CN210297564U - Centralized processing power supply management system - Google Patents
Centralized processing power supply management system Download PDFInfo
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- CN210297564U CN210297564U CN201921618633.3U CN201921618633U CN210297564U CN 210297564 U CN210297564 U CN 210297564U CN 201921618633 U CN201921618633 U CN 201921618633U CN 210297564 U CN210297564 U CN 210297564U
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Abstract
The utility model relates to a technical field of power discloses a centralized processing power supply management system, include: the input interface module is used for receiving input voltage; the control power conversion module is used for converting the voltage input by the input interface module into one or more groups of required voltages; the filtering module is used for filtering the voltage converted by the control power conversion module; the output interface module is used for outputting the voltage filtered by the filtering module; and the control module is communicated with an upper computer and used for controlling the enabling of the power conversion control module and receiving the alarm signals of the input interface module and the output interface module. Through the cooperation of the upper computer and the control module, the multi-channel power supply is controlled to be synchronously and independently output, so that ripples of the centralized processing power supply management system can be greatly reduced, and the power supply level of the whole power supply is improved.
Description
Technical Field
The utility model relates to a test power supply's technical field especially relates to a centralized processing power supply management system and power supply management method.
Background
In the semiconductor chip testing equipment in the prior art, a power supply system adopts a plurality of groups of discrete power supplies to supply power in a combined mode or supplies power through partial switch power supply modules, the power supply mode has poor performance and interference filtering on the power supplies, the problems of overlarge test error range, poor consistency and the like during testing of electrical characteristic parameters of the chip are easily caused, and especially, the damage or the increase of the reject ratio of the tested chip is easily caused by the interference of overlarge ripples and the like.
Aiming at the problems existing in the semiconductor chip testing equipment in the prior art, a centralized processing power supply management system and a multi-path filtering control method are designed for the semiconductor testing equipment, so that the influence of power supply related parameters on accurate measurement of the electrical characteristic parameters of the semiconductor chip is reduced, the performance index of the semiconductor chip testing equipment is effectively improved, and the market competitiveness of the semiconductor chip testing equipment is improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centralized processing power supply management system aims at solving among the prior art semiconductor chip test equipment and adopts the multiunit discrete power, leads to the problem to the great influence of the accurate error of semiconductor chip electrical characteristic parameter.
The utility model discloses a realize like this, a centralized processing power supply management system includes: the input interface module is used for receiving input voltage; the control power conversion module is used for converting the voltage input by the input interface module into one or more groups of required voltages; the filtering module is used for filtering the voltage converted by the control power conversion module; the output interface module is used for outputting the voltage filtered by the filtering module; and the control module is communicated with an upper computer and used for controlling the enabling of the power conversion control module and receiving the alarm signals of the input interface module and the output interface module.
Preferably, the input interface module comprises an AC-DC input interface.
Preferably, the control module comprises a CPLD-related unit.
Preferably, the input interface module, the control power conversion module, the filtering module, the output interface module, and the control module are integrated on a single board card.
Compared with the prior art, the utility model provides a centralized processing power supply management system passes through host computer and control module cooperation control multichannel power and exports alone in step, and the ripple of reduction power that can be great improves whole mains operated level. Meanwhile, the power supply to the rear stage is more stable and controllable, and the requirement of precision-level chip testing is met.
Drawings
Fig. 1 is a schematic diagram of a frame of a centralized processing power supply management system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a power supply management method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The implementation of the present embodiment is described in detail below with reference to specific drawings.
Example one
As shown in fig. 1, the present embodiment provides a centralized processing power supply management system, which includes an input interface module 11, a control power conversion module 12, a filtering module 13, and an output interface module 14, which are electrically connected in sequence; and the control module 15, the control module 15 is connected electrically to the input interface module 11, the control power conversion module 12, and the output interface module 14 at the same time.
The input interface module 11 mainly includes an AC-DC input interface for receiving an input voltage. The control power conversion module 12 includes a power module required by multi-output, and obtains a plurality of groups of low ripple power supplies by performing grouped power conversion on the AC-DC input power supply of the front pole. The filtering module 13 filters the voltage converted by the power conversion module 12, so as to reduce the ripple waves to the maximum extent. The output interface module 14 mainly includes a plurality of groups of low ripple combined power supplies obtained by the filtering module 13, and is configured to output the voltage filtered by the output filtering module 13 to the outside.
The control module 15 includes a CPLD (complex programmable logic device) related unit capable of communicating with the upper computer 2, and controls the power conversion module 12 to enable, receive the alarm signal of the input interface module 11 and the output interface module 14.
Before starting, the AC-DC voltage input in front reaches an input interface module 11 of the system, the CPLD is controlled through software control of the upper computer 2, the enabling of a power conversion module 12 is controlled, the circuit starts to work, and the power conversion module 12 converts the input DC voltage into a plurality of groups of voltages required by the rear stage. Meanwhile, the ripple can be reduced to the maximum extent by the control of the filtering module 13. If an alarm such as overcurrent, overvoltage, overtemperature and the like appears in the process, the control module 15 feeds back to the upper computer 2 after receiving the alarm, the upper computer 2 controls the enabling of the power conversion module 12, and meanwhile, the hardware is used for closing the enabling, so that the stability of the output voltage is protected doubly.
In the centralized processing power supply management system, an input interface module 11, a control power conversion module 12, a filtering module 13 and an output interface module 14 are arranged; and the control module 15 is integrated on a single board card, effectively integrates voltage parameters of various specifications on one board card, outputs the voltage parameters through the filtering module 13 to obtain a power supply management system with low ripple and high power density, and the power supply output has multiple specifications, including power supply outputs of various specifications such as +/-4.5V/+/-6.5V/+/-12V/+/-24V/+/-73.5V and the like, so that the power supply requirement of a chip to be tested is met.
Compared with the prior art, this embodiment has increased 2 independent control multichannel power synchronization of host computer and independent output, is different from adopting multiunit switching power supply to control the power supply respectively at present, and the ripple of reduction power that can be great improves whole mains operated level, and simultaneously, more stable controllable to the power supply of back level satisfies the test of precision level chip.
Example two
As shown in fig. 2, the present embodiment provides a power supply management method, including the following steps:
the upper computer 2 is connected with a power supply system to respond and receives a ready signal;
starting to power up;
detecting whether the power supply system gives an alarm or not, and receiving a normal response signal;
starting to enable the output;
detecting whether the power output meets the output index, and receiving an output normal signal;
and (5) normally supplying power.
After the power supply system starts, the upper computer 2 firstly responds to the connection with the power supply system, starts to be powered on after receiving a ready signal for power supply preparation, detects whether the power supply has an alarm, receives a normal response signal (no alarm signal) of the power supply system, and starts to enable output. And detecting whether the power output meets the output index, finally receiving an output normal signal, and starting to supply power for the later-stage semiconductor test after confirming that the output normal signal meets the index.
The upper computer 2 is connected with the power supply system to respond, and the step of receiving the ready signal specifically comprises the following steps:
s11, initializing the system;
s12 sending address signal;
s13 waiting for the power system to answer;
a ready signal is received.
And when the ready signal is not received after the preset time, the address signal is sent again, the power supply system waits for response, and the steps are repeated until the ready signal is received.
Detecting whether the power supply system gives an alarm or not, wherein the step of receiving a normal response signal specifically comprises the following steps;
s21 calls a fault alarm function;
s22, waiting for a normal signal of the power supply system;
a normal reply signal is received.
And when the normal response signal is not received after the preset time, the fault alarm function is called again, the normal response signal of the power supply system is waited, and the steps are repeated until the normal response signal is received.
Detecting whether the power output meets the output index, and receiving the output normal signal specifically comprises the following steps;
s31 calls a system enabling parameter function;
the S32 system detects and outputs a normal signal;
receiving the output normal working signal.
And when the normal working signal is not received after the preset time, calling the system enabling parameter function again, waiting for the system to detect and output the normal signal, and repeating the steps until the output normal signal is received.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A centralized processing power supply management system, comprising:
the input interface module is used for receiving input voltage;
the control power conversion module is used for converting the voltage input by the input interface module into one or more groups of required voltages;
the filtering module is used for filtering the voltage converted by the control power conversion module;
the output interface module is used for outputting the voltage filtered by the filtering module;
and the control module is communicated with an upper computer and used for controlling the enabling of the power conversion control module and receiving the alarm signals of the input interface module and the output interface module.
2. A centralized processing power supply management system as recited in claim 1, wherein said input interface module comprises an AC-DC input interface.
3. The centralized processing power supply management system of claim 1, wherein the control module comprises a CPLD-related unit.
4. A centralized processing power supply management system as recited in claim 1, wherein said input interface module, said control power conversion module, said filtering module, said output interface module, and said control module are integrated on a single board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921618633.3U CN210297564U (en) | 2019-09-26 | 2019-09-26 | Centralized processing power supply management system |
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| CN201921618633.3U CN210297564U (en) | 2019-09-26 | 2019-09-26 | Centralized processing power supply management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601563A (en) * | 2019-09-26 | 2019-12-20 | 深圳市大族半导体测试技术有限公司 | Centralized processing power supply management system and power supply management method |
| CN114123725A (en) * | 2022-01-25 | 2022-03-01 | 南京宏泰半导体科技有限公司 | High-power supply control system and method of mixed signal testing machine |
-
2019
- 2019-09-26 CN CN201921618633.3U patent/CN210297564U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601563A (en) * | 2019-09-26 | 2019-12-20 | 深圳市大族半导体测试技术有限公司 | Centralized processing power supply management system and power supply management method |
| CN114123725A (en) * | 2022-01-25 | 2022-03-01 | 南京宏泰半导体科技有限公司 | High-power supply control system and method of mixed signal testing machine |
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