallel circuit in parallel with negative and positive changeover contacts of the change-over switches. - View Dependent Claims (14)
-
Specification