CN206773088U - A kind of on-off test device - Google Patents
A kind of on-off test device Download PDFInfo
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- CN206773088U CN206773088U CN201720061009.2U CN201720061009U CN206773088U CN 206773088 U CN206773088 U CN 206773088U CN 201720061009 U CN201720061009 U CN 201720061009U CN 206773088 U CN206773088 U CN 206773088U
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Abstract
The utility model belongs to system testing field, there is provided a kind of on-off test device；The utility model passes through including power module, time block, time regulating module and modular converter；Power module generates the first power supply according to input power, first power supply is powered to time block, time regulating module generation adjustment voltage, time block is according to the original switch machine pulse signal of adjustment voltage generation cycle, and modular converter is according to original switch machine pulse signal generation first switch machine pulse signal and second switch machine pulse signal with to system under test (SUT) progress switching on and shutting down test；Improve the stability of system under test (SUT).
Description
Technical field
The utility model belongs to system testing field, more particularly to a kind of on-off test device.
Background technology
Existing test system includes electronic installation, power supply unit and test device, and the test device includes：AC power
Switching device, to receive the off signal of electronic installation transmission, close the power supply unit and export the first control signal；
Delay timer, when receiving first control signal, to start timing and the control of output second when first scheduled time
Signal processed；Start timer, when receiving second control signal, to start timing and be exported when second scheduled time
Enabling signal；Starting switch, when receiving the enabling signal, to start the electronic installation；And test cell, at this
The electronic installation is tested when electronic installation is activated.Using test system provided by the invention, can automatic switching, and can be with complete
Contract fully device under test power supply.Therefore its shutdown is direct closing power supply, and for the complication system based on microprocessor, directly close
Closing power supply easily causes system unstable.
Therefore, prior art, which exists, directly closes the problem of power supply easily causes system under test (SUT) unstable.
Utility model content
The utility model provides a kind of on-off test device, it is intended to solves directly to close power supply present in prior art
The problem of easily causing system under test (SUT) unstable.
The utility model is achieved in that a kind of on-off test device, and the on-off test device includes power supply
Module, time block, time regulating module and modular converter；
The output end of the power module is connected with the first input end of the time block, the output of the time block
End is connected with the input of the modular converter, the 3rd input of the second input and the time block of the time block
End is connected with the second output end of the time regulating module and the first output end of the time regulating module respectively；
The power module generates the first power supply according to input power, and first power supply is supplied the time block
Electricity, the time regulating module generation adjustment voltage, the time block are original according to the adjustment voltage generation cycle
Switching on and shutting down pulse signal, the modular converter according to the original switch machine pulse signal generate first switch machine pulse signal and
Second switch machine pulse signal is with to system under test (SUT) progress switching on and shutting down test.
The beneficial effect that technical scheme provided by the utility model is brought is：It was found from above-mentioned the utility model, due to bag
Include power module, time block, time regulating module and modular converter；Power module is according to the electricity of input power generation first
Source, the first power supply are powered to time block, and time regulating module generation adjustment voltage, time block is given birth to according to adjustment voltage
Into periodic original switch machine pulse signal, modular converter generates first switch machine pulse according to original switch machine pulse signal
Signal and second switch machine pulse signal are with to system under test (SUT) progress switching on and shutting down test；Due to carrying out switching on and shutting down using pulse signal
Test, therefore improve the stability of system under test (SUT).
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of function structure chart for the on-off test device that the utility model embodiment provides；
Fig. 2 is another function structure chart for the on-off test device that the utility model embodiment provides；
Fig. 3 is a kind of exemplary circuit structure chart for the on-off test device that the utility model embodiment provides.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Fig. 1 shows the modular structure for the on-off test device that the utility model embodiment provides, for convenience of description,
The part related to the utility model embodiment is illustrate only, details are as follows：
A kind of on-off test device 10, it includes power module 01, time block 02, time regulating module 03 and turned
Change the mold block 04.
Wherein, the output end of power module 01 is connected with the first input end of time block 02, the output of time block 02
End is connected with the input of modular converter 04, the second input of time block 02 and the 3rd input difference of time block 02
It is connected with the second output end of time regulating module 03 and the first output end of time regulating module 03.
In above-mentioned on-off test device 10, power module 01 generates the first power supply, the first power supply according to input power
Time block 02 is powered, the generation adjustment voltage of time regulating module 03, time block 02 is according to adjustment voltage generation week
The original switch machine pulse signal of phase property, modular converter 04 generates the pulse of first switch machine according to original switch machine pulse signal to be believed
Number and second switch machine pulse signal with to system under test (SUT) carry out switching on and shutting down test.
As shown in Fig. 2 on-off test device also includes indicating module 05；The output end and indicating module of power module 01
05 first input end connection, the output end of time block 02 are connected with the second input of indicating module 05；First power supply pair
Indicating module 05 is powered, and indicating module 05 is carried out according to original switch machine pulse signal to the state of on-off test device
Instruction.
Fig. 3 shows a kind of exemplary circuit structure for the on-off test device 10 that the utility model embodiment provides, and is
It is easy to illustrate, illustrate only the part related to the utility model embodiment, details are as follows：
Power module 01 includes the first connector J1, the first double diode D1 and the second double diode D2；First connector
J1 first end is connected with the first double diode D1 the first positive pole and the second double diode D2 the first positive pole, the first connector
J1 the second end is connected with the first double diode D1 the second positive pole and the second double diode D2 the second positive pole, first pair of two pole
Pipe D1 negative pole is the output end of power module 01, and the second double diode D2 negative pole is connected with power supply.
Time block 02 includes timer U1, the first electric capacity C1, the second electric capacity C2, first resistor R1 and the tenth resistance R10；
Timer U1 power end VCC, timer U1 reset terminal R, first resistor R1 first end, the first electric capacity C1 first end and
Tenth resistance R10 first end collectively forms the first input end of time block 02, timer U1 discharge end D and first resistor
R1 the second end collectively forms the second input of time block 02, and timer U1 threshold value end TH's and timer U1 touches
Originator TR collectively forms the first end company of the 3rd input of time block 02, timer U1 control terminal CO and the second electric capacity C2
Connect, timer U1 output end OUT and the tenth resistance R10 the second end collectively form the output end of time block 02, timer
U1 earth terminal GND and the second electric capacity C2 the second end with being connected to power supply altogether.
Timer U1 is model NE555 timer chip.
Time regulating module 03 includes contact pin JTME, the first diode D3, the second diode D4, the 3rd electric capacity C3, second
Resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8 and
9th resistance R9；The common structure of first end of first diode D3 positive pole, the second diode D4 negative pole and the 3rd electric capacity C3
Into the first output end of time management module, the first diode D3 negative pole and contact pin JTME first end 1, the of contact pin JTME
Three ends 3, contact pin JTME the 5th end 5, contact pin JTME the 7th end 7, contact pin JTME the 9th end 9, the 11st of contact pin JTME the
15th end 15 at end 11, contact pin JTME the 13rd end 13 and contact pin JTME connects, contact pin JTME the second end 2 and second
Resistance R2 first end connection, contact pin JTME the 4th end 4 are connected with 3rd resistor R3 first end, contact pin JTME the 6th end
6 are connected with the 4th resistance R4 first end, and contact pin JTME the 8th end 8 is connected with the 5th resistance R5 first end, contact pin JTME
The tenth end 10 be connected with the 6th resistance R6 first end, contact pin JTME the 12nd end 12 and the 7th resistance R7 first end connect
Connect, contact pin JTME the 14th end 14 is connected with the 8th resistance R8 first end, contact pin JTME the 16th end 16 and the 9th electricity
Hinder R9 first end connection, the second diode D4 positive pole, second resistance R2 the second end, 3rd resistor R3 the second end, the
Four resistance R4 the second end, the 5th resistance R5 the second end, the 6th resistance R6 the second end, the 7th resistance R7 the second end,
Eight resistance R8 the second end and the 9th resistance R9 the second end collectively form the second output end of time regulating module 03.
Modular converter 04 includes the second connector J2, the first FET M1, the second FET M2, the 11st resistance
R11, the 12nd resistance R12, the 13rd resistance R13 and the 14th resistance R14；11st resistance R11 first end and the tenth
Two resistance R12 first end collectively forms the input of modular converter 04, the 11st resistance R11 the second end and the first field-effect
Pipe M1 grid connection, the first FET M1 drain electrode are connected with the 13rd resistance R13 first end, the 13rd resistance R13
The second end be connected with the second connector J2 first end 1, the 12nd resistance R12 the second end and the second FET M2 grid
Pole is connected, and the second FET M2 drain electrode is connected with the 14th resistance R14 first end, the 14th resistance R14 the second end
It is connected with the second connector J2 the second end 2, the first FET M1 source electrode and the second FET M2 source electrode are connected to altogether
Power supply.
Indicating module 05 includes the 3rd FET M3, LED, the electricity of the 15th resistance R15 and the 16th
Hinder R16；16th resistance R16 first end is the first input end of indicating module 05, and the 15th resistance R15 first end is finger
Show the second input of module 05, the 15th resistance R15 the second end is connected with the 3rd FET M3 grid, the 3rd effect
Should pipe M3 drain electrode and the negative pole of LED connect, the of the positive pole of LED and the 16th resistance R16
Two ends are connected, and the 3rd FET M3 source electrode is connected with power supply.
The on-off test device 10 shown in Fig. 3 is described further below in conjunction with operation principle：
In specific implementation process, the first connector J1 access input powers simultaneously generate the first power supply from the first double diode
D1 is exported, and the first power supply is powered to timer U1 and LED, can be with connecting contact pin JTME not by jump cap
With end (such as end 2 of first end 1 and second, the 3rd end 3 and the 4th end 4, the 5th end 5 and the 6th end 6), and select different adjustment
Resistance (such as second resistance R2 to the 9th resistance R9), different adjustment resistance make time regulating module generate different adjustment electricity
Pressure, wherein adjustment voltage include first adjustment voltage and second adjustment voltage, first adjustment voltage from the first diode D3 just
Pole and the second diode D4 negative pole export, and the second adjustment voltage is defeated from the second diode D4 positive pole and one end of adjustment resistance
Go out, timer U1 according to adjustment voltage generation cycle original switch machine pulse signal, wherein, original switch machine pulse signal
Width and the cycle correspond to adjustment voltage, original switch machine pulse signal passes through timer U1 output end OUT output, timing
Device U1 output end OUT is pulled to the first power supply to strengthen the driving energy of original switch machine pulse signal by the tenth resistance R10
Power, the first FET M1, the second FET M2 are anti-phase to the progress of original switch machine pulse signal respectively to be opened with generation first
Shut down pulse signal and second switch machine pulse signal, the first switch machine pulse that system under test (SUT) exports according to the second connector J2
Signal and second switch machine pulse signal carry out switching on and shutting down test.
Wherein, the width of original switch machine pulse signal and cycle are by first resistor R1, adjustment resistance and the 3rd electric capacity C3
Parameter determine that the utility model is by setting multiple selectable adjustment resistance to realize the width of original switch machine pulse signal
Degree and the adjustment in cycle.
Because power module employs the structure of two double diodes, therefore connect the first connector J1 battery either just
The first power supply of positive can be exported by connecing still reversal connection.
Because the effective switching on and shutting down signal of system under test (SUT) is low level signal, because the second connector J2 can be exported simultaneously
Low level switching on and shutting down signal, therefore the second connector J2 is either just being connect with system under test (SUT) or reversal connection can be realized effectively
Switching on and shutting down.
In summary, the utility model embodiment by including power module, time block, time regulating module and turn
Change the mold block；Power module generates the first power supply according to input power, and the first power supply is powered to time block, time adjustment mould
Block generation adjustment voltage, time block is according to the original switch machine pulse signal of adjustment voltage generation cycle, modulus of conversion root tuber
First switch machine pulse signal and second switch machine pulse signal are generated according to original switch machine pulse signal to enter to system under test (SUT)
Row switching on and shutting down are tested；Due to carrying out switching on and shutting down test using pulse signal, therefore improve the stability of system under test (SUT).
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
- A kind of 1. on-off test device, it is characterised in that the on-off test device include power module, time block, Time regulating module and modular converter；The output end of the power module is connected with the first input end of the time block, the output end of the time block with The input connection of the modular converter, the second input of the time block and the 3rd input of the time block point It is not connected with the second output end of the time regulating module and the first output end of the time regulating module；The power module generates the first power supply according to input power, and first power supply is powered to the time block, The time regulating module generation adjustment voltage, the time block is according to the original switch for adjusting voltage generation cycle Machine pulse signal, the modular converter generate first switch machine pulse signal and second according to the original switch machine pulse signal Switching on and shutting down pulse signal is with to system under test (SUT) progress switching on and shutting down test.
- 2. on-off test device as claimed in claim 1, it is characterised in that the on-off test device also includes instruction Module；The output end of the power module is connected with the first input end of the indicating module, the output end of the time block with The second input connection of the indicating module；First power supply is powered to the indicating module, and the indicating module is according to the original switch machine pulse signal The state of the on-off test device is indicated.
- 3. on-off test device as claimed in claim 1, it is characterised in that the power module include the first connector, First double diode and the second double diode；The of first positive pole of the first end of first connector and first double diode and second double diode One positive pole connects, second positive pole and second pair two poles of the second end of first connector with first double diode The second positive pole connection of pipe, the negative pole of first double diode are the output end of the power module, second pair of two pole The negative pole of pipe is connected with power supply.
- 4. on-off test device as claimed in claim 1, it is characterised in that the time block includes timer, first Electric capacity, the second electric capacity, first resistor and the tenth resistance；The power end of the timer, the reset terminal of the timer, the first end of the first resistor, first electric capacity First end and the first end of the tenth resistance collectively form the first input end of the time block, the electric discharge of the timer End and the second end of the first resistor collectively form the second input of the time block, the threshold value of the timer The triggering end of end and the timer collectively forms the 3rd input of the time block, the control terminal of the timer and institute State the first end connection of the second electric capacity, it is described fixed that the second end of the output end of the timer and the tenth resistance collectively forms When module output end, the second end of the earth terminal of the timer and second electric capacity with being connected to power supply altogether.
- 5. on-off test device as claimed in claim 4, it is characterised in that the timer is determining for model NE555 When device chip.
- 6. on-off test device as claimed in claim 1, it is characterised in that the time regulating module includes contact pin, the One diode, the second diode, the 3rd electric capacity, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, Seven resistance, the 8th resistance and the 9th resistance；The first end of the positive pole of first diode, the negative pole of second diode and the 3rd electric capacity collectively forms described First output end of time regulating module, the negative pole of first diode and the first end of the contact pin, the of the contact pin Three ends, the 5th end of the contact pin, the 7th end of the contact pin, the 9th end of the contact pin, the tenth one end of the contact pin, institute State the 13rd end of contact pin and the 15th end connection of the contact pin, the second end of the contact pin and the first end of second resistance Connection, the 4th end of the contact pin and the first end of 3rd resistor connect, the 6th end of the contact pin and the first of the 4th resistance End connection, the 8th end of the contact pin is connected with the first end of the 5th resistance, and the of the tenth end of the contact pin and the 6th resistance One end is connected, and the 12nd end of the contact pin is connected with the first end of the 7th resistance, the 14th end of the contact pin and the 8th electricity The first end connection of resistance, the 16th end of the contact pin are connected with the first end of the 9th resistance, the positive pole of second diode, Second end of the second resistance, the second end of the 3rd resistor, the second end of the 4th resistance, the 5th resistance Second end, the second end of the 6th resistance, the second end of the 7th resistance, the second end of the 8th resistance and described Second end of the 9th resistance collectively forms the second output end of the time regulating module.
- 7. on-off test device as claimed in claim 1, it is characterised in that the modular converter include the second connector, First FET, the second FET, the 11st resistance, the 12nd resistance, the 13rd resistance and the 14th resistance；The first end of 11st resistance and the first end of the 12nd resistance collectively form the input of the modular converter End, the second end of the 11st resistance are connected with the grid of first FET, the drain electrode of first FET It is connected with the first end of the 13rd resistance, the second end of the 13rd resistance and the first end 1 of second connector Connection, the second end of the 12nd resistance are connected with the grid of second FET, the leakage of second FET Pole is connected with the first end of the 14th resistance, the second end of the 14th resistance and the second end of second connector The source electrode of 2 connections, the source electrode of first FET and second FET with being connected to power supply altogether.
- 8. on-off test device as claimed in claim 2, it is characterised in that the indicating module includes the 3rd field-effect Pipe, light emitting diode, the 15th resistance and the 16th resistance；The first end of 16th resistance is the first input end of the indicating module, and the first end of the 15th resistance is Second input of the indicating module, the second end of the 15th resistance are connected with the grid of the 3rd FET, The drain electrode of 3rd FET is connected with the negative pole of the light emitting diode, the positive pole of the light emitting diode and described the The second end connection of 16 resistance, the source electrode of the 3rd FET are connected with power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061009.2U CN206773088U (en) | 2017-01-18 | 2017-01-18 | A kind of on-off test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720061009.2U CN206773088U (en) | 2017-01-18 | 2017-01-18 | A kind of on-off test device |
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| Publication Number | Publication Date |
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| CN206773088U true CN206773088U (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720061009.2U Active CN206773088U (en) | 2017-01-18 | 2017-01-18 | A kind of on-off test device |
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| CN (1) | CN206773088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548969A (en) * | 2018-03-23 | 2018-09-18 | 深圳市创荣发电子有限公司 | Power on/off tester |
-
2017
- 2017-01-18 CN CN201720061009.2U patent/CN206773088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548969A (en) * | 2018-03-23 | 2018-09-18 | 深圳市创荣发电子有限公司 | Power on/off tester |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An on-off test device Effective date of registration: 20220701 Granted publication date: 20171219 Pledgee: Bank of Communications Limited Shenzhen Branch Pledgor: Shenzhen Hengyang Data Co.,Ltd. Registration number: Y2022340000011 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20171219 Pledgee: Bank of Communications Limited Shenzhen Branch Pledgor: Shenzhen Hengyang Data Co.,Ltd. Registration number: Y2022340000011 |