CN208721757U - A kind of power panel test circuit - Google Patents
A kind of power panel test circuit Download PDFInfo
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- CN208721757U CN208721757U CN201821347516.3U CN201821347516U CN208721757U CN 208721757 U CN208721757 U CN 208721757U CN 201821347516 U CN201821347516 U CN 201821347516U CN 208721757 U CN208721757 U CN 208721757U
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Abstract
The utility model discloses a kind of power panels to test circuit, comprising: power module, short-circuit indicating module, load blocks and parameters measurement module；The first end of the power module is electrically connected with the first end of short-circuit indicating module, the second end of the short circuit indicating module is electrically connected with the first incoming end of the power panel to be measured, the second end of the power module is electrically connected with the second incoming end of power panel to be measured, the first end of the load blocks picks out end with the first of the power panel to be measured and is electrically connected, and the second end of the load blocks picks out end with the second of the power panel to be measured and is electrically connected；The parameters measurement module, for measuring the electrical parameter of the load blocks, the electrical parameter includes electric current and/or voltage；The short circuit indicating module, for determining whether the power panel to be measured is short-circuit.Power panel provided by the utility model tests circuit, the failure for quickly testing power panel may be implemented, while fully ensuring that the safety of test process.
Description
Technical field
The utility model embodiment is related to electric test field more particularly to a kind of power panel test circuit.
Background technique
Power panel is the necessary parts being present in various electric appliances, and it is to adapt to respectively that effect, which is by external power conversion,
The working power of kind electric appliance, so that electric appliance works normally.For the quality for guaranteeing power panel, need to test with true power panel
Whether the input and output for determining power panel are normal, to avoid influencing the use of electric appliance due to there are the failures such as short circuit, open circuit.Usually
Power panel is tested using power supply board test fixture.
Existing test fixture circuit is complicated, is unfavorable for test man's rapidly removing faults, and lack safeguard measure, into
When row test, due to phenomena such as high-pressure section electrolytic capacitor of power panel is reversely connected, electric leakage, the reversal of diode, member may be burnt out
Part, or even there is a phenomenon where frying plate, threaten the inherently safe of test man.
Utility model content
The utility model provides a kind of power panel test circuit, to realize the failure of quickly test power panel, while sufficiently
Guarantee the safety of test process.
The utility model provides a kind of power panel test circuit, comprising: power module, short-circuit indicating module, load blocks
And parameters measurement module；
The first end of the power module be electrically connected with the first end of short-circuit indicating module, and the of the short-circuit indicating module
Two ends are electrically connected with the first incoming end of the power panel to be measured, and the second of the second end of the power module and power panel to be measured
Incoming end electrical connection, the first end of the load blocks pick out end with the first of the power panel to be measured and are electrically connected, the load
The second end of module picks out end with the second of the power panel to be measured and is electrically connected；
The parameters measurement module, for measuring the electrical parameter of the load blocks, the electrical parameter include electric current and/or
Voltage；
The short circuit indicating module, for determining whether the power panel to be measured is short-circuit.
Further, the power panel tests circuit further include: power detection module；
The first end of the power detection module is electrically connected with the first end of the power module, the power sense circuit
Second end be electrically connected with the second end of the power module；
The power detection module, for detecting whether the power module works normally.
Further, the power detection module includes first resistor and power supply indicator, the first resistor and described
Power supply indicator series connection；
The power supply indicator is lighted in turn-on current.
Further, the power panel tests circuit further include: Double-hole socket；
The second end of the short circuit indicating module and the first incoming end of the circuit board under test pass through the Double-hole socket
The first hole electrical connection；
Second incoming end of the second end of the power module and the power panel to be measured pass through the Double-hole socket the
The electrical connection of two holes.
Further, the power module includes isolating transformer, protective tube and alternating current；
The first end of the protective tube is electrically connected with the zero line of alternating current, the second end and isolating transformer of the protective tube
The first end electrical connection of winding is inputted, the second end of the isolating transformer input winding and the zero line side of the alternating current are electrically connected
It connects；
The first end of isolating transformer output winding is electrically connected with the first end of the short-circuit indicating module, and the isolation becomes
The second end of depressor output winding is electrically connected with the second input terminal of the power panel to be measured；
The isolating transformer, for reducing the voltage of the alternating current.
Further, the power panel tests circuit further include: switch；
The first end of the power module is electrically connected with the first end of the switch, the second end of the switch respectively with institute
State the first end electrical connection of the first end and the power detection module of short-circuit indicating module.
Further, the short-circuit indicating module is short-circuit indicator light.
Further, the power bracket of the short-circuit indicating module are as follows: 100W-300W.
Further, the parameters measurement module includes voltmeter and/or ammeter；
The voltmeter, for measuring the electricity between the first end of the load blocks and the second end of the load blocks
Pressure；
The ammeter inputs the electric current of the load blocks for measuring the power panel to be measured.
Further, the load blocks are second resistance.
The utility model provides a kind of power panel test circuit, passes through setting power module, short-circuit indicating module, load mould
Block and parameters measurement module determine whether power panel is short-circuit using short-circuit indicating module, measure institute using parameters measurement module
The electrical parameter for stating load blocks solves the problems, such as that existing power supply board test fixture circuit is complicated, there are security risks, realizes fast
Speed test power panel failure, while guaranteeing the effect of the safety of test process.
Detailed description of the invention
Fig. 1 is the circuit structure diagram of the power panel test circuit in the utility model embodiment；
Fig. 2 is another circuit structure diagram of the power panel test circuit in the utility model embodiment；
Fig. 3 is another circuit structure diagram of the power panel test circuit in the utility model embodiment.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is the circuit structure diagram of the power panel test circuit in the utility model embodiment.As shown in Figure 1, the power supply
Plate test circuit includes power module 110, short-circuit indicating module 120, load blocks 130 and parameters measurement module 140；
The first end (not shown) of power module 110 is electrically connected with the first end (not shown) of short-circuit indicating module 120, short
The second end (not shown) of road indicating module 120 is electrically connected with the first incoming end (not shown) of power panel 150 to be measured, power supply mould
The second end (not shown) of block 110 is electrically connected with the second incoming end (not shown) of power panel 150 to be measured, load blocks 130
First end (not shown) picks out end (not shown) with the first of power panel 150 to be measured and is electrically connected, the second end of load blocks 130
(not shown) picks out end (not shown) with the second of power panel 150 to be measured and is electrically connected；
Parameters measurement module 140, for measuring the electrical parameter of load blocks 130, electrical parameter includes electric current and/or voltage；
Short-circuit indicating module 120, for determining whether power panel 150 to be measured is short-circuit.
Specifically, power module 110 includes the power supply that can arbitrarily power, as shown in Figure 1, the first end of power module 110
It is electrically connected with the first end of short-circuit indicating module 120, the first of the second end of short-circuit indicating module 120 and power panel 150 to be measured
Incoming end electrical connection, the second end of power module 110 is electrically connected with the second incoming end of power panel 150 to be measured, to make power supply
Module 110 can power for short-circuit indicating module 120 and power panel to be measured 150.Power panel 150 to be measured can be common adaptation
Exchange input is either arbitrarily converted to the circuit board of direct current output by device, Switching Power Supply, and specific structure the present embodiment is not
It limits.Short-circuit indicating module 120 is for determining whether power panel 150 to be measured is short-circuit, when power panel 150 to be measured has short circuit event
When barrier, for example, the incoming end electrolytic capacitor reversal connection of power panel to be measured 150, patch rectifier diode anti-phenomena such as pasting cause it is short-circuit therefore
Barrier, short-circuit indicating module 120 can produce corresponding instruction at this time, to remind test man that there is currently short troubles, convenient for test
Member rapidly stops the power supply of power module 110 in time, power panel 150 to be measured is further detected and repair, to avoid burning out
Element in power panel 150 to be measured and the safety that ensure that test man.Wherein, short-circuit indicating module 120 can be short circuit and refer to
Show lamp, short-circuit buzzer etc..Specifically, power bracket can be set for short-circuit indicating module 120, when true in the power bracket
While recognizing power panel to be measured short 150 tunnel, short-circuit indicating module 120 is responded, to prevent short-circuit indicating module 120 being powered
The case where Shi Zidong instruction causes erroneous judgement.
Further, the first end of load blocks 130 picks out end with the first of power panel 150 to be measured and is electrically connected, and loads mould
The second end of block 130 picks out end with the second of power panel 150 to be measured and is electrically connected, and load blocks 130 are connect in power panel 150 to be measured
Pick out end, using using power panel 150 to be measured direct current output be load blocks 130 power, make load blocks 130 work.Its
In, the physical circuit of load blocks 130 may be set according to actual conditions, such as a resistance, two series resistances.Load mould
It can be dismountable be electrically connected between block 130 and power panel 150 to be measured.Load blocks are measured using parameters measurement module 140
130 electrical parameter, to test the end that picks out of power panel 150 to be measured, wherein electrical parameter includes electric current and/or voltage,
The electrical parameter that test man can measure according to parameters measurement module 140 intuitively judges whether load blocks 130 work normally, in turn
Judge whether the output of power panel 150 to be measured is normal, whether there is open circuit fault etc..When the electrical parameter of load blocks 130 exceeds
When normal range (NR), test man should stop the power supply of power module 110, further detect and repair power panel 150 to be measured.
Illustratively, when testing power panel 150 to be measured, if short-circuit indicating module 120 generates corresponding finger
Show, then illustrates that there are short troubles for power panel 150 to be measured；If short-circuit indicating module 120 does not indicate, can be further according to ginseng
The electrical parameter that number measurement module 140 measures judges the failure of power panel 150 to be measured.For example, when power panel 150 to be measured works normally
Output should be 5V/2A, and the voltage and current that parameters measurement module 140 measures is respectively 6V, 2.5A, is higher than power panel to be measured
Output when 150 normal work illustrates that exchange is inputted the part failure for being converted to direct current output by power panel 150 to be measured,
It may be that phenomena such as transformer in power panel 150 to be measured breaks down, subelement is short-circuit in power panel to be measured 150 causes electricity
The value of parameter is higher；If the voltage and current numerical value that parameters measurement module 140 measures all is 0, illustrate power panel 150 to be measured
In there are open circuit faults.
The power panel of the present embodiment tests circuit, passes through setting power module, short-circuit indicating module, load blocks and ginseng
Number measurement module, determines whether power panel is short-circuit using short-circuit indicating module, measures the load mould using parameters measurement module
The electrical parameter of block can solve existing power supply board test fixture circuit complexity, there are problems that security risk, realizes and quickly survey
Power panel failure is tried, while guaranteeing the safety of test process.
On the basis of the above embodiments, the power panel tests circuit further include: power detection module 160, the electricity
The first end (not shown) of source detection module 160 is electrically connected with the first end of the power module 110, the power detection module
160 second end (not shown) is electrically connected with the second end of the power module 110；
The power detection module 160, for detecting whether the power module 110 works normally.
Specifically, Fig. 2 is the circuit structure diagram of another power panel test circuit in the present embodiment.With reference to Fig. 2, power supply inspection
The first end for surveying module 160 is electrically connected with the first end of power module 110, the second end and power module of power sense circuit
Power sense circuit, is connected to the both ends of power module 110, to utilize power detection module by 110 second end electrical connection
Whether 160 detection power modules 110 work normally.Illustratively, when testing power panel 150 to be measured, can first lead to
It crosses power detection module 160 and detects whether power module 110 works normally, if power module 110 works normally, illustrate power supply
Module 110 can be short-circuit indicating module 120 and 150 normal power supply of power panel to be measured, thus guarantee that test process is normally carried out,
, whereas if power module 110 can not work normally, then needs first to overhaul or replace power module 110, make power module 110
Can normal power supply, while can also to avoid the supply voltage as power module 110 it is unstable caused by security risk.Its
In, the particular circuit configurations of power detection module 160 can according to the actual situation, in general, setting power detection module 160 is at least
Including indicating device, such as power supply indicator, buzzer, to confirm the detection knot of power detection module 160 by indicating device
Fruit.
Further, power detection module 160 includes first resistor 161 and power supply indicator 162, the first resistor
161 and the power supply indicator 162 connect；The power supply indicator 162 is lighted in turn-on current.
It includes first resistor 161 and power supply indicator 162 that power detection module 160 is set in embodiment.Specifically, with reference to
Fig. 2 connects power supply indicator 162 and first resistor 161, then connects first resistor 161 and the first end of power module 110
It connects, power supply indicator 162 is connect with the second end of power module 110, can be to first resistor 161 when power module 110 works
Electric current is exported with power supply indicator 162, at this point, power supply indicator 162 is connected and lighted, and then realizes and intuitively confirms power supply mould
Block 110 works normally.If power module 110 can not work normally, it can not be flowed in first resistor 161 and power supply indicator 162
Through electric current, at this point, power supply indicator 162 is non-lit up, and then intuitively confirm that power module 110 does not work normally.At this point, surveying
Examination person can be confirmed whether to replace power supply according to the testing result of power detection module 160.
Further, the power panel tests circuit further include: Double-hole socket 170；
The second end of short-circuit indicating module 120 and the first incoming end of circuit board under test pass through the first of Double-hole socket 170
Hole electrical connection；
Second incoming end of the second end of power module 110 and power panel 150 to be measured passes through the second hole of Double-hole socket 170
Electrical connection.
Specifically, with reference to Fig. 2, the second end of short-circuit indicating module 120 and the first incoming end of circuit board under test pass through double
First hole of spring hole scoket 170 is electrically connected, and the second incoming end of the second end of power module 110 and power panel 150 to be measured passes through double
Second hole of spring hole scoket 170 is electrically connected, and Double-hole socket is arranged by testing between circuit and power panel to be measured 150 in power panel,
Circuit connection is tested with power panel convenient for circuit board under test 150 or is separated, and ensure that the reusability of power panel test circuit.Example
Property, whether when testing, can detect power module 110 first with power detection module 160 works normally, then root
Decide whether to access power panel 150 to be measured according to testing result.If can determine power module by power detection module 160
110 is normal, then power panel 150 to be measured is tested circuit connection by Double-hole socket 170 and power panel, meanwhile, by load blocks
130 connect with power panel 150 to be measured, can exclude the failure of power module 110, be conducive to test man to power panel 150 to be measured into
Row test.
The power panel of the present embodiment tests circuit, passes through setting power module, short-circuit indicating module, load blocks and ginseng
Number measurement module, determines whether power panel is short-circuit using short-circuit indicating module, measures the load mould using parameters measurement module
The safety quickly tested power panel failure, guarantee test process may be implemented in the electrical parameter of block；And it is examined by setting power supply
Module and Double-hole socket are surveyed, can be worked normally ensuring power module and accesses power panel to be measured again after output stabilization, just
Smoothly power panel to be measured is tested in test man, and further ensures that the safety of test process.
On the basis of the above embodiments, Fig. 3 is the circuit structure diagram of another power panel test circuit in the present embodiment.
Wherein, power detection module 160 includes that first resistor R1 and power supply indicator D7, the present embodiment illustratively use light-emitting diodes
Pipe is as power supply indicator D7, and the parameter that first resistor R1 is arranged is 180R/2W.It should be noted that power supply instruction in Fig. 3
The series system of lamp D7 and first resistor R1 are only a kind of optional way, can also be by power supply indicator D7 and the in practical application
One resistance R1 transposition.
With reference to Fig. 3, the power module 110 includes: isolating transformer T1, protective tube F1 and alternating current；
The first end (not shown) of the protective tube F1 is electrically connected with the zero line L of alternating current, and the second of the protective tube F1
The first end (not shown) of end (not shown) and isolating transformer T1 input winding is electrically connected, the isolating transformer T1 input around
The second end (not shown) of group is electrically connected with the zero line side N of the alternating current；
The first end (not shown) of isolating transformer T1 output winding and the first end of the short-circuit indicating module 120 are electrically connected
It connects, the second end (not shown) of the isolating transformer T1 output winding and the second input terminal of the power panel E1 to be measured are electrically connected
It connects；
The isolating transformer T1, for reducing the voltage of the alternating current.
Wherein, short-circuit indicating module 120 can be short-circuit indicator light L1, and with reference to Fig. 3, power module 110 includes that isolation becomes
Depressor T1, protective tube F1 and alternating current.The input winding of isolating transformer T1 is connect with the firewire L of alternating current, zero curve N respectively, every
Output winding from transformer T1 is connect with the second input terminal of the first end of short-circuit indicator light L1 and power panel E1 to be measured, thus
The voltage of alternating current is reduced, is that short circuit indicator light L1 and power panel E1 to be measured powers.By isolating transformer T1, city can be reduced
Electricity voltage, make voltage in the acceptable safe range of human body, guarantee test process in safety, while also function to every
Effect from filtering.Also, protective tube F1, the present embodiment example are provided between the zero line L and isolating transformer T1 of alternating current
Property be arranged protective tube F1 parameter be 5A/250V, when in circuit electric current it is excessive, more than 5A when, protective tube F1 fuse, avoid circuit
Middle element is burned, and guarantees the safety of test process.
Further, the power panel tests circuit further include: switch P1；
The first end of the power module 110 is electrically connected with the first end of switch P1, the second end of switch P1 respectively with institute
State the first end electrical connection of the first end and the power detection module 160 of short-circuit indicating module 120.
As shown in figure 3, the first end of the output winding of isolating transformer T1 is electrically connected with switch P1, the second end of switch P1
It is electrically connected with the first end of the first end of short-circuit indicator light L1 and first resistor R1.When being tested, switch P1 is connected, if
Alternating current and isolating transformer T1 are worked normally, then power supply indicator D7 is lighted, and then power panel E1 to be measured can be passed through diplopore
Socket CON1 is accessed in circuit, if power panel E1 to be measured, there are short trouble, short circuit indicator light L1 is lighted to remind test
Personnel.When any link breaks down or detects arbitrary portion non-normal working in test process, switch can be first disconnected
P1, then targetedly detected and repaired.
Further, short-circuit indicating module 120 is short-circuit indicator light L1.
Illustratively, can determine whether power panel E1 to be measured is short-circuit by short-circuit indicator light L1.When power panel to be measured
When E1 short circuit, short-circuit indicator light L1, power module 110 and the resistance value very little in circuit, electric current where power panel E1 to be measured are very big, short
Road indicator light L1 is lighted to indicate that there is currently short troubles；When power panel E1 to be measured is without short circuit, short-circuit indicator light L1, electricity
Source module 110 and the place power panel E1 to be measured loop current very little, short-circuit indicator light L1 are in OFF state, it is possible thereby to intuitive fast
Determine whether power panel E1 to be measured is short-circuit fastly.
Further, the power bracket of short-circuit indicating module 120 are as follows: 100W-300W.
The power bracket of short-circuit indicator light L1 is illustratively set in the present embodiment as 100W-300W.When testing,
Make short-circuit indicator light L1 power be greater than power panel E1 to be measured power, with this come guarantee short-circuit indicator light L1 only in power supply to be measured
Plate E1 short circuit Shi Caihui is lighted, and electric current very little when the normal work of power panel to be measured 1, short-circuit indicator light L1 do not work.Practical application
In, the design parameter of power supply and power panel E1 to be measured that the power of short-circuit indicator light L1 can be provided according to power module 110 is set
It is fixed.
Further, parameters measurement module 140 includes voltmeter V1 and/or ammeter A1, and voltmeter V1 is for measuring institute
State the voltage between the first end of load blocks 130 and the second end of the load blocks 130；
Ammeter A1 is for measuring the electric current that the power panel to be measured 150 inputs the load blocks 130.
Specifically, setup parameter measurement module 140 includes voltmeter V1 and ammeter A1 in embodiment.Meanwhile setting is negative
Carrying module 130 includes second resistance R2.As shown in figure 3, load blocks 130 can be second resistance R2, at this point, in second resistance
The both ends shunt voltage Table V 1 of R2, to measure the voltage at the both ends second resistance R2 by setting voltmeter V1, meanwhile, by second
Resistance R2 and ammeter A1 connect, to measure power panel E1 input second resistance R2's to be measured by setting ammeter A1
Electric current.At this point, the voltage at the voltmeter V1 measurement both ends second resistance R2 is it can be appreciated that measure power panel E1 output to be measured
Voltage.
Further, load blocks 130 are second resistance R2.
The present embodiment is illustratively second resistance R2 confession by power panel E1 to be measured using second resistance R2 as load
Electricity, and using the electric current of voltmeter V1 and ammeter A1 measurement second resistance R2 and its voltage at both ends, and then according to measuring
Electrical parameter judges the source of failure of power panel E1 to be measured.Wherein, the specific resistance value embodiment of second resistance R2 is not construed as limiting.
The power panel of the present embodiment tests circuit, determines whether power panel to be measured is short-circuit, passes through electricity by short-circuit indicator light
Flow table and voltmeter measurement load blocks electrical parameter, the failure of power panel to be measured can be intuitively indicated out, convenient for test man into
Row test quickly determines the source of failure；And benefit can ensure power module by setting power supply indicator and Double-hole socket
Access power panel to be measured again after working normally, and in detecting circuit any portion there are when failure, test man can and
When disconnect switch or separate power panel to be measured and power panel test circuit, be further ensured that the safety of test process.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of power panel tests circuit characterized by comprising power module, short-circuit indicating module, load blocks and ginseng
Number measurement module；
The first end of the power module is electrically connected with the first end of short-circuit indicating module, the second end of the short circuit indicating module
It is electrically connected with the first incoming end of the power panel to be measured, the second access of the second end of the power module and power panel to be measured
End electrical connection, the first end of the load blocks pick out end with the first of the power panel to be measured and are electrically connected, the load blocks
Second end with the second of the power panel to be measured pick out end be electrically connected；
The parameters measurement module, for measuring the electrical parameter of the load blocks, the electrical parameter includes electric current and/or electricity
Pressure；
The short circuit indicating module, for determining whether the power panel to be measured is short-circuit.
2. power panel according to claim 1 tests circuit, which is characterized in that further include: power detection module；
The first end of the power detection module is electrically connected with the first end of the power module, and the of the power sense circuit
Two ends are electrically connected with the second end of the power module；
The power detection module, for detecting whether the power module works normally.
3. power panel according to claim 2 tests circuit, which is characterized in that the power detection module includes the first electricity
Resistance and power supply indicator, the first resistor and power supply indicator series connection；
The power supply indicator is lighted in turn-on current.
4. power panel according to claim 1 tests circuit, which is characterized in that further include: Double-hole socket；
The second end of the short circuit indicating module and the first incoming end of the circuit board under test pass through the Double-hole socket the
The electrical connection of one hole；
Second incoming end of the second end of the power module and the power panel to be measured passes through the second hole of the Double-hole socket
Electrical connection.
5. power panel according to claim 1 tests circuit, which is characterized in that the power module includes isolation transformation
Device, protective tube and alternating current；
The first end of the protective tube is electrically connected with the zero line of alternating current, and the second end and isolating transformer of the protective tube input
The first end of winding is electrically connected, and the second end of the isolating transformer input winding is electrically connected with the zero line side of the alternating current；
The first end of isolating transformer output winding is electrically connected with the first end of the short-circuit indicating module, the isolating transformer
The second end of output winding is electrically connected with the second input terminal of the power panel to be measured；
The isolating transformer, for reducing the voltage of the alternating current.
6. power panel according to claim 2 tests circuit, which is characterized in that further include: switch；
The first end of the power module is electrically connected with the first end of the switch, the second end of the switch respectively with it is described short
The electrical connection of the first end of the first end of road indicating module and the power detection module.
7. power panel according to claim 1 tests circuit, which is characterized in that the short circuit indicating module is short circuit instruction
Lamp.
8. power panel according to claim 1 or claim 7 tests circuit, which is characterized in that the power of the short circuit indicating module
Range are as follows: 100W-300W.
9. power panel according to claim 1 tests circuit, which is characterized in that the parameters measurement module includes voltmeter
And/or ammeter；
The voltmeter is used to measure the voltage between the first end of the load blocks and the second end of the load blocks；
The ammeter is for measuring the electric current that the power panel to be measured inputs the load blocks.
10. power panel according to claim 1 tests circuit, which is characterized in that the load blocks are second resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347516.3U CN208721757U (en) | 2018-08-21 | 2018-08-21 | A kind of power panel test circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347516.3U CN208721757U (en) | 2018-08-21 | 2018-08-21 | A kind of power panel test circuit |
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| CN208721757U true CN208721757U (en) | 2019-04-09 |
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| CN201821347516.3U Expired - Fee Related CN208721757U (en) | 2018-08-21 | 2018-08-21 | A kind of power panel test circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146829A (en) * | 2019-06-03 | 2019-08-20 | 山东华泰纸业股份有限公司 | A kind of direct-current switch power supply fault diagnosis easily-testing instrument and test method |
| CN111337783A (en) * | 2020-04-03 | 2020-06-26 | 深圳英集芯科技有限公司 | Test circuit and test method thereof |
-
2018
- 2018-08-21 CN CN201821347516.3U patent/CN208721757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146829A (en) * | 2019-06-03 | 2019-08-20 | 山东华泰纸业股份有限公司 | A kind of direct-current switch power supply fault diagnosis easily-testing instrument and test method |
| CN111337783A (en) * | 2020-04-03 | 2020-06-26 | 深圳英集芯科技有限公司 | Test circuit and test method thereof |
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