CN220603540U - Circuit board test board - Google Patents
Circuit board test board Download PDFInfo
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- CN220603540U CN220603540U CN202322192996.8U CN202322192996U CN220603540U CN 220603540 U CN220603540 U CN 220603540U CN 202322192996 U CN202322192996 U CN 202322192996U CN 220603540 U CN220603540 U CN 220603540U
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Abstract
The utility model relates to the technical field of aviation equipment testing, in particular to a circuit board test board, which is characterized in that a 115VAC power supply voltage and current display interface, a 220VAC power supply switch interface, a 115VAC power supply switch interface, a discrete signal input switch interface, a signal test interface and a signal indicator lamp are arranged on a front panel; a 115VAC power supply voltage and current display module, a 220VAC power supply module, a 115VAC power supply module, a discrete signal input module and a signal test module are arranged in the chassis; the alternating current power supply required by the test of the tested piece is provided, the detection of power failure is realized, misoperation in the test process is effectively prevented, the test safety is ensured, and the test efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of aviation equipment testing, in particular to a circuit board test board.
Background
With the development of aircraft control technology, the application of automatic control technology and controllers on aircrafts is increasing. The control of the power supply is used as an important guarantee of the flight safety of the aircraft, and high requirements are put on the performance. Therefore, the accurate and comprehensive test of the performance of the power supply is of great significance in ensuring the normal operation of the control system. The existing power supply controller test system has the problems of inconvenient test operation, easy error in the test process and low test efficiency because of a plurality of used test devices and low integration level.
Disclosure of Invention
Aiming at the problems of more test devices, low integration level, inconvenient test operation, easy error in the test process and low test efficiency of the existing power supply controller test system, the utility model provides a circuit board test board, which is characterized in that a 115VAC power supply voltage and current display interface, a 220VAC power supply switch interface, a 115VAC power supply switch interface, a discrete signal input switch interface, a signal test interface and a signal indicator lamp are arranged on a front panel; a 115VAC power supply voltage and current display module, a 220VAC power supply module, a 115VAC power supply module, a discrete signal input module and a signal test module are arranged in the chassis; the alternating current power supply required by the test of the tested piece is provided, and the detection of power failure is realized.
The utility model has the following specific implementation contents:
a circuit board test board connected with a tested piece; the circuit board test board comprises a chassis, wherein the chassis comprises a front panel; the front panel comprises a 115VAC power supply voltage and current display interface, a 220VAC power supply switch interface, a 115VAC power supply switch interface, a discrete signal input switch interface, a signal test interface and a signal indicator lamp;
the inside of the case is provided with a 115VAC power supply voltage and current display module, a 220VAC power supply module, a 115VAC power supply module, a discrete signal input module and a signal test module;
the input end of the 220VAC power supply module is connected with a 220VAC power supply, and the output end of the 220VAC power supply module is connected with the interface of the 220VAC power supply switch;
the input end of the 115VAC power supply module is connected with a 115VAC power supply, and the output end of the 115VAC power supply module is connected with the 115VAC power supply switch interface;
the input end of the 115VAC power supply voltage and current display module is connected with the output end of the 115VAC power supply module, and the output end of the 115VAC power supply voltage and current display module is connected with the 115VAC power supply voltage and current display interface;
the input end of the discrete signal input module is connected with the input end of the 115VAC power supply voltage and current display module, and the output end of the discrete signal input module is connected with the discrete signal input switch interface;
the input end of the signal testing module is connected with the output end of the discrete signal input module, the output end of the signal testing module, the signal testing interface, the tested piece and the signal indicator lamp.
In order to better implement the utility model, further, the 220VAC power module includes a 220VAC socket XS1, a switch SW1, a fan M, a relay G1, and a socket XS5 connected in sequence;
the 220VAC socket XS1 is connected with a 220VAC power supply; the socket XS5 interfaces with the 220VAC power switch.
In order to better implement the present utility model, further, the 115VAC power module includes an a-phase ac current sensor U1, a B-phase ac current sensor U2, a C-phase ac current sensor U3, an a-phase ac voltage sensor U4, a B-phase ac voltage sensor U5, a C-phase ac voltage sensor U6, a contactor KM1, a socket XS2, and a switch SW2;
the input end of the socket XS2 is connected with a 115VAC power supply, and the output end of the socket XS2 is connected with the input end of the contactor KM1, the input ends of the A-phase alternating current voltage sensor U4, the B-phase alternating current voltage sensor U5 and the C-phase alternating current voltage sensor U6;
the output end of the contactor KM1 is connected with the input ends of the A-phase alternating current sensor U1, the B-phase alternating current sensor U2 and the C-phase alternating current sensor U3;
one end of the switch SW2 is lapped between the output end of the switch SW1 and the relay G1, and the other end of the switch SW2 is connected with the contactor KM 1;
the output ends of the phase A alternating current sensor U1, the phase B alternating current sensor U2, the phase C alternating current sensor U3, the phase A alternating current voltage sensor U4, the phase B alternating current voltage sensor U5 and the phase C alternating current voltage sensor U6 are connected with the input end of the 115VAC power supply voltage and current display module and the 115VAC power supply switch interface.
In order to better realize the utility model, the 115VAC power supply voltage and current display module further comprises a display controller U7 and a display controller U8;
the input end of the display controller U7 is connected with the output ends of the 220VAC power supply module, the A-phase alternating current sensor U1, the B-phase alternating current sensor U2 and the C-phase alternating current sensor U3, and the output end of the display controller U7 is connected with the 115VAC power supply voltage and current display interface;
the input end of the display controller U8 is connected with the output ends of the 220VAC power supply module, the A-phase alternating current voltage sensor U4, the B-phase alternating current voltage sensor U5 and the C-phase alternating current voltage sensor U6, and the output end of the display controller U8 is connected with the 115VAC power supply voltage and current display interface.
To better implement the present utility model, further, the discrete signal input module includes a socket XS3, a switch K1, a switch SW4, and a heater;
the input end of the socket XS3 is connected with the output end of the 115VAC power supply module and the output end of the switch K1, and the output end of the socket XS3 is connected with the input end of the heater;
the input end of the switch K1 is connected with the switch SW4 connected with a 24V power supply;
the output end of the heater is connected with the input end of the signal testing module.
In order to better realize the utility model, the signal testing module further comprises a socket XS4 and a signal testing circuit;
the input end of the socket XS4 is connected with the output end of the heater;
the input end of the signal testing circuit is connected with the output end of the tested piece through the socket XS4, and the output end of the testing circuit is connected with the signal indicator lamp and the signal testing interface through the socket XS 4.
The utility model has the following beneficial effects:
(1) According to the utility model, various functional test circuits are integrated on the test bench according to the test requirement of the power supply, various test functional modules and corresponding test interfaces are optimized, the comprehensive test of the power supply faults is realized, the test control operation is convenient, and the stability and the reliability of the circuit system of the test bench are high.
(2) According to the utility model, the corresponding interfaces are arranged on the front panel of the test case, the arrangement positions on the front panel are set, and the positions of the switches and the test interfaces in the test function area are optimally set, so that misoperation in the test process is effectively prevented, the test safety is ensured, and the test efficiency is effectively improved.
Drawings
FIG. 1 is a schematic diagram of a 220VAC power module circuit of the present utility model.
Fig. 2 is a schematic diagram of the 115VAC power module circuit of the present utility model.
Fig. 3 is a schematic circuit diagram of a first portion of the 115VAC supply voltage current display module of the present utility model.
Fig. 4 is a schematic diagram of a second portion of the circuit of the 115VAC power supply voltage current display module of the present utility model.
Fig. 5 is a schematic circuit diagram of a discrete signal input module according to the present utility model.
FIG. 6 is a schematic diagram of a first portion of a signal testing module circuit according to the present utility model.
FIG. 7 is a schematic diagram of a second portion of a signal testing module circuit according to the present utility model.
FIG. 8 is a schematic diagram of a third portion of a signal testing module circuit according to the present utility model.
Fig. 9 is a schematic diagram of a first portion of a cable connection of a circuit board test station according to the present utility model.
Fig. 10 is a schematic diagram of a second portion of the cable connection of the circuit board test stand of the present utility model.
Fig. 11 is a schematic diagram of a third portion of a cable connection of the circuit board test stand according to the present utility model.
Fig. 12 is a schematic diagram of a fourth cable connection of the circuit board test stand of the present utility model.
Fig. 13 is a schematic diagram of a fifth cable connection of the circuit board test stand according to the present utility model.
Fig. 14 is a schematic diagram of a sixth cable connection of the circuit board test stand of the present utility model.
Fig. 15 is a schematic view of a seventh cable connection of the circuit board test stand of the present utility model.
Fig. 16 is a schematic diagram of a layout structure of a front panel in the circuit board test stand according to the present utility model.
The device comprises a 1 VAC power supply voltage and current display interface, a 2 VAC power supply switch interface, a 220VAC power supply switch interface, a 3 VAC power supply switch interface, a 115VAC power supply switch interface, a 4 discrete signal input switch interface, a 5 signal test interface, a 6 signal indicator lamp.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it should be understood that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and therefore should not be considered as limiting the scope of protection. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; or may be directly connected, or may be indirectly connected through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1:
the embodiment provides a circuit board test board which is connected with a tested piece; the circuit board test board comprises a chassis, wherein the chassis comprises a front panel; the front panel comprises a 115VAC power supply voltage and current display interface 1, a 220VAC power supply switch interface 2, a 115VAC power supply switch interface 3, a discrete signal input switch interface 4, a signal test interface 5 and a signal indicator lamp 6;
the inside of the case is provided with a 115VAC power supply voltage and current display module, a 220VAC power supply module, a 115VAC power supply module, a discrete signal input module and a signal test module;
the input end of the 220VAC power supply module is connected with a 220VAC power supply, and the output end of the 220VAC power supply module is connected with the 220VAC power supply switch interface 2;
the input end of the 115VAC power supply module is connected with a 115VAC power supply, and the output end is connected with the 115VAC power supply switch interface 3;
the input end of the 115VAC power supply voltage and current display module is connected with the output end of the 115VAC power supply module, and the output end of the 115VAC power supply voltage and current display module is connected with the 115VAC power supply voltage and current display interface 1;
the input end of the discrete signal input module is connected with the input end of the 115VAC power supply voltage and current display module, and the output end of the discrete signal input module is connected with the discrete signal input switch interface 4;
the input end of the signal testing module is connected with the output end of the discrete signal input module, the output end of the signal testing module, the signal testing interface 5, the tested piece and the signal indicating lamp 6.
Working principle: in the embodiment, a 115VAC power supply voltage and current display interface 1, a 220VAC power supply switch interface 2, a 115VAC power supply switch interface 3, a discrete signal input switch interface 4, a signal test interface 5 and a signal indicator lamp 6 are arranged on a front panel; a 115VAC power supply voltage and current display module, a 220VAC power supply module, a 115VAC power supply module, a discrete signal input module and a signal test module are arranged in the chassis; the alternating current power supply required by the test of the tested piece is provided, and the detection of power failure is realized.
Example 2:
in this embodiment, on the basis of the above embodiment 1, as shown in fig. 1, the 220VAC power module includes a 220VAC socket XS1, a switch SW1, a fan M, a relay G1, and a socket XS5, which are sequentially connected;
the 220VAC socket XS1 is connected with a 220VAC power supply; the socket XS5 is connected to the 220VAC mains switch interface 2.
Working principle: the 220VAC power module socket XS1 provided by the embodiment is a 220VAC socket, the switch SW1 is a KD10-211/R220 double-pole double-throw switch, the relay G1 is a 24VDC/2A relay, and the socket XS5 is an XPD12-3P socket.
Other portions of this embodiment are the same as those of embodiment 1 described above, and thus will not be described again.
Example 3:
in this embodiment, on the basis of any one of the above embodiments 1 to 2, the 115VAC power module shown in fig. 2 includes an a-phase ac current sensor U1, a B-phase ac current sensor U2, a C-phase ac current sensor U3, an a-phase ac voltage sensor U4, a B-phase ac voltage sensor U5, a C-phase ac voltage sensor U6, a contactor KM1, a socket XS2, and a switch SW2;
the input end of the socket XS2 is connected with a 115VAC power supply, and the output end of the socket XS2 is connected with the input end of the contactor KM1, the input ends of the A-phase alternating current voltage sensor U4, the B-phase alternating current voltage sensor U5 and the C-phase alternating current voltage sensor U6;
the output end of the contactor KM1 is connected with the input ends of the A-phase alternating current sensor U1, the B-phase alternating current sensor U2 and the C-phase alternating current sensor U3;
one end of the switch SW2 is lapped between the output end of the switch SW1 and the relay G1, and the other end of the switch SW2 is connected with the contactor KM 1;
the output ends of the phase A alternating current sensor U1, the phase B alternating current sensor U2, the phase C alternating current sensor U3, the phase A alternating current voltage sensor U4, the phase B alternating current voltage sensor U5 and the phase C alternating current voltage sensor U6 are connected with the input end of the 115VAC power supply voltage current display module and the 115VAC power supply switch interface 3.
Working principle: the socket XS2 is a Y50DX-1404ZJ10 connector, and the A-phase alternating current sensor U1, the B-phase alternating current sensor U2 and the C-phase alternating current sensor U3 are WBI412N95 alternating current sensors; the alternating voltage sensor U4 and the alternating voltage sensor U5 and the alternating voltage sensor U6 are WBV412M05 alternating voltage sensors; switch SW2 is a KD10-111/R220 single pole double throw switch.
Other portions of this embodiment are the same as any of embodiments 1 to 2, and thus will not be described again.
Example 4:
in this embodiment, on the basis of any one of the above embodiments 1 to 3, as shown in fig. 3 and 4, the 115VAC power supply voltage and current display module includes a display controller U7 and a display controller U8;
the input end of the display controller U7 is connected with the output ends of the 220VAC power supply module, the A-phase alternating current sensor U1, the B-phase alternating current sensor U2 and the C-phase alternating current sensor U3, and the output end of the display controller U7 is connected with the 115VAC power supply voltage and current display interface 1;
the input end of the display controller U8 is connected with the 220VAC power supply module, the A-phase alternating current voltage sensor U4, the B-phase alternating current voltage sensor U5 and the C-phase alternating current voltage sensor U6, and the output end of the display controller U8 is connected with the 115VAC power supply voltage and current display interface 1.
Working principle: the display controller U7 and the display controller U8 provided in this embodiment are SWP-GFS431 display controllers.
Other portions of this embodiment are the same as any of embodiments 1 to 3, and thus will not be described again.
Example 5:
in this embodiment, on the basis of any one of the above embodiments 1 to 4, as shown in fig. 5, the discrete signal input module includes a socket XS3, a switch K1, a switch SW4, and a heater;
the input end of the socket XS3 is connected with the output end of the 115VAC power supply module and the output end of the switch K1, and the output end of the socket XS3 is connected with the input end of the heater;
the input end of the switch K1 is connected with the switch SW4 connected with a 24V power supply;
the output end of the heater is connected with the input end of the signal testing module.
Working principle: the socket XS3 provided in this embodiment is a Y50X-1808Z10K connector, the switch K1 is a RELAY SPDT single pole double throw switch, and the switch SW4 is a single pole double throw switch KN61-102.
The heater comprises a resistor R20, a photodiode D12, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R22, a photodiode D13 and a photodiode D14;
the resistor R20 is a 40K-2W resistor, the resistor R1, the resistor R2, the resistor R3, the resistor R4, the resistor R5 and the resistor R6 are 30R-1200W resistors, and the resistor R22 is a 40K-2W resistor.
Other portions of this embodiment are the same as any of embodiments 1 to 4, and thus will not be described again.
Example 6:
in this embodiment, on the basis of any one of the above embodiments 1 to 5, as shown in fig. 6, 7 and 8, the signal testing module includes a socket XS4 and a signal testing circuit;
the input end of the socket XS4 is connected with the output end of the heater;
the input end of the signal testing circuit is connected with the output end of the tested piece through the socket XS4, and the output end of the testing circuit is connected with the signal indicator lamp 6 and the signal testing interface 5 through the socket XS 4.
Working principle: socket XS4 is provided in this embodiment as a Y11X-20 electrical connector.
The signal test circuit comprises a photodiode D1, a photodiode D2, a photodiode D3, a photodiode D4, a photodiode D5, a photodiode D6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a switch SW5, a switch SW6, a switch SW7, a switch SW8, a switch SW9, a switch SW10, a switch SW11, a switch SW12, a switch SW13, a switch SW14 and a resistor tank RP1, wherein the resistor R7 is a 1.5K-25W resistor, the resistor R8 is a 24K-2W resistor, the switch SW5, the switch SW6 and the switch SW7 are K12Y-2S single-knife double-switch, the switch SW8, the switch SW9 and the switch SW10 are K12Y-2b single-knife double-throw switches, the resistor R9, the resistor R10, the resistor R11, the resistor R12, the resistor R13, the resistor R15, the resistor R16, the resistor R17, the resistor R18 and the switch R18 are single-knife double-throw switches SW 4.12 and the switch SW 4.12-12-2W.
Other portions of this embodiment are the same as any of embodiments 1 to 5, and thus will not be described again.
Example 7:
this embodiment is described in detail with reference to one specific embodiment, as shown in fig. 9, 10, 11, 12, 13, 14, 15, and 16, based on any one of embodiments 1 to 6.
The test bench proposed in this embodiment is a PN:3530-0121 circuit board. Various control switches on the test bench panel are operated by a user, and various performance tests of the circuit board can be effectively completed by matching with external instruments and meters.
The test bench mainly comprises a chassis, a front/rear panel and internal components. The components in the test bench mainly comprise a power supply, a discrete quantity input switch, a discrete quantity output indicator lamp, a signal test hole and the like. The test bench adopts a manual working mode, provides an alternating current power supply required by the test of the tested piece, provides a current and voltage measuring instrument and provides a discrete quantity input/output test circuit. The performance of UUT can be effectively tested.
An alternating current power supply: three-phase 115VAC + -5%, 10A.
Discrete quantity input: 11 ways.
Discrete quantity output: 14 ways (indicator lights).
TABLE 1 rear Panel "HCSN-235 test Cable" interface definition Table
Switch description:
| switch | Description of the utility model |
| 220VAC | 220VAC power switch |
| 115VAC | 115VAC power switch |
The power supply provided in this embodiment includes: ac power supply 1:220VAC,1A; ac power supply 2: three-phase 115VAC,10A.
The environmental parameters set in this embodiment are: temperature: -10 ℃ to +50 ℃; humidity: 10% RH to 85% RH; air pressure: field pressure; the indoor fixed point should be used in the environment of no dust, no acid or alkali and other corrosive gases, no strong mechanical vibration impact and strong electromagnetic field.
The application steps of the embodiment are as follows:
1) Preparing before testing;
step 1: the front panel 220VAC, 115VAC switches are placed in the sprung position, and all toggle switches are thrown down. The shop 220VAC power was connected to the test stand via the 220VAC power cable and the shop 115VAC power was connected to the test stand via the three-phase 115VAC power cord.
Step 2: the front panel 220VAC power switch is pressed, the confirmation switch is lighted with the indicator light, the header is lighted, the voltmeter displays 115VAC + -2%, and then the 220VAC power switch is sprung.
Step 3: the tested piece is connected to the test bench through the test cable.
2) Testing;
step 4: the front panel 220VAC switch is pressed first, then the 115VAC switch is pressed. And then testing according to the testing procedure on the CMM manual.
3) The test is completed;
step 5: the front panel 220VAC, 115VAC switches are sprung.
Step 6: and (5) disconnecting all the connecting lines and storing the equipment according to the regulations.
The following operations are performed in the operation preamble:
1) Before the power is applied, it is confirmed that the front panel 220VAC and 115VAC switches are in the sprung positions, and a serious inspection is performed to ensure that no extra conductors such as wires are suspended on the test stand.
2) And the plug of the tested piece is not plugged in and pulled out in a live mode, all the switches are disconnected or thrown down after the test is finished, and all the cables are disconnected.
3) In the event of an emergency, the 220VAC switch is first tripped.
The verification period of this embodiment is once a two year period.
Power failure:
1) 220VAC indicator light is not on: whether the 220VAC power line is broken or not is checked, and whether the 220VAC power switch is damaged or not is checked.
2) 115VAC power output is not available: and checking whether the AC contactor works normally, whether a power line is broken or not, and whether the 115VAC power switch wiring is correct or not.
Other portions of this embodiment are the same as any of embodiments 1 to 6, and thus will not be described again.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.
Claims (6)
1. A circuit board test board connected with a tested piece; the circuit board test board comprises a chassis, wherein the chassis comprises a front panel; the front panel is characterized by comprising a 115VAC power supply voltage and current display interface (1), a 220VAC power supply switch interface (2), a 115VAC power supply switch interface (3), a discrete signal input switch interface (4), a signal test interface (5) and a signal indicator lamp (6);
the inside of the case is provided with a 115VAC power supply voltage and current display module, a 220VAC power supply module, a 115VAC power supply module, a discrete signal input module and a signal test module;
the input end of the 220VAC power supply module is connected with a 220VAC power supply, and the output end of the 220VAC power supply module is connected with the 220VAC power supply switch interface (2);
the input end of the 115VAC power supply module is connected with a 115VAC power supply, and the output end of the 115VAC power supply module is connected with the 115VAC power supply switch interface (3);
the input end of the 115VAC power supply voltage and current display module is connected with the output end of the 115VAC power supply module, and the output end of the 115VAC power supply voltage and current display module is connected with the 115VAC power supply voltage and current display interface (1);
the input end of the discrete signal input module is connected with the input end of the 115VAC power supply voltage and current display module, and the output end of the discrete signal input module is connected with the discrete signal input switch interface (4);
the input end of the signal testing module is connected with the output end of the discrete signal input module, the output end of the signal testing module, the signal testing interface (5), the tested piece and the signal indicating lamp (6).
2. The circuit board test stand of claim 1, wherein the 220VAC power module comprises a 220VAC outlet XS1, a switch SW1, a fan M, a relay G1, and an outlet XS5 connected in sequence;
the 220VAC socket XS1 is connected with a 220VAC power supply; the socket XS5 is connected to the 220VAC mains switch interface (2).
3. The circuit board test stand of claim 2, wherein the 115VAC power module comprises a phase a ac current sensor U1, a phase B ac current sensor U2, a phase C ac current sensor U3, a phase a ac voltage sensor U4, a phase B ac voltage sensor U5, a phase C ac voltage sensor U6, a contactor KM1, a socket XS2, and a switch SW2;
the input end of the socket XS2 is connected with a 115VAC power supply, and the output end of the socket XS2 is connected with the input end of the contactor KM1, the input ends of the A-phase alternating current voltage sensor U4, the B-phase alternating current voltage sensor U5 and the C-phase alternating current voltage sensor U6;
the output end of the contactor KM1 is connected with the input ends of the A-phase alternating current sensor U1, the B-phase alternating current sensor U2 and the C-phase alternating current sensor U3;
one end of the switch SW2 is lapped between the output end of the switch SW1 and the relay G1, and the other end of the switch SW2 is connected with the contactor KM 1;
the output ends of the phase A alternating current sensor U1, the phase B alternating current sensor U2, the phase C alternating current sensor U3, the phase A alternating current voltage sensor U4, the phase B alternating current voltage sensor U5 and the phase C alternating current voltage sensor U6 are connected with the input end of the 115VAC power supply voltage current display module and the 115VAC power supply switch interface (3).
4. A circuit board test stand according to claim 3, wherein the 115VAC power supply voltage current display module comprises a display controller U7, a display controller U8;
the input end of the display controller U7 is connected with the output ends of the 220VAC power supply module, the A-phase alternating current sensor U1, the B-phase alternating current sensor U2 and the C-phase alternating current sensor U3, and the output end of the display controller U7 is connected with the 115VAC power supply voltage and current display interface (1);
the input end of the display controller U8 is connected with the 220VAC power supply module, the A-phase alternating current voltage sensor U4, the B-phase alternating current voltage sensor U5 and the C-phase alternating current voltage sensor U6, and the output end of the display controller U8 is connected with the 115VAC power supply voltage and current display interface (1).
5. The circuit board test station of claim 4, wherein the discrete signal input module comprises a socket XS3, a switch K1, a switch SW4, and a heater;
the input end of the socket XS3 is connected with the output end of the 115VAC power supply module and the output end of the switch K1, and the output end of the socket XS3 is connected with the input end of the heater;
the input end of the switch K1 is connected with the switch SW4 connected with a 24V power supply;
the output end of the heater is connected with the input end of the signal testing module.
6. The circuit board test stand of claim 5, wherein the signal test module comprises a socket XS4, a signal test circuit;
the input end of the socket XS4 is connected with the output end of the heater;
the input end of the signal testing circuit is connected with the output end of the tested piece through the socket XS4, and the output end of the testing circuit is connected with the signal indicator lamp (6) and the signal testing interface (5) through the socket XS 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322192996.8U CN220603540U (en) | 2023-08-15 | 2023-08-15 | Circuit board test board |
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