Circuit configuration having a multi-state switching device and an energy discharge device connected to a temporary energy storage device in a third switching state of the switching device

• US 6,407,938 B2
• Filed: 02/28/2001
• Issued: 06/18/2002
• Est. Priority Date: 08/31/1998
• Status: Expired due to Term

• Current Assignee: Siemens AG
• Original Assignee: Infineon Technologies AG
• Inventors: Reiner, Robert, Smola, Michael, Palm, Herbert
• Primary Examiner(s): Vu, Bao Q.
• Application Number:
  US09/796,212
• Publication Number:
  US 20010019259A1
• Time in Patent Office: 475 Days
• Field of Search: 363/61, 363/62, 307/109, 307/110
• US Class Current: 363/62
• CPC Class Codes: H02M 3/07 using capacitors charged and discharged alternately by semiconductor devices with control electrode , e.g. charge pumps

Abstract

The power supply device has a temporary energy store, a main energy store, and a switching device. The switching device has three switching states. The temporary energy store is connected in the first switching state to a power supply input and is connected in the second switching state to the main energy store, which is connected to a power supply output. An energy discharge device is connected to the temporary energy store in the third switching state of the switching device which follows directly the second switching state.

Claims

1. A power supply device, comprising:

a power supply input and a power supply output;

a switching device having a first switching state, a second switching state, and a third switching state temporally following the second switching state;

a main energy store connected to said power supply output;

a temporary energy store connected to said power supply input in the first switching state and to said main energy store in the second switching state of said switching device; and

an energy discharge device connected to said temporary energy store in the third switching state of said switching device.

2. The power supply device according to claim 1, wherein said switching device is one of a plurality of switching devices and said temporary energy store is one of a plurality of temporary energy stores respectively associated with said switching devices and selectively connectible in parallel with one another to said power supply input and to said main energy store.

3. The power supply device according to claim 2, wherein said plurality of temporary energy stores are connected to said power supply input at different predetermined times.

4. The power supply arrangement according to claim 3, wherein said plurality of temporary energy stores are simultaneously connected to said main energy store.

5. A circuit configuration, comprising a power supply device according to claim 1, and a data processing device connected to said power supply output.

6. The circuit configuration according to claim 5, wherein said power supply device and said data processing device are integrated on a common semiconductor chip.

7. The circuit configuration according to claim 5, wherein said switching device is configured to be operated at a frequency which is less than or equal to a maximum operating frequency of said data processing device.