CN2824048Y - Three-terminal voltage stabilizer tester - Google Patents
Three-terminal voltage stabilizer tester Download PDFInfo
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- CN2824048Y CN2824048Y CN 200520065337 CN200520065337U CN2824048Y CN 2824048 Y CN2824048 Y CN 2824048Y CN 200520065337 CN200520065337 CN 200520065337 CN 200520065337 U CN200520065337 U CN 200520065337U CN 2824048 Y CN2824048 Y CN 2824048Y
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Abstract
The utility model relates to a three-terminal voltage stabilizer tester which relates to a tester. The utility model comprises a testing gauge head, a gauge head power supply and a sampling circuit, wherein the testing end of the testing gauge head is connected with the output end of the sampling circuit. The utility model is characterized in that the utility model also comprises a first rectification circuit; the utility model is at least provided with a first and a second testing interfaces. Each of the testing interfaces has three base pins. The base pins 1, 2 of the first testing interface are respectively connected with the same phase of the output end of the first rectification circuit. The base pins 1, 2 of the second testing interface are respectively connected with the reverse phase of the output end of the first rectification circuit. The base pins 2, 3 of the first testing interface are respectively connected with the same phase of the input end of the sampling circuit. The base pins 2, 3 of the second testing interface are respectively connected with the reverse phase of the input end of the sampling circuit. A switch is arranged between the base pin 2 of the second testing interface and the output end A of the first rectification circuit. Switches are respectively arranged between the base pin 2 of the first testing interface and the input end of the sampling circuit, and between the base pin 3 of the first testing interface and the input end of the sampling circuit. Switches are respectively arranged between the base pin 2 of the second testing interface and the input end of the sampling circuit, and between the base pin 3 of the second testing interface and the input end of the sampling circuit. The utility model has high reliability.
Description
Technical field
The utility model relates to testing tool, relates in particular to a kind of three terminal regulator proving installation.
Background technology
Three terminal regulator 7800 and 7900 serial integrated stable voltage circuits are a kind of devices that are widely used in electronic circuit, three terminal regulator 7800 series are input termination positive sources, the output terminal output voltage is for just, three terminal regulator 7900 series are input termination power cathodes, the output terminal output voltage is for negative, and the user does not also have a kind of simple and direct measuring instrument to its test before use, do not know voltage stabilizing output valve accurately, influence the design and the production of product.Usually the way that is adopted is to use a source of stable pressure, add connecting line and a multimeter is measured, but because the output voltage polarity of 7800 serial voltage stabilizers and 7900 serial voltage stabilizers is opposite, adds and adopt this manually-operated, serve inconvenience to calibration tape, in test, there are loose contact and human factor, testing efficiency is low, also can cause misjudgement, the erroneous judgement of assay sometimes, therefore, prior art efficient is low, poor reliability.
Summary of the invention
The purpose of this utility model is to provide the three terminal regulator proving installation of a kind of efficient height and good reliability, to overcome deficiency of the prior art.
The three terminal regulator proving installation that the utility model adopted comprises detection gauge outfit, gauge outfit power supply and sample circuit, the test side of described detection gauge outfit links to each other with the sample circuit output terminal, it is characterized in that: also comprise first rectification circuit, and be provided with first test interface and second test interface at least, each test interface all has three pins, wherein, the pin 1,2 of described first test interface is connected together with the first rectification circuit output end A, B respectively; The pin 1,2 of described second test interface with the first rectification circuit output end A, B is anti-phase is connected; The pin 2,3 of described first test interface is connected together with sample circuit input end E, F; The pin 2,3 of described second test interface with sample circuit input end E, F is anti-phase is connected.
Between the pin 2 of described second test interface and the output terminals A of first rectification circuit switch is set; Between the pin 2,3 of described first test interface and the sample circuit input end switch is set; Between the pin 2,3 of described second test interface and the sample circuit input end switch is set.
Described first rectification circuit also connects first source of stable pressure, and the 3rd test interface with three pins is set; Between the pin 2 of described second test interface and the output terminal C of first source of stable pressure switch is set; The pin 1,2 of described the 3rd test interface is connected together with the first source of stable pressure output terminal C, B respectively; The pin 2,3 of described the 3rd test interface links to each other with the pin 2,3 of described first test interface respectively.
The pin 2 of described second test interface and the first rectification circuit output end A, and the output terminal C of first source of stable pressure between set switch be single-pole double-throw switch (SPDT); Set switch is a double-point double-throw switch between the pin 1,2 of described the 3rd test interface and the first source of stable pressure output terminal C, the B; Set switch is a double-point double-throw switch between the pin 2,3 of described second test interface and the sample circuit input end.
Described first source of stable pressure is three terminal regulator IC1.
Connect filter capacitor between the pin 2,3 of described first test interface, second test interface, the 3rd test interface.
Connect luminous indicating circuit between the described first rectification circuit output end A, the B, described luminous indicating circuit is connected with light emitting diode D4 by resistance R 4 and is constituted.
Also connect divided circuit between the described first rectification circuit output end A, the B, described divided circuit is made of resistance R 3 and voltage stabilizing diode D3 series connection.
Connect power supply between described sample circuit input end E, the F and detect socket, described power supply detects socket and is made of jack and detachable resistance R 5 parallel connections.
Described sample circuit is a voltage sampling circuit, by resistance in series R1, the sampling of R2 dividing potential drop.
Comprise second rectification circuit and second source of stable pressure in the described gauge outfit power supply, second rectification circuit output end links to each other with the second source of stable pressure input end, the second source of stable pressure output terminal links to each other with the power end S1+, the S1-that detect gauge outfit, and described second source of stable pressure is three terminal regulator IC2.
The DC voltage of described first rectification circuit output is 19V-22V.
The beneficial effects of the utility model are: in the utility model, by first test interface and second test interface are set, pin 1 with first test interface and second test interface, 2 link to each other with first rectification circuit output end, and both pins 1,2 anti-phase relatively connection first rectification circuit output ends, pin 2 with first test interface and second test interface, 3 link to each other with the sample circuit input end, and both pins 2,3 also is corresponding anti-phase access sample circuit input end, like this, the electric power polarity feature that just is suitable for 7800 and 7900 serial three terminal regulators, first test interface and second test interface can be respectively applied for test 7800 and 7900 serial three terminal regulators, when test, only need that three terminal regulator to be tested is inserted corresponding test interface and can detect gauge outfit read-out voltage value, easy and simple to handle, reading is directly perceived, in the operation of reality, the required work of doing of user only is three pins that three end pin of three terminal regulator inserted accordingly test interface, operation is suitable for stylizing, high efficiency, the circuit that does not need the user to go to close interior portion connects, this has also just been avoided human factor, improved reliability, therefore, the utility model efficient height, good reliability.
Between the output terminals A of the pin 2 of second test interface and first rectification circuit 3, switch is set, the pin 2 of first test interface, 3 and the sample circuit input end between switch is set, and the pin 2 of second test interface, 3 and the sample circuit input end between switch is set, can make more standard of test operation, prevent from circuit setting, avoid maloperation (as the corresponding test interface of wrong plug), in test, as long as set the state of above-mentioned switch, wrong plug do not have to conduct yet and produce or tested three terminal regulator is powered up, further improved practicality of the present utility model and reliability.
Connect first source of stable pressure and the 3rd test interface is set by first rectification circuit, the output of first source of stable pressure is connected to tested three terminal regulator input end, can avoid the three terminal regulator of low voltage value model is imported too high relatively voltage at input end, reduce the error, the mistake that produce owing to the factor of can not surveying, further improved reliability of the present utility model.
Between the pin 2,3 of first test interface, second test interface, the 3rd test interface, connect filter capacitor, can reduce, avoid data to misread, can improve functional reliability of the present utility model and stability.
Between first rectification circuit output end, connect luminous indicating circuit and be used to show duty of the present utility model, improved practicality of the present utility model.
Connect divided circuit and can weaken unexpected surge between first rectification circuit output end, the equipment that prevents is damaged.
Between the sample circuit input end, connect power supply and detect socket, can be used to the output voltage of testing power supply (adapter), when adopting detachable resistance R 5, just can obtain the output voltage of power supply (adapter) when unloaded or access load, more fully understand power supply (adapter) performance, parameter, improved practicality of the present utility model.
The gauge outfit power supply adopts second rectification circuit and second source of stable pressure, second rectification circuit output end links to each other with the second source of stable pressure input end, the second source of stable pressure output terminal links to each other with the power end that detects gauge outfit, can make and detect more stable, the accurate voltage input of gauge outfit acquisition, improve functional reliability of the present utility model and degree of accuracy.
The DC voltage of first rectification circuit output is 19V-22V, because 7800 and 7900 serial three terminal regulators mainly comprise 7815,7812,7808,7806,7805,7915,7912,7908,7906,7905 model, can make the utility model almost be applicable to the test of all 7800 and 7900 serial three terminal regulators, improve practicality of the present utility model.
Description of drawings
Fig. 1 is the utility model embodiment 1 basic circuit principle schematic;
Fig. 2 is the utility model embodiment 1 circuit connection diagram;
Fig. 3 is the utility model embodiment 2 basic circuit principle schematic;
Fig. 4 is the utility model embodiment 2 circuit connection diagrams;
Fig. 5 is the utility model embodiment 3 basic circuit principle schematic;
Fig. 6 is the utility model embodiment 3 circuit connection diagrams.
Embodiment
With embodiment the utility model is described in further detail with reference to the accompanying drawings below:
Embodiment 1:
According to Fig. 1 and Fig. 2, the utility model comprises detection gauge outfit S, gauge outfit power supply 1, sample circuit 2 and first rectification circuit 3, and the test side S2+, the S2-that detect gauge outfit S link to each other with sample circuit 2 output terminals.
As shown in Figure 2, comprise second rectification circuit 11 and second source of stable pressure 12 in the gauge outfit power supply 1, second rectification circuit, 11 output terminal G, H link to each other with second source of stable pressure, 12 input ends, second source of stable pressure, 12 output terminals link to each other with the power end S1+, the S1-that detect gauge outfit S, second source of stable pressure 12 is three terminal regulator IC2, connects electrolytic capacitor filter C7 between second rectification circuit, 11 output terminal G, the H.
In the utility model, detecting gauge outfit S can be with four and half digital panel meter, its model is XL5145V-3, the work chip that detects gauge outfit S connects the DC voltage that just meets negative input+5V with pin 3 (being power end S1-) by pin 8 (being power end S1+), three terminal regulator IC2 output 5V DC voltage.The tested voltage signal that pin 1 (being test side S2+) is just connecing, pin 2 (being test side S2-) connects negative input of work chip signal input end, the output voltage numeral shows after internal wholesale integrated circuit LSI comparison operation.
As shown in Figure 2, sample circuit 2 is a voltage sampling circuit, and by resistance in series R1, the sampling of R2 dividing potential drop, the dividing potential drop on the resistance R 2 is connected to test side S2+, S2-.
As depicted in figs. 1 and 2, first rectification circuit 3 is a diode bridge rectifier circuit, connects electrolytic capacitor filter C1 and high-frequency filter capacitor C4 between first rectification circuit, 3 output terminals A, the B.The DC voltage of first rectification circuit, 3 outputs is 19V-22V, and in the present embodiment, setting its output valve is 20V.
As depicted in figs. 1 and 2, connect luminous indicating circuit 5 between first rectification circuit, 3 output terminals A, the B, this luminous indicating circuit 5 is connected with light emitting diode D4 by resistance R 4 and is constituted.
As depicted in figs. 1 and 2, also connect divided circuit 6 between first rectification circuit, 3 output terminals A, the B, described divided circuit 6 is made of resistance R 3 and voltage stabilizing diode D3 series connection, and voltage stabilizing diode D3 is anodal to be communicated with first rectification circuit, 3 output terminal B.
As depicted in figs. 1 and 2, in the present embodiment, be provided with the first test interface J1 and the second test interface J2, each test interface all has three pins.
As depicted in figs. 1 and 2, the pin 1,2 of the first test interface J1 is connected together with first rectification circuit, 3 output terminals A, B respectively, that is, the pin 1 of the first test interface J1 links to each other with first rectification circuit, 3 output terminals A; The pin 2 of the first test interface J1 links to each other with first rectification circuit, 3 output terminal B.
As depicted in figs. 1 and 2, the pin 1,2 of the second test interface J2 with first rectification circuit, 3 output terminals A, B is anti-phase is connected, that is, the pin 1 of the second test interface J2 links to each other with first rectification circuit, 3 output terminal B; The pin 2 of the second test interface J2 links to each other with first rectification circuit, 3 output terminals A.
As depicted in figs. 1 and 2, the pin 2,3 of the first test interface J1 is connected together with sample circuit 2 input end E, F, that is, the pin 2 of the first test interface J1 links to each other with sample circuit 2 input end E; The pin 3 of the first test interface J1 links to each other with sample circuit 2 input end F.
As depicted in figs. 1 and 2, the pin 2,3 of the second test interface J2 with sample circuit 2 input end E, F is anti-phase is connected, that is, the pin 2 of the second test interface J2 links to each other with sample circuit 2 input end F; The pin 3 of the second test interface J2 links to each other with sample circuit 2 input end E.
As shown in Figure 2, between the pin 2,3 of the first test interface J1, the second test interface J2, connect high-frequency filter capacitor C5, C6 respectively.
In use, with the independent first test interface J1 that inserts of the three terminal regulator of 7800 models, or, can read the correspondent voltage value at detection gauge outfit S with the independent second test interface J2 that inserts of the three terminal regulator of 7900 models.
As depicted in figs. 1 and 2, connect power supply between sample circuit 2 input end E, the F and detect socket 7, power supply detects socket 7 and is made of jack J4 and detachable resistance R 5 parallel connections, the plug of power supply (adapter) is inserted jack J4, the output voltage values that gauge outfit S reads power supply (adapter) can detected, can load during test or dismounting resistance R 5, can obtain the output voltage of power supply (adapter) when unloaded or access load.
Embodiment 2:
According to Fig. 3 and Fig. 4, present embodiment and embodiment 1 described difference are: in the present embodiment, between the pin 2 of the second test interface J2 and the output terminals A of first rectification circuit 3 single-pole single-throw switch (SPST) K0 is set, between the pin 2,3 of the first test interface J1 and sample circuit 2 input end E, the F double-point double-throw switch K3 is set, between the pin 2,3 of the second test interface J2 and sample circuit 2 input end E, the F double-point double-throw switch K2 is set.
As shown in Figure 3 and Figure 4, in use, if detect the three terminal regulator of 7800 models, then cut-off switch K0 and K switch 2, the K3 that closes a switch can test; If detect the three terminal regulator of 7900 models, then close a switch K0 and K switch 2, cut-off switch K3 can test.
Structure, principle and embodiment 1 as for the other parts of present embodiment are described same or similar, repeat no more herein.
Embodiment 3:
According to Fig. 5 and Fig. 6, the difference of present embodiment and embodiment 2 is: in the present embodiment, first rectification circuit 3 also connects the three terminal regulator IC1 that first source of stable pressure, 4, the first source of stable pressure 4 adopt 12V output, and present embodiment also is provided with the 3rd test interface J3 with three pins.
As shown in Figure 5 and Figure 6, between the output terminal C of the pin 2 of the second test interface J2 and first source of stable pressure 4 single-pole double-throw switch (SPDT) K1 is set, specifically, the common ends of single-pole double-throw switch (SPDT) K1 is connected to the pin 2 of the second test interface J2, throws the output terminal C that end is connected to first rectification circuit, 3 output terminals A and first source of stable pressure 4 respectively for two of single-pole double-throw switch (SPDT) K1.
As shown in Figure 5 and Figure 6, the pin 1,2 of the 3rd test interface J3 is connected together with first source of stable pressure, 4 output terminal C, B respectively; That is, the pin 1 of the 3rd test interface J3 links to each other with first source of stable pressure, 4 output terminal C, and the pin 2 of the 3rd test interface J3 links to each other with first source of stable pressure, 4 output terminal B.
As shown in Figure 5 and Figure 6, the pin 2,3 of the 3rd test interface J3 links to each other with the pin 2,3 of the first test interface J1 respectively, that is, the pin 2 of the 3rd test interface J3 links to each other with the pin 2 of the first test interface J1, and the pin 3 of the 3rd test interface J3 links to each other with the pin 3 of the first test interface J1.
As shown in Figure 5 and Figure 6, in use, for as the test of the three terminal regulator of 7808,7806,7805 models (low voltage output), make single-pole double-throw switch (SPDT) K1 be communicated to first source of stable pressure 4, double-point double-throw switch K2 disconnection, double-point double-throw switch K3 conducting, can test.As for same or similar described in structure, principle and the use of other parts and embodiment 1 or the embodiment 2, repeat no more herein.
In the present embodiment, three terminal regulator at 7800 series of low voltage output is provided with the 3rd test interface J3, in like manner, can test interface be set at the three terminal regulator of 7900 series of low voltage output, repeat no more herein, and, for the various switch settings in the foregoing description, those skilled in the art can make multiple conversion or adopt the soft switch of Electronic Control according to the above, are the simple replacement that need not pay creative work, need not give unnecessary details herein.
Claims (12)
1. three terminal regulator proving installation, comprise and detect gauge outfit (S), gauge outfit power supply (1) and sample circuit (2), the test side of described detection gauge outfit (S) links to each other with sample circuit (2) output terminal, it is characterized in that: also comprise first rectification circuit (3), and be provided with first test interface (J1) and second test interface (J2) at least, each test interface all has three pins, wherein
The pin (1) of described first test interface (J1), (2) are connected together with first rectification circuit (3) output terminal (A), (B) respectively;
The pin (1) of described second test interface (J2), (2) with first rectification circuit (3) output terminal (A), (B) is anti-phase is connected;
The pin (2) of described first test interface (J1), (3) are connected together with sample circuit (2) input end (E), (F);
The pin (2) of described second test interface (J2), (3) with sample circuit (2) input end (E), (F) is anti-phase is connected.
2. three terminal regulator proving installation according to claim 1 is characterized in that:
Between the pin (2) of described second test interface (J2) and the output terminal (A) of first rectification circuit (3) switch is set;
Between the pin (2) of described first test interface (J1), (3) and sample circuit (2) input end switch is set;
Between the pin (2) of described second test interface (J2), (3) and sample circuit (2) input end switch is set.
3. three terminal regulator proving installation according to claim 2 is characterized in that:
Described first rectification circuit (3) also connects first source of stable pressure (4), and the 3rd test interface (J3) with three pins is set;
Between the pin (2) of described second test interface (J2) and the output terminal (C) of first source of stable pressure (4) switch is set;
The pin (1) of described the 3rd test interface (J3), (2) are connected together with first source of stable pressure (4) output terminal (C), (B) respectively;
The pin (2) of described the 3rd test interface (J3), (3) link to each other with pin (2), (3) of described first test interface (J1) respectively.
4. three terminal regulator proving installation according to claim 3 is characterized in that:
The pin (2) of described second test interface (J2) and first rectification circuit (3) output terminal (A), and the output terminal (C) of first source of stable pressure (4) between set switch be single-pole double-throw switch (SPDT);
Set switch is a double-point double-throw switch between the pin (1) of described the 3rd test interface (J3), (2) and first source of stable pressure (4) output terminal (C), (B);
Set switch is a double-point double-throw switch between the pin (2) of described second test interface (J2), (3) and sample circuit (2) input end.
5. three terminal regulator proving installation according to claim 3 is characterized in that: described first source of stable pressure (4) is a three terminal regulator (IC1).
6. three terminal regulator proving installation according to claim 3 is characterized in that: connect filter capacitor between the pin (2) of described first test interface (J1), second test interface (J2), the 3rd test interface (J3), (3).
7. according to any described three terminal regulator proving installation in the claim 1 to 6, it is characterized in that: connect luminous indicating circuit (5) between described first rectification circuit (3) output terminal (A), (B), described luminous indicating circuit (5) is by resistance (R4) formation of connecting with light emitting diode (D4).
8. according to any described three terminal regulator proving installation in the claim 1 to 6, it is characterized in that: also connect divided circuit (6) between described first rectification circuit (3) output terminal (A), (B), described divided circuit (6) is made of resistance (R3) and voltage stabilizing diode (D3) series connection.
9. according to any described three terminal regulator proving installation in the claim 1 to 6, it is characterized in that: connect power supply between described sample circuit (2) input end (E), (F) and detect socket (7), described power supply detects socket (7) and is made of jack (J4) and detachable resistance (R5) parallel connection.
10. according to any described three terminal regulator proving installation in the claim 1 to 6, it is characterized in that: described sample circuit (2) is a voltage sampling circuit, by resistance in series (R1), the sampling of (R2) dividing potential drop.
11. according to any described three terminal regulator proving installation in the claim 1 to 6, it is characterized in that: comprise second rectification circuit (11) and second source of stable pressure (12) in the described gauge outfit power supply (1), second rectification circuit (11) output terminal links to each other with second source of stable pressure (12) input end, second source of stable pressure (12) output terminal links to each other with the power end (S1+), (S1-) that detect gauge outfit (S), and described second source of stable pressure (12) is three terminal regulator (IC2).
12. according to any described three terminal regulator proving installation in the claim 1 to 6, it is characterized in that: the DC voltage of described first rectification circuit (3) output is 19V-22V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520065337 CN2824048Y (en) | 2005-09-27 | 2005-09-27 | Three-terminal voltage stabilizer tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520065337 CN2824048Y (en) | 2005-09-27 | 2005-09-27 | Three-terminal voltage stabilizer tester |
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| Publication Number | Publication Date |
|---|---|
| CN2824048Y true CN2824048Y (en) | 2006-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520065337 Expired - Lifetime CN2824048Y (en) | 2005-09-27 | 2005-09-27 | Three-terminal voltage stabilizer tester |
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| CN (1) | CN2824048Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI450479B (en) * | 2011-12-21 | 2014-08-21 | Hon Hai Prec Ind Co Ltd | Power circuit |
| CN104090243A (en) * | 2014-07-02 | 2014-10-08 | 格力电器（合肥）有限公司 | Voltage stabilizer testing tool |
| CN104360148A (en) * | 2014-12-04 | 2015-02-18 | 珠海格力电器股份有限公司 | Output voltage detection system for voltage stabilizing block of controller |
| CN104360147A (en) * | 2014-11-24 | 2015-02-18 | 中国航空工业集团公司洛阳电光设备研究所 | Test equipment for three-end voltage regulator |
| CN113567840A (en) * | 2021-09-08 | 2021-10-29 | 无锡力芯微电子股份有限公司 | High-precision detection method and circuit for dynamic response of power supply |
-
2005
- 2005-09-27 CN CN 200520065337 patent/CN2824048Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI450479B (en) * | 2011-12-21 | 2014-08-21 | Hon Hai Prec Ind Co Ltd | Power circuit |
| CN104090243A (en) * | 2014-07-02 | 2014-10-08 | 格力电器（合肥）有限公司 | Voltage stabilizer testing tool |
| CN104360147A (en) * | 2014-11-24 | 2015-02-18 | 中国航空工业集团公司洛阳电光设备研究所 | Test equipment for three-end voltage regulator |
| CN104360148A (en) * | 2014-12-04 | 2015-02-18 | 珠海格力电器股份有限公司 | Output voltage detection system for voltage stabilizing block of controller |
| CN113567840A (en) * | 2021-09-08 | 2021-10-29 | 无锡力芯微电子股份有限公司 | High-precision detection method and circuit for dynamic response of power supply |
| CN113567840B (en) * | 2021-09-08 | 2022-07-29 | 无锡力芯微电子股份有限公司 | High-precision detection method and circuit for dynamic response of power supply |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061004 |
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| EXPY | Termination of patent right or utility model |