CN103135051B - Test fixture for power source restarting - Google Patents
Test fixture for power source restarting Download PDFInfo
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- CN103135051B CN103135051B CN201110396028.8A CN201110396028A CN103135051B CN 103135051 B CN103135051 B CN 103135051B CN 201110396028 A CN201110396028 A CN 201110396028A CN 103135051 B CN103135051 B CN 103135051B
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Abstract
A test fixture for power source restarting is suitable for an electronic device. The test fixture for the power source restarting comprises a circuit board which is connected on the electronic device in an electrical mode, a first restarting circuit, a second restarting circuit and a timing sequence control unit, wherein the first restarting circuit, the second restarting circuit and the timing sequence control unit are arranged on the circuit board in an electrical mode, the first restarting circuit and the second restarting circuit receive a control signal of the electronic device through a signal receiving end of the circuit board and adjusts the voltage level of a restarting control end of the circuit board according to the control signal, and the timing sequence control unit sequentially controls the first restarting circuit to reduce the voltage level and controls the second restarting circuit to recover the voltage level.
Description
【Technical field】
The present invention restarts measurement jig with regard to a kind of measurement jig, particularly a kind of power supply.
【Background technology】
At present in the measuring technology of electronic installation, most basic test event is with regard to electronic device power
The test of machine open/close, stable electric power on/off machine function is that electronic installation can be with the premise of normal operation, more because current
Industrial environment in, the quantity of electronic devices under test may be a lot, if being detected, it must one by one with Traditional Man test mode
Sizable manpower need to be expended and repeatedly press restarting key and tested on electronic installation, this restarts key and is usually arranged at electricity
Physical button in sub-device, so will make test job become very big burden, therefore leads to electronic device power ON/OFF
The test job of machine becomes in current electronic installation flow process such as quality testing before producing, manufacturing and dispatch from the factory, and quite arduously, consumes
When a project.
Automatic test mode common at present, is typically merely emulated by software program, and by some
Port, such as universal input export (GPIO), directly the function end of restarting on electronic installation are sent one and restart signal, to produce
Raw emulation voltage levvl replys the signal waveform change for primary voltage level again after being pulled low, then by judging this signal waveform
Variable quantity restart produced by key voltage levvl change simulating actual the pressing of user, to trigger the power supply weight of electronic installation
Open function and carry out dependence test.
But it is because that current circuit design is gradually complicated, uses merely the mode of software signal emulation, be sometimes difficult to really
Assume the change of actual hardware action in fact, such as the rated voltage on universal input output (GPIO) or the driving force of electric current are not
Foot, causes the variable quantity of signal waveform to be unable to reach the requirement that triggering power supply restarts signal, or the running of software program is subject to
To impact or the interference of other factorses, the such as problem of fractional hardware compatibility, will make to carry out by software program merely
There is error in the process restarting test.
【Content of the invention】
In view of the above problems, the present invention provide a kind of power supply restart measurement jig, thus solve above-mentioned conventional power source open/
The test mode of shutdown, need to repeatedly press the key of restarting of electronic installation by manpower, laborious, time-consuming the asking of caused testing process
Topic, and the problems such as hardware cannot truly be assumed by software program restart the difficulty that condition faced with inconvenience and simultaneously simultaneous
Turn round and look at the advantage that automatic test is carried out by software program.
Disclosed herein power supply restart measurement jig it is adaptable to an electronic installation, this electronic installation is dynamic to produce one
Control signal.Disclosed herein power supply restart measurement jig and include a circuit board, one first restart circuit, one second restart
Circuit and a timing control unit.One signal reception end and one is electrically configured with circuit board and restarts control end, signal connects
Receiving end is electrically connected with electronic installation with restarting control end, and restarts control end and have a voltage levvl.First restarts electricity
Road is electrically configured on circuit board, and is electrically connected at signal reception end and restarts between control end, and first restarts circuit passes through
Signal reception end receives and controls signal, and according to control signal adjustment voltage levvl.Second restarts circuit is electrically configured at circuit
On plate, and it is electrically connected at signal reception end and first and restarts between circuit, second restarts circuit is received by signal reception end
Control signal, and according to control signal adjustment voltage levvl.Timing control unit is electrically arranged on circuit board, and is electrically connected with
Restart circuit and second in first and restart circuit, and timing control unit sequentially controls first to restart circuit to drag down voltage levvl
And control second to restart circuit with return voltage level.
Disclosed herein power supply restart measurement jig, wherein first restarts circuit further includes a first switch and one
Second switch, first switch is electrically connected with signal reception end, and second switch is electrically connected with first switch and restarts control end, sequential
Control unit is electrically connected with first switch and second switch, and first switch, according to controlling signal to end, makes second switch
Turn on according to the control of timing control unit.
Disclosed herein power supply restart measurement jig, wherein second restart circuit further includes one the 3rd switch and one
4th switch, the 3rd switch is electrically connected with signal reception end, and the 4th switch is electrically connected between second switch and electricity three switch, when
Sequence control unit is electrically connected with the 3rd switch and the 4th switch, and the 3rd switch, according to controlling signal to end, makes the 4th to open
Close the control according to timing control unit and turn on.
Disclosed herein power supply restart measurement jig, wherein first switch and the 3rd switch according to control signal and with
When cut-off, and timing control unit turn in order second switch and the 4th switch, wherein the 4th open when timing control unit turns on
Close, timing control unit ends second switch in the lump.
Disclosed herein power supply restart measurement jig, wherein first switch, second switch, the 3rd switch are opened with the 4th
Close as transistor.
Disclosed herein power supply restart measurement jig, wherein timing control unit further includes one first sequencing contro electricity
Lu Yuyi second sequential control circuit, the first sequential control circuit is electrically connected with first switch and second switch, the second sequential control
Circuit processed is electrically connected between the 3rd switch and the 4th switch, and a time constant of the second sequential control circuit is more than the
One time constant of one sequential control circuit.
Disclosed herein power supply restart measurement jig, the wherein first sequential control circuit and the second sequential control circuit
For resistor capacitor circuit.
Disclosed herein power supply restart measurement jig, further include a connector, be electrically arranged on circuit board, and
It is electrically connected with signal reception end, restart control end and electronic installation.
Effect of the present invention is, takes into account the facility of the automatic test of software program simultaneously and hardware restarts the essence of test
Really, the power supply of the therefore present invention restarts measurement jig by control news produced by electronics end execution one computer program
Number, triggering the present invention power supply restart measurement jig hardware circuit produce one emulation actual press to restart restart produced by key
Signal changes, and makes electronic installation execution restart function, the power supply of the present invention is restarted the first of measurement jig and restarted circuit meeting foundation
Control the change of signal, make the voltage levvl restarting in control end of circuit board drag down, simulation actual the pressing of user restarts key
When, the change of the voltage levvl on restarting control end.Then, by the control of sequential control circuit, second is made to restart circuit
Act on after some time, make the voltage levvl restarted in control end reply default value for initial state, emulate user
The behavior of key is restarted in release, to trigger hardware circuit by software signal, and truly completes a complete restarting process, that is,
Complete simulate that user is actual to press the action restarting key, therefore make the power supply of the present invention restart measurement jig taken into account soft
The convenience of part Automatic Program test and hardware restart the accuracy of test.
Feature for the present invention, implementation and effect, hereby coordinate schema to make most preferred embodiment detailed description as follows.
【Brief description】
Fig. 1 is that the power supply of first embodiment of the invention restarts the block schematic diagram of measurement jig.
Fig. 2 a to Fig. 2 c is that the power supply of second embodiment of the invention restarts the block schematic diagram of measurement jig.
Fig. 3 a to Fig. 3 c is that the power supply of third embodiment of the invention restarts the block schematic diagram of measurement jig.
Fig. 4 is that the power supply of fourth embodiment of the invention restarts the block schematic diagram of measurement jig.
Fig. 5 a is that the power supply of fifth embodiment of the invention restarts the schematic perspective view of measurement jig.
Fig. 5 b is that the power supply of fifth embodiment of the invention restarts the use state schematic diagram of measurement jig.
Fig. 5 c is that the power supply of fifth embodiment of the invention restarts the circuit diagram of measurement jig.
Main element symbol description：
10th, 20,30,40,50 power supplys restart measurement jig
11 electronic installation 100 circuit board
110 signal reception end 111 attachment means
120 restart control end 200 first restarts circuit
300 second restart circuit 210 first switch
220 second switch 310 the 3rd switchs
320 the 4th switch 400 timing control units
410 first sequential control circuit 420 second sequential control circuit
500 adapter pin1 the first foot positions
Pin2 crus secunda position C1, C2 electric capacity
R1, R2 resistance Vcc power supply
211st, 221,311,321 emitter stage
212nd, 222,312,322 base stage
213rd, 223,313,323 colelctor electrode
【Specific embodiment】
Disclosed herein power supply restart measurement jig and be applied on an electronic installation, in order to dynamic according to electronic installation
The control signal producing is repeated the electric power on/off machine test operation of a pre-determined number, this electronic installation to electronic installation
Can be but be not limited to be provided with central processing unit (central processing unit, CPU) and other zero group of electronics
One mainboard of part.
Refer to shown in Fig. 1, for disclosed herein first embodiment power supply restart measurement jig square illustrate
Figure.Power supply disclosed by first embodiment of the invention is restarted measurement jig 10 and is included a circuit board 100,1 first and restarts circuit
200th, one second restarts circuit 300 and a timing control unit 400, first restart circuit 200, second restart circuit 300 with
And timing control unit 400 is electrically configured on circuit board 100 respectively.
One signal reception end 110 and is electrically configured with circuit board 100 and restarts control end 120, first restarts circuit
200 are electrically connected at signal reception end 110 and restart between control end 120, and second restarts circuit 300 is electrically connected at signal and connects
Receiving end 110 and first is restarted between circuit 200, and timing control unit 400 is then electrically connected at first restarts circuit 200 and
Two restart circuit 300.
Electronic installation 11 electric power on/off machine restart in test, circuit board 100 can be but be not limited to pass through
A connector is electrically arranged on electronic installation 11, make circuit board 100 signal reception end 110 and restart control end 120 lead to
Cross adapter and be electrically connected at electronic installation 11, and make to restart control end 120 therefore there is a voltage levvl.First restarts electricity
Road 200 is the control signal receiving electronic installation 11 by the signal reception end 110 of circuit board 100, and controls news according to this
The voltage levvl of control end 120 is restarted in number adjustment, so that voltage levvl is pulled low.Second restarts circuit 300 again by circuit board
100 signal reception end 110 receives the control signal of electronic installation 11, and controls signal adjustment to restart control end according to this
120 voltage levvl, makes the voltage levvl after variation reply as default value.Timing control unit 400 then controls first to restart electricity
The order that circuit 300 adjusts voltage levvl is restarted on road 200 and second, makes the voltage levvl restarting control end 120 first be subject to first
Restart the adjustment of circuit 200 and drag down, to emulate the action restarting key that user presses electronic installation, be then subject to second again
Restart the adjustment of circuit 300 and reply as default value, to emulate the action restarting key that user discharges electronic installation.
Therefore, executed by electronic installation 11 end and produced by a computer program, control signal, the electricity of the triggering present invention
Source restart measurement jig 10 hardware circuit produce one emulation actual press restart restart produced by key signal change, make electronics
Device 11 executes the function that power supply is restarted, and restarts circuit 200 according to the change controlling signal by first, control is restarted in order simultaneously
End 120 on voltage levvl drag down, with simulate user actual press restart key when, the voltage water on restarting control end 120
Flat change, then passes through the control of sequential control circuit 400, makes second to restart circuit 300 and act on after a predetermined time, makes weight
The voltage levvl opening in control end 120 is replied, to simulate the action that key is restarted in user release.
Therefore, disclosed herein power supply restart measurement jig hardware circuit triggered by software signal, and more stick on
Nearly user actually accomplishes a complete power supply restarting process, allow disclosed herein power supply restart measurement jig except having
Software program is tested outside the convenience of electric power on/off machine automatically, still restarts test with carrying out power supply with physical switches
Accuracy.
Refer to Fig. 2 a to Fig. 2 c, for disclosed herein the power supply of second embodiment restart the square of measurement jig 20
Schematic diagram.It is close with the content of previous embodiment that power supply disclosed by second embodiment of the invention restarts measurement jig 20, and institute is not
Same person, is that the power supply of the present embodiment is restarted the first of measurement jig 20 and restarted circuit 200 and comprises a first switch 210 and
Second switch 220, first switch 210 and second switch 220 can be electrical switches, or an electronic building brick, for example brilliant
Body pipe, is not limited with person disclosed by embodiment.First switch 210 is electrically connected with signal reception end 110, second switch 220
It is electrically connected with first switch 210 and restarts control end 120, timing control unit 400 is electrically connected at first switch 210 and second
Between switch 220.
Refer to shown in Fig. 2 b, receive before the control signal of electronic installation 11 at signal reception end 110, first opens
Close 210 according to the state on signal reception end 110, e.g. one level high, be set at conduction mode, make second switch
220 are connected to earth terminal (or a low-voltage end) according to the conducting of first switches 210 so that second switch 220 is according to first
Switch 210 conducting state and be in cut-off (cut off) state, the voltage levvl therefore restarted in control end 120 does not have
Any change, and it is maintained at a default value.
Refer to shown in Fig. 2 c, after signal reception end 110 receives from the control signal of electronic installation 11, e.g.
One low voltage level, first switch 210, according to the state change on signal reception end 110, is switched to cut-off mode, and this is constantly
Sequence control circuit 400 controls second switch 220 to be switched to conducting state so that the voltage levvl of restarting in control end 120 is by the
Two switches 220 are connected to earth terminal (or a low-voltage end) and change, and imply that the ground connection level that an is pulled down to (or low-voltage
Level).
It should be noted that in the present invention, electronic installation control signal to disclosed herein power supply restart survey
Caused voltage levvl change on the signal reception end of examination tool, can be voltage levvl change from high to low, make first
Switch 210 is in the conduction state because of level high with second switch 220；Or the control signal of electronic installation is to this
It can also be from low to high that bright disclosed power supply restarts caused voltage levvl change on the signal reception end of measurement jig
Change in voltage, make first switch 210 in the conduction state because of low voltage level with second switch 220, not with embodiment party
Disclosed by formula, person is limited.
Therefore, first switch 210 with second switch 220 can be but be not limited to be connected to one because of conducting state and connect
Ground terminal (or a low-voltage end), or it is connected to a high voltage end because of conducting state.
Additionally, what deserves to be explained is, in the present invention, the change in voltage that triggering electronic installation is restarted, that is, restart control
Voltage levvl change on end 120 processed, can be a change in voltage from high to low, or, triggering electronic installation carries out weight
The change in voltage opening can also be a change in voltage from low to high, be not limited with person disclosed by embodiment.
Based on above-mentioned, the power supply of the second embodiment of the present invention is restarted the first of measurement jig and is restarted in circuit 200, more logical
Cross the specific design of first switch 210 and second switch 220, make the first switch can be according to the change controlling signal with second switch
To drag down the voltage levvl restarted in control end 120, thus simulating, user is actual to be pressed when restarting key, to restart control end
Voltage levvl change on 120.
Refer to shown in Fig. 3 a to Fig. 3 c, for disclosed herein the power supply of 3rd embodiment restart measurement jig 30
Block schematic diagram.Power supply disclosed by third embodiment of the invention restarts measurement jig 30, and its composition is close with previous embodiment,
Difference person, is that the power supply disclosed by the present embodiment is restarted the second of measurement jig 30 and restarted circuit 300 and comprise one the 3rd and opens
Close 310 and one the 4th switch 320, the 3rd switch 310 electric connection signal reception ends 110, the 4th switch 320 is electrically connected with the
Between two switches 220 and the 3rd switch 310, more precisely, one end of the 4th switch 320 is electrically connected at first switch 210
And second switch 220 between, the other end of the 4th switch 320 is then electrically connected at the 3rd switch 310, and timing control unit
400 are electrically connected between the 3rd switch 310 and the 4th switch 320.
Refer to shown in Fig. 3 b, after signal reception end 110 receives from the control signal of electronic installation 11, e.g.
One low voltage level, first switch 210 and the 3rd switch 310 change according to the voltage levvl on signal reception end 110 simultaneously, and
Being switched to cut-off mode, making sequential control circuit 400 control second switch 220 to be first switched to conducting state so that restarting control
Voltage levvl on end 120 processed is connected to earth terminal (or a low-voltage end) and is changed by second switch 220, thus being drawn
Low to ground connection level (or a low voltage level).
Refer to shown in Fig. 3 c, after sequential control circuit 400 turns on second switch 220, after an elapse of a predetermined time,
Sequential control circuit 400 turns on the 4th switch 320 again, makes second switch 220 be connected to and connect according to the conducting of the 4th switch 320
Ground terminal (or a low-voltage end), so that second switch 220 is in cut-off state according to the conducting of the 4th switch 320, therefore makes
Restart the voltage levvl in control end 120 to reply as original voltage levvl state.
It should be noted that among the present invention, electronic installation to disclosed herein power supply restart measurement jig and passed
The control signal sending, that is, the voltage levvl change on signal reception end 110, the triggering change in voltage restarted of electronic installation with
And restart voltage levvl change in control end 120, the type of first switch 210 and second switch 220, first switch 210 with
Second switch 220 voltage levvl in the conduction state and first switch 210 and second switch 220 are because of the connection of conducting state
State etc., all close with previous embodiment, here repeats no more.
What deserves to be explained is, among the present invention, the 3rd switch 310 and the 4th switch 320 can be because of a level high
And in the conduction state or in the conduction state because of a low voltage level, it is not limited with person disclosed by embodiment.
And, the 3rd switch 310 with the 4th switch 320 can be but be not limited to be connected to because of conducting state an earth terminal (or
One low-voltage end), or it is connected to a high voltage end because of conducting state.
Based on above-mentioned, disclosed herein the power supply of 3rd embodiment restart in measurement jig 30, first restarts electricity
Road 200 is by the specific design of first switch 210 and second switch 220 so as to weight can be dragged down according to the change controlling signal
Open the voltage levvl in control end 120, thus simulating, user is actual to be pressed when restarting key, the electricity on restarting control end 120
Voltage levels change.Then, restart in circuit 300 second, by the specific design of the 3rd switch 310 and the 4th switch 320, make
It can reply, according to the change controlling signal, the voltage levvl restarted in control end 120, thus simulating the actual release of user
Voltage levvl change after restarting key, on restarting control end 120.
It should be noted that in the present invention, the 3rd switch 310 and the 4th switch 320 can be electrical switches, or
It is that the 3rd switch 310 and the 4th switch 320 can also be electronic building bricks, and such as transistor, not with disclosed by embodiment
Person is limited.
Transistor is the core component of modern age electronic circuit, and can be used as the switch of electric current, and transistor has the foot at three ends
Position, is divided into base stage (base), emitter stage (emitter) and colelctor electrode (collector), user can on transistor each electricity
Whether the suitable bias of interpolar, the particularly bias in base stage, be that convergence short circuit is connected to determine between emitter stage and colelctor electrode
And turn on, or be off and disconnect, thus there is the function of electrical switch control, therefore transistor is applied to the present invention's
Control and operation that first switch 210, second switch the 220, the 3rd switch 310 and the 4th switch 320 are carried out.
Refer to shown in Fig. 4, for disclosed herein the power supply of fourth embodiment restart the system side of measurement jig 40
Block schematic diagram.Power supply disclosed by fourth embodiment of the invention restart measurement jig 40 assembly composition on previous embodiment
Content is close, difference person, be the timing control unit 400 of the present embodiment further include one first sequential control circuit 410 with
One second sequential control circuit 420, the first sequential control circuit 410 is electrically connected at first switch 210 and second switch 220,
Second sequential control circuit 420 is electrically connected at the 3rd switch 310 and the 4th switch 320, and the second sequential control circuit 420
A time constant be more than the first sequential control circuit 410 a time constant, make the second sequential control circuit 420 when first
It is necessary to after a scheduled time, the 4th switch 320 can be turned on, to cut after sequence control circuit 410 conducting second switch 220
Only second switch 220, thus after reaching and first dragging down voltage levvl, then effect of return voltage level.
Refer to shown in Fig. 5 a, for disclosed herein the power supply of the 5th embodiment restart the solid of measurement jig 50 and show
It is intended to.Power supply disclosed by fifth embodiment of the invention restarts the composition assembly of measurement jig 50 and the content phase of previous embodiment
Closely, difference person, is that the power supply disclosed by the present embodiment moves and puts measurement jig 50 and further include a connector 500, it can be
But it is not limited to socket, plug or golden finger etc..This adapter 500 is electrically configured on circuit board 100, and electrically
It is connected to signal reception end 110 and restart control end 120.Adapter 500 be electrically be arranged on electronic installation 11 with its
The connecting interface 111 matching, for example, socket (socket) (as shown in Figure 5 b), make circuit board 100 be electrically connected at electronics
Device 11 so that first restart circuit and second restart circuit can by signal reception end 110 receive electronic installation 11 control
Signal processed.
Refer to shown in Fig. 5 c, for disclosed herein the power supply of the 5th embodiment restart the circuit of measurement jig 50 and show
It is intended to.In the present embodiment, the first sequential control circuit 410 and the second sequential control circuit 420 are respectively resistor capacitor circuit.
First sequential control circuit 410 is connected a power Vcc by a resistance R1 with an electric capacity C1 and is formed, the second sequential control circuit
420 are connected another power Vcc by another resistance R2 with another electric capacity C2 and are formed.And, first switch 210, second open
Closing the 220, the 3rd switch 310 and switching 320 with the 4th to be but is not limited to transistor.
Additionally, the signal reception end 110 of circuit board 100 receives before the control signal of electronic installation 11, first opens
Close 210 according to the state on signal reception end 110, e.g. one level high pressure reduction, i.e. first foot at signal reception end 110
Position pin1 is a high-pressure horizontal, and the crus secunda position pin2 at signal reception end 110 is a low pressure level or ground connection level, due to the
The base stage 212 of one switch 210 is biased in a forward bias voltage drop (forward-bias) shape with emitter stage 211 by this high-pressure horizontal pressure reduction
State, makes first switch 210 be set at conduction mode, leads between the colelctor electrode 213 of first switch 210 and emitter stage 211
Pressure reduction very little and convergence is short-circuit so that the base stage 222 of second switch 220 according to first switch 210 conducting connect and connect
To earth terminal or a low-voltage end of the crus secunda position pin2 at signal reception end 110, cause the base stage 222 of second switch 220 with
Emitter stage 221 biases deficiency and is in cut-off state, and makes to cut between the colelctor electrode 223 of second switch 220 and emitter stage 221
Only convergence open circuit, therefore restarting the voltage levvl in control end 120 does not have any change.
In the same manner, now the base stage 312 of the 3rd switch 310 is biased in one forward with emitter stage 311 by this high-pressure horizontal pressure reduction
Bias (forward-bias) state, the 3rd switch 310 is set at conduction mode so that the 3rd switchs 310 colelctor electrode 313
Pressure reduction very little and emitter stage 311 between and convergence is short-circuit, make base stage 322 the leading according to the 3rd switch 310 of the 4th switch 320
Lead to the earth terminal of crus secunda position pin2 or the low-voltage end connecing and being connected to signal reception end 110, cause the 4th switch 320
Base stage 322 bias deficiency and be in cut-off state with emitter stage 321, and make colelctor electrode 323 and the transmitting of the 4th switch 320
End and convergence open circuit between pole 321.
When electronic installation dynamically produces control signal, signal reception end 110 receives the control from electronic installation 11
Signal and after producing the change of voltage levvl, e.g. drag down into a low voltage level pressure reduction, i.e. the first of signal reception end 110
Foot position pin1 is all a low pressure level or ground connection level with the crus secunda position pin2 at signal reception end 110, due to first switch 210
Base stage 212 and emitter stage 211 and the 3rd switch 310 base stage 312 inverse one by this low pressure horzontal deflecting voltage with emitter stage 311
To bias (reversed-bias) state, first switch 210 and the 3rd switch 310 is therefore made to be set at cut-off mode, thus
Make between the colelctor electrode 213 of first switch 210 and the colelctor electrode 313 of emitter stage 211 and the 3rd switch 310 and emitter stage 311
End and convergence open circuit, now the power Vcc of the first sequential control circuit 410 just starts via resistance R1, electric capacity C1 to be charged,
The power Vcc of the second sequential control circuit 420 just starts via resistance R2, electric capacity C2 to be started to charge up.
Because resistor capacitor circuit is made up of with an electric capacity an electricity group, its time constant (timeconstant) is even more electricity
Capacitance is long-pending with resistance value, and different time constants can determine the different response time.Therefore, by different resistance values
With the design combining of capacitance, the control mechanism of differential responses time can be produced, its principle is by a power supply warp
By a resistance, one electric capacity is charged, therefore, if resistance value is larger, charging current can be made to reduce, or electric capacity is larger, all can
Elongate the time of charging complete, so that time constant increases.
Time constant due to the first sequential control circuit 410 is less than the time constant of the second sequential control circuit 420, because
This present embodiment, when electric capacity C1 is identical with the capacitance of electric capacity C2, can be that the resistance R1 of the first sequential control circuit 410 is less than
The resistance R2 of the second sequential control circuit 420, or, when resistance R1 is identical with resistance R2, the first sequential control circuit 410
Electric capacity C1 capacitance be less than the second sequential control circuit 420 electric capacity C2 capacitance, can be more, the first sequential control circuit
410 capacitance of electric capacity C1 and the resistance value of resistance R1 are respectively less than the capacitance of electric capacity C2 and the electricity of the second sequential control circuit 420
The resistance value of resistance R2, is not limited with person disclosed by embodiment.
Therefore, in the present embodiment, the second sequencing contro electricity is less than by the time constant of the first sequential control circuit 410
The configuration mode of the time constant on road 420, makes the charging that the first sequential control circuit 410 can first complete to electric capacity C1, and now
The power Vcc of one sequential control circuit 410 is just biased into the base stage 222 of second switch 220 so as to get the base of second switch 220
Pole 222 and emitter stage 221 are biased in a forward bias voltage drop (forward-bias) state by this power Vcc, lead to second switch 220
It is set at conduction mode, and make the pressure reduction very little between the colelctor electrode 223 of second switch 220 and emitter stage 221 and convergence
Short circuit, thus allow the voltage levvl restarting in control end 120 to pass through between colelctor electrode 223 and the emitter stage 221 of second switch 220
Conducting link and be pulled down to the voltage levvl of ground connection.
Therefore, a control signal produced by a computer program is executed by electronics end, to trigger the present invention's
Power supply restarts the hardware circuit of measurement jig 50, with produce an emulation actual press restart restart produced by key signal change,
Electronic installation execution is made to restart function.Meanwhile, the first of the present invention restarts circuit 200 meeting according to the change controlling signal, order weight
The voltage levvl opening in control end 120 drags down, with simulate user actual press restart key when, on restarting control end 120
Voltage levvl changes.
Simultaneously as the time that the time constant of the first sequential control circuit 410 is less than the second sequential control circuit 420 is normal
Number, therefore, after the first sequential control circuit 410 completes the charging to electric capacity C1, the second sequential control circuit 420 has to pass through
A period of time just can complete the charging to electric capacity C2.Now, the power Vcc of the second sequential control circuit 420 is just biased into the 4th
The base stage 322 of switch 320 so that the base stage 322 of the 4th switch 320 and emitter stage 321 to be biased in one by this power Vcc forward inclined
Pressure (forward-bias) state, and lead to the 4th switch 320 to be set at conduction mode, so that the collection of the 4th switch 320
Pressure reduction very little between electrode 323 and emitter stage 321 and convergence is short-circuit, and make the base stage 222 of second switch 220 according to the 4th
The colelctor electrode 323 that the conducting of switch 320 connects and passes through the 4th switch 320 is connected to the connecing of emitter stage 321 of the 4th switch 320
Ground terminal or a low-voltage end so that the base stage 222 of second switch 220 biases deficiency and is in cut-off state with emitter stage 221, from
And make to end between the colelctor electrode 223 of second switch 220 and emitter stage 221 and convergence is opened a way so that restarting in control end 120
Voltage levvl is replied as initial voltage levvl.
Therefore, the present embodiment passes through the first sequential control circuit 410 and the second sequencing contro electricity of sequential control circuit 400
The control of the different time constant on road 420, makes second to restart circuit 300 and acts on after some time, make to restart control end 120
On voltage levvl be first pulled low after reply again, therefore specifically simulate user and first press, discharge the behavior restarting key again,
And than intending, user is actual to press the complete power supply restarting process that physical button is completed.
Based on above-mentioned, disclosed herein power supply restart measurement jig, be to be object for general electronic installation, when making
User has the demand of software automatic test, to lift testing efficiency, requires to carry out by the running of hardware unit simultaneously again
During the test restarted, disclosed herein power supply restart measurement jig can by electronics end execute a computer program
Produced one control signal, triggering the present invention power supply restart measurement jig hardware circuit produce one emulation actual press weight
Restart signal change produced by Qi Jian, make electronic installation execution power supply reset routine.
Additionally, the first of the present invention restarts the voltage levvl that circuit can be restarted in control end according to the change order of control signal
Drag down, with simulate user actual press restart key when, the change of the voltage levvl on restarting control end.Then, by when
The control of sequence control circuit, makes second to restart circuit and acts on after some time, so that the voltage levvl restarted in control end is returned
Multiple, to simulate the behavior that key is restarted in user release.Therefore, to complete one complete certain to trigger hardware circuit by electrical signals
Whole power supply restarting process, make the power supply of the present invention restart measurement jig with software program automatically the convenience of test and
Hardware restarts the accuracy of test.In addition, the present invention more discloses the switch of different aspects and the design of sequential control circuit, enter one
The application of the convenient user of step, more the power supply of the present invention can be allowed to restart measurement jig by various design can be widely applied
In all types of electronic installations.
Although embodiments of the invention are disclosed above described, so it is not limited to the present invention, any be familiar with related art techniques
Person, without departing from the spirit and scope of the present invention, such as according to the shape described in the present patent application scope, construction, feature and number
, when doing a little change, the therefore scope of patent protection of the present invention must be regarding claim institute circle appended by this specification for amount
The person of determining is defined.
Claims (7)
1. a kind of power supply restarts measurement jig it is adaptable to an electronic installation produces one it is characterised in that described electronic installation is dynamic
Control signal, described power supply is restarted measurement jig and included:
One circuit board, is electrically configured with a signal reception end and and restarts control end, described signal reception end is restarted with described
Control end is electrically connected with described electronic installation, and described restart control end and have a voltage levvl；
One first restarts circuit, is electrically configured on described circuit board, and it is heavy with described to be electrically connected at described signal reception end
Open between control end, described first restarts circuit receives described control signal by described signal reception end, and according to described control
Signal processed adjusts described voltage levvl；Wherein said first restarts circuit comprises a first switch and a second switch, described
First switch is electrically connected with described signal reception end, and described second switch is electrically connected with described first switch and restarts control with described
End；
One second restarts circuit, is electrically configured on described circuit board, and is electrically connected at described signal reception end and described the
One restarts between circuit, and described second restarts circuit receives described control signal by described signal reception end, and according to described
Signal is controlled to adjust described voltage levvl；And
One timing control unit, is electrically arranged on described circuit board, and be electrically connected at described first restart circuit with described
Second restarts circuit, and described timing control unit sequentially controls described first to restart circuit to drag down described voltage levvl and control
Make described second and restart circuit to reply described voltage levvl；Described timing control unit is electrically connected with described first switch and institute
State second switch, and described first switch is ended according to described control signal, makes described second switch according to described sequential
Control unit and turn on.
2. power supply as claimed in claim 1 restarts measurement jig it is characterised in that wherein said second restarts circuit and comprise one
3rd switch and one the 4th switch, described 3rd switch is electrically connected with described signal reception end, and described 4th switch electrically connects
Connect between described second switch and described 3rd switch, described timing control unit is electrically connected with described 3rd switch and described the
Four switches, and described 3rd switch controls signal to end according to described, makes described 4th switch according to described sequencing contro
Unit and turn on.
3. power supply as claimed in claim 2 restarts measurement jig it is characterised in that wherein said first switch and the described 3rd
Switch ends according to described control signal simultaneously, and second switch and the described 4th described in described timing control unit turn in order
Switch, wherein when described 4th switch of described timing control unit conducting, is to end described second switch in the lump.
4. power supply as claimed in claim 2 restart measurement jig it is characterised in that wherein said first switch, described second
Switch, described 3rd switch switch as transistor with the described 4th.
5. power supply as claimed in claim 2 restarts measurement jig it is characterised in that wherein said timing control unit further includes
One first sequential control circuit and one second sequential control circuit, described first sequential control circuit is electrically connected with described first and opens
Close and described second switch, described second sequential control circuit is electrically connected at described 3rd switch and described 4th switch
Between, and a time constant of described second sequential control circuit is more than a time constant of described first sequential control circuit.
6. power supply as claimed in claim 5 restart measurement jig it is characterised in that wherein said first sequential control circuit with
Described second sequential control circuit is resistor capacitor circuit.
7. power supply as claimed in claim 1 restarts measurement jig it is characterised in that further including a connector, is electrically arranged at
On described circuit board, and it is electrically connected with described signal reception end, described restarts control end and described electronic installation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396028.8A CN103135051B (en) | 2011-12-02 | 2011-12-02 | Test fixture for power source restarting |
| TW101121615A TWI439715B (en) | 2011-12-02 | 2012-06-15 | Power-reset test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396028.8A CN103135051B (en) | 2011-12-02 | 2011-12-02 | Test fixture for power source restarting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103135051A CN103135051A (en) | 2013-06-05 |
| CN103135051B true CN103135051B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110396028.8A Active CN103135051B (en) | 2011-12-02 | 2011-12-02 | Test fixture for power source restarting |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103135051B (en) |
| TW (1) | TWI439715B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039012B (en) * | 2017-05-23 | 2019-08-16 | 昆山龙腾光电有限公司 | A kind of sequence controller and liquid crystal display device |
| CN108012277A (en) * | 2017-09-12 | 2018-05-08 | 上海斐讯数据通信技术有限公司 | A kind of detection device of MIFI systems, system and method |
| CN112379255A (en) * | 2020-11-12 | 2021-02-19 | 浪潮商用机器有限公司 | Alternating current power supply switch test method, device and equipment and alternating current power supply switch |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201323906A (en) | 2013-06-16 |
| CN103135051A (en) | 2013-06-05 |
| TWI439715B (en) | 2014-06-01 |
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