SINGLE-BOARD POWER SUPPLY STRUCTURE AND METHOD FOR PROVIDING POWER SUPPLY

• US 20090033297A1
• Filed: 10/07/2008
• Published: 02/05/2009
• Est. Priority Date: 05/19/2006
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhang, Liyuan, Li, Chengyong
• Granted Patent: US 7,847,528 B2
• Time in Patent Office: Days
• US Class Current: 323/234
• CPC Class Codes: G06F 1/08 Clock generators with changeable or programmable clock frequency
• CPC Class Codes: H02J 1/08 Three-wire systems; Systems having more than three wires
• CPC Class Codes: H02J 1/082 Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
• CPC Class Codes: H02M 3/00 Conversion of dc power input into dc power output

Abstract

A single-board power supply structure and a method for providing a power supply are provided. An operational processor sends control signals capable of controlling the output of the power supply to a DC/DC converter. The DC/DC converter converts a received bus voltage into a required power supply voltage according to the received control signals. The operational processor may further monitor the output of the power supply and report the monitored result to a connected upper-layer machine, and may also control the sequence of a plurality of the outputs of the power supply converted by the DC/DC converter by controlling the time for sending the control signals. The structure and the method provided by the present invention can both uniformly, timely, and effectively monitor the output of the single-board power supply.

Claims

1. A single-board power supply structure, comprising an operational processor and a DC/DC converter (C) connected with each other, wherein

the operational processor is adapted to send control signals to the DC/DC converter (C), for controlling the output of the power supply of the DC/DC converter (C);

and

the DC/DC converter (C) is adapted to convert a received bus voltage into a required power supply voltage according to the received control signals.

2. The single-board power supply structure according to claim 1, wherein a power amplifier is further connected between the operational processor and the DC/DC converter (C), and the power amplifier is adapted to amplify the control signals from the operational processor and send the amplified control signals to the DC/DC converter (C).

3. The single-board power supply structure according to claim 2, wherein the number of the operational processor, the power amplifier, and the DC/DC converter (C) is respectively one or more.

4. The single-board power supply structure according claim 1, wherein the operational processor is a single-chip microcomputer, a digital signal processor (DSP), a complex programmable logic device (CPLD), or a field programmable gate array (FPGA) which is in a microprocessor (A).

5. The single-board power supply structure according to claim 1, wherein the DC/DC converter (C) comprises a non-isolated DC/DC converter and/or an isolated DC/DC converter.

6. The single-board power supply structure according to claim 5, wherein:

the non-isolated DC/DC converter comprises a non-isolated buck DC/DC converter and/or a non-isolated boost DC/DC converter.

7. The single-board power supply structure according to claim 5, wherein:

the isolated DC/DC converter comprises an isolated buck DC/DC converter and/or an isolated boost DC/DC converter.

8. The single-board power supply structure according to claim 1, wherein the DC/DC converter (C) is further connected to a single-board chip (D) capable of receiving the output of the power supply.

9. The single-board power supply structure according to claim 8, wherein an analog non-isolated linear DC/DC converter is further connected to the single-board chip (D) alone, and/or connected between the single-board chip (D) and the DC/DC converter (C).

10. The single-board power supply structure according to claim 1, wherein:

the operational processor is further adapted to monitor the output of the power supply and report the monitored result to a connected upper-layer machine.

11. The single-board power supply structure according to claim 1, wherein the control signals are plural, respectively for controlling a plurality of the outputs of the power supply converted by the DC/DC converter (C), and the operational processor is further adapted to:

control the sequence of the outputs of the power supply converted by the DC/DC converter (C) by controlling the time for sending the control signals.

12. A method for providing a single-board power supply, comprising:

sending, by an operational processor, control signals to a DC/DC converter (C), for controlling the output of the power supply of the DC/DC converter (C), and converting, by the DC/DC converter (C), a received bus voltage into a required power supply voltage according to the received control signals.

13. The method according to claim 12, wherein before the DC/DC converter (C) receives the control signals, the control signals are further sent to a power amplifier and amplified by the same, and then sent to the DC/DC converter (C).

14. The method according to claim 12, wherein the conversion of the bus voltage comprises boosting the bus voltage and/or bucking the bus voltage.

15. The method according to claim 12, wherein an analog non-isolated linear DC/DC conversion is further performed on the output of the power supply of the DC/DC converter (C).

16. The method according to claim 12, wherein:

the output of the power supply is further monitored, and the monitored result is reported to an upper-layer machine.

17. The method according to claim 12, wherein the control signals are plural, respectively for controlling a plurality of the outputs of the power supply converted by the DC/DC converter (C), and the method further comprises:

controlling the sequence of the outputs of the power supply converted by the DC/DC converter (C) by controlling the time for sending the control signals.