CN215297573U - Under-voltage and over-voltage debugging circuit for testing multiple strings of protection plates - Google Patents
Under-voltage and over-voltage debugging circuit for testing multiple strings of protection plates Download PDFInfo
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- CN215297573U CN215297573U CN202120854737.5U CN202120854737U CN215297573U CN 215297573 U CN215297573 U CN 215297573U CN 202120854737 U CN202120854737 U CN 202120854737U CN 215297573 U CN215297573 U CN 215297573U
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Abstract
The utility model discloses an under-voltage overvoltage debugging circuit is tested to many strings of protection boards, keep apart adjustable power module, 220V commercial power including 20 strings, 20 strings keep apart adjustable power module and all connect the 220V commercial power, establish ties each other between 20 strings of isolation adjustable power module, it is used for connecting the protection board to keep apart adjustable power module. The isolation adjustable power supply module comprises a power supply conversion module U1, a voltmeter SMG and an adjustable voltage module, the power supply conversion module U1 is connected with a 220V mains supply, and the power supply conversion module U1 and the voltmeter SMG are connected with the adjustable voltage module. The utility model discloses it is very low with the cost, the laboratory can most volume stock, need not the reservation and queues up, is fit for the quick analog voltage class protect function of engineer to the protection shield of new design, and the excessive pressure under-voltage protect function of each section electricity core in the manual quick test protection shield, work efficiency is high, convenient to use.
Description
Technical Field
The utility model relates to an under-voltage and over-voltage debugging circuit for testing a plurality of strings of protection plates.
Background
The existing protection board needs to be subjected to voltage testing, the price of the protection board can reach tens of thousands or even hundreds of thousands, although the protection board has multiple functions, the problem-generating maintenance price is high, and because the cost of the protection board for performing the voltage testing is high, the voltage testing board purchased by a company is often insufficient, the conditions of test queuing and the like are caused, and the project development progress is hindered.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, provide an under-voltage excessive pressure debugging circuit of many strings of protection shield test.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a many strings of protection shield test under-voltage overvoltage debugging circuit, includes 20 strings of isolation adjustable power module, 220V commercial power, 20 strings of isolation adjustable power module all connect the 220V commercial power, establish ties each other between 20 strings of isolation adjustable power module, isolation adjustable power module is used for connecting the protection shield.
Preferably, the isolation adjustable power supply module comprises a power supply conversion module U1, a voltmeter SMG and an adjustable voltage module, wherein the power supply conversion module U1 is connected with 220V mains supply, and the power supply conversion module U1 and the voltmeter SMG are both connected with the adjustable voltage module.
Preferably, the adjustable voltage module comprises an adjustable voltage chip U2, a switch SW1, a switch SW2, a switch SW3, a switch SW4, an adjustable resistor RF1, an adjustable resistor RF2, an adjustable resistor RF3, an adjustable resistor RF4, a resistor R61 and an adjustable resistor RF 61, one end of the switch SW 61 and one end of the adjustable resistor RF 61 are both connected with a ground signal GND, the other end of the switch SW 61 is connected with the other end of the adjustable resistor RF 61, one end of the switch SW 61 and one end of the adjustable resistor RF 61 are both connected with the other end of the switch SW 61, the other end of the switch SW 61 is connected with one end of the adjustable resistor RF 61 through the adjustable resistor RF 61, the other end of the adjustable resistor RF 61 is connected with the other end of the switch SW 61, one end of the adjustable resistor RF 61 is connected with the other end of the switch SW 61, the other end of adjustable resistance RF2 is connected with the one end of adjustable resistance RF5, the other end of adjustable resistance RF2 passes through resistance R61 and connects the VOUT end of adjustable voltage chip U2, the other end of adjustable resistance RF2 still connects the GND end of adjustable voltage chip U2, the VIN end of adjustable voltage chip U2 connects power conversion module.
Preferably, voltmeter SMG is connected between the VIN terminal of adjustable voltage chip U2 and the VOUT terminal of adjustable voltage chip U2.
Preferably, the adjustable voltage chip U2 is of type LM 317.
Preferably, the power conversion module U1 is configured to convert the 220V commercial power into a 5V dc power.
The utility model has the advantages as follows: the utility model discloses it is very low with the cost, the laboratory can most volume stock, need not the reservation and queues up, is fit for the quick analog voltage class protect function of engineer to the protection shield of new design, and the excessive pressure under-voltage protect function of each section electricity core in the manual quick test protection shield, work efficiency is high, convenient to use.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The technical scheme of the utility model is further explained by combining the attached drawings of the specification:
as shown in fig. 1, a test under-voltage and over-voltage debugging circuit for multiple strings of protection boards comprises 20 strings of isolation adjustable power modules 2 and 220V commercial power 1, wherein the 20 strings of isolation adjustable power modules 2 are connected with the 220V commercial power 1, the 20 strings of isolation adjustable power modules 2 are connected in series, and the isolation adjustable power modules 2 are used for connecting the protection boards.
As shown in fig. 2, the isolated adjustable power module 2 includes a power conversion module U1, a voltmeter SMG, and an adjustable voltage module, the power conversion module U1 is connected to the 220V utility power 1, and both the power conversion module U1 and the voltmeter SMG are connected to the adjustable voltage module.
As shown in fig. 2, the adjustable voltage module includes an adjustable voltage chip U2, a switch SW1, a switch SW2, a switch SW3, a switch SW4, an adjustable resistor RF1, an adjustable resistor RF2, an adjustable resistor RF3, an adjustable resistor RF4, a resistor R61, and an adjustable resistor RF 61, one end of the switch SW 61 and one end of the adjustable resistor RF 61 are both connected to the ground signal GND, the other end of the switch SW 61 is connected to the other end of the adjustable resistor RF 61, one end of the switch SW 61 and one end of the adjustable resistor RF 61 are both connected to the other end of the switch SW 61, the other end of the switch SW 61 is connected to one end of the adjustable resistor RF 61 through the adjustable resistor RF 61, the other end of the adjustable resistor RF 61 is connected to the other end of the switch SW 61, and one end of the adjustable resistor RF 61 is connected to the switch SW 61, the other end of adjustable resistance RF2 is connected with the one end of adjustable resistance RF5, the other end of adjustable resistance RF2 passes through resistance R61 and connects the VOUT end of adjustable voltage chip U2, the other end of adjustable resistance RF2 still connects the GND end of adjustable voltage chip U2, the VIN end of adjustable voltage chip U2 connects power conversion module. During debugging, the protection plate is connected with the VOUT end of the adjustable voltage chip U2.
As shown in FIG. 2, voltmeter SMG is connected between VIN terminal of adjustable voltage chip U2 and VOUT terminal of adjustable voltage chip U2, and adjustable voltage chip U2 is LM 317.
As shown in fig. 1 and fig. 2, 20 strings of isolated adjustable power modules 2 are connected in series, and the isolated adjustable power modules 2 are used for connecting a protection board. The adjustable resistor RF2 is a basic voltage adjustable resistor, long handles are used for the adjustable resistors, the adjustable resistor RF3 and the adjustable resistor RF4 are connected in series to the adjustable resistor RF2, the adjustable resistor RF3 and the adjustable resistor RF4 can be respectively short-circuited by a switch SW3 and a switch SW4, the switch SW3 and the switch SW4 are normally closed toggle switches, the adjustable resistor RF5 and the adjustable resistor RF1 are connected in parallel to the adjustable resistor RF2 and are connected in series to a switch SW2 or a switch SW1, and the switch SW2 and the switch SW1 are both toggle switches. R61 is a fixed patch resistor.
The operation process of the product; 1: when the module is powered on, the default state switch SW3 and the switch SW4 are normally closed, the resistor R61, the adjustable resistor RF2, the adjustable resistor RF3 and the adjustable resistor RF4 form an adjusting loop, and R61 is a fixed resistor, because the adjustable resistor RF3 and the adjustable resistor RF4 are short-circuited, the series loop is adjusted only through the adjustable resistor RF2, and under the normal condition, the voltage of the voltmeter SMG displayed at 3.6V is adjusted at this time. 2: switch SW3 is now open and adjustable resistor RF3 participates in loop regulation, which now regulates voltmeter SMG to 4.1V. 3: switch SW4 is then opened, which in turn adjusts resistor RF4 to adjust voltmeter SMG to 4.2V. 4: the default states of the recovery switch SW3 and the recovery switch SW4 are normally closed. 5: at this point switch SW2 is closed, and then adjustable resistor RF1 is connected in parallel to adjustable resistor RF2, adjusting voltmeter SMG to 3.1V. 6: switch SW1 is closed again, at which time adjustable resistor RF1 continues to be connected in parallel in the loop, at which time voltmeter SMG is adjusted to 2.8V. 7: all the prefabricated voltages are adjusted, and then 4 switches are controlled to be seamlessly switched among 3.6V (stock-in voltage), 4.1V (overvoltage recovery), 4.2V (overvoltage value), 2.8V (undervoltage recovery) and 3.1V (undervoltage value). 8: after the voltage adjustment of stocking under the normal condition, later on not adjusting, use as the sampling precision, and when needing each section electric core under-voltage overvoltage function in the test protection shield, only need to go up toggle button sub-switch from top to bottom and can accomplish the operation, need not be like the simulation electric core that has the host computer, still need pass through the keyboard and set up the parameter, make a round trip to set up, cause inefficiency.
The utility model discloses it is very low with the cost, the laboratory can most volume stock, need not the reservation and queues up, is fit for the quick analog voltage class protect function of engineer to the protection shield of new design, and the excessive pressure under-voltage protect function of each section electricity core in the manual quick test protection shield, work efficiency is high, convenient to use.
It should be noted that the above list is only one specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications can be made, and in short, all modifications that can be directly derived or suggested by the person skilled in the art from the disclosure of the present invention should be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides an under-voltage overvoltage debugging circuit is tested to many strings of protection boards, its characterized in that, includes 20 strings of isolation adjustable power module (2), 220V commercial power (1) are all connected in 20 strings of isolation adjustable power module (2), establish ties each other between 20 strings of isolation adjustable power module (2), isolation adjustable power module (2) are used for connecting the protection board.
2. The under-voltage and over-voltage debugging circuit for testing a plurality of strings of protection boards as claimed in claim 1, wherein the isolated adjustable power supply module (2) comprises a power conversion module U1, a voltmeter SMG and an adjustable voltage module, the power conversion module U1 is connected to 220V mains supply (1), and the power conversion module U1 and the voltmeter SMG are both connected to the adjustable voltage module.
3. The under-voltage and over-voltage debugging circuit for testing a plurality of strings of protection boards as claimed in claim 2, wherein the adjustable voltage module comprises an adjustable voltage chip U2, a switch SW1, a switch SW2, a switch SW3, a switch SW4, an adjustable resistor RF1, an adjustable resistor RF2, an adjustable resistor RF3, an adjustable resistor RF4, a resistor R61 and an adjustable resistor RF 46, one end of the switch SW4 and one end of the adjustable resistor RF4 are both connected to the ground signal GND, the other end of the switch SW4 is connected to the other end of the adjustable resistor RF4, one end of the switch SW3 and one end of the adjustable resistor RF3 are both connected to the other end of the switch SW3, the other end of the switch SW3 and one end of the switch SW3 are both connected to the other end of the adjustable resistor RF3, the other end of the switch SW3 is connected to the switch SW3, one end of the adjustable resistor RF2 is connected with the other end of the switch SW3, the other end of the adjustable resistor RF2 is connected with one end of the adjustable resistor RF5, the other end of the adjustable resistor RF2 is connected with the VOUT end of the adjustable voltage chip U2 through the resistor R61, the other end of the adjustable resistor RF2 is further connected with the GND end of the adjustable voltage chip U2, and the VIN end of the adjustable voltage chip U2 is connected with the power supply conversion module.
4. The under-voltage and over-voltage debugging circuit for testing a multi-string protection board as claimed in claim 2, wherein the voltmeter SMG is connected between the VIN terminal of the adjustable voltage chip U2 and the VOUT terminal of the adjustable voltage chip U2.
5. The under-voltage and over-voltage debugging circuit for testing a multi-string protection board as claimed in claim 3, wherein the adjustable voltage chip U2 is LM 317.
6. The under-voltage and over-voltage debugging circuit for testing a plurality of strings of protection boards as claimed in claim 2, wherein the power conversion module U1 is configured to convert 220V mains (1) into 5V DC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854737.5U CN215297573U (en) | 2021-04-23 | 2021-04-23 | Under-voltage and over-voltage debugging circuit for testing multiple strings of protection plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120854737.5U CN215297573U (en) | 2021-04-23 | 2021-04-23 | Under-voltage and over-voltage debugging circuit for testing multiple strings of protection plates |
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| Publication Number | Publication Date |
|---|---|
| CN215297573U true CN215297573U (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120854737.5U Active CN215297573U (en) | 2021-04-23 | 2021-04-23 | Under-voltage and over-voltage debugging circuit for testing multiple strings of protection plates |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156298A (en) * | 2021-04-23 | 2021-07-23 | 福建飞毛腿动力科技有限公司 | Under-voltage and over-voltage debugging circuit for testing multiple strings of protection plates |
-
2021
- 2021-04-23 CN CN202120854737.5U patent/CN215297573U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156298A (en) * | 2021-04-23 | 2021-07-23 | 福建飞毛腿动力科技有限公司 | Under-voltage and over-voltage debugging circuit for testing multiple strings of protection plates |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221130 Address after: Room 44, 23rd Floor, Building 1, New Drug Creation Center, No. 10 Yaoxi Road, Nanyu Town, Minhou County, Fuzhou City, Fujian Province, 350109 Patentee after: Scud Energy Technology Co.,Ltd. Address before: Floor 6, No.98, Jiangbin East Avenue, Mawei District, Fuzhou City, Fujian Province (in the pilot Free Trade Zone) Patentee before: FUJIAN FEIMAOTUI POWER TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |