CN103592596A - Output isolation-type power-source PCB connecting board testing circuit - Google Patents
Output isolation-type power-source PCB connecting board testing circuit Download PDFInfo
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- CN103592596A CN103592596A CN201310498769.6A CN201310498769A CN103592596A CN 103592596 A CN103592596 A CN 103592596A CN 201310498769 A CN201310498769 A CN 201310498769A CN 103592596 A CN103592596 A CN 103592596A
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Abstract
The invention discloses an output isolation-type power-source PCB connecting board testing circuit. The output isolation-type power-source PCB connecting board testing circuit comprises a testing device and an electronic load for testing, and further comprises an AC power source, a driving power source, an AC power supply control module, a DC output control module and a single-chip PCB control conversion module. The AC power source is connected with the single-chip PCB control conversion module through the driving power source. The single-chip PCB control conversion module is respectively connected with the AC power supply control module and the DC output control module. The AC power source is connected with the AC power supply control module. The DC output control module is connected with the electronic load for testing. According to the output isolation-type power-source PCB connecting board testing circuit, the independent input and output functions of each unit board in the PCB connecting board testing are achieved, damaged and poor PCBs can be directly distinguished in the testing process, a PCB connecting board is not required to be taken out and disassembled into single boards to be tested again, and the testing efficiency of the PCB connecting board is improved.
Description
Technical field
The present invention relates to a kind of test circuit, specifically the isolated power supply PCB of a kind of output connecting plate test circuit.
Background technology
Growing along with scientific and technical progress and power supply industry, factory is also more and more higher to the test request of power panel, requires test speed faster simultaneously.To achieve these goals, just must reduce the false failure rate in test process, guarantee that the power panel in high speed test can not interact.At present, in the situation that only having a testing apparatus, as shown in Figure 1, conventional way is directly the negative pole that is arranged on the tested power panel on proving installation to be connected to (exporting DC end negative pole is connected) with test with the negative pole interface of electronic load, and utilize the anodal gauge tap of DC that power panel positive pole is connected to (be about to the proper utmost point of DC and connect respectively testing apparatus) with test by the anode interface of electronic load, then test.But existing, the power panel that this method of testing disconnects for part PCB negative pole circuit tests phenomenon by mistake; Because AC unifies supply line, the PCB connecting plate on proving installation is unified to power supply simultaneously, when wherein a pcb board damages, can not distinguish in time, but the taking-up of PCB connecting plate need to be split into veneer, resurvey, had a strong impact on testing efficiency.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides the isolated power supply PCB of a kind of output connecting plate test circuit, can realize each cell board independent input, output function in the test of PCB connecting plate, in test process, can directly distinguish the bad pcb board of damage, without again the taking-up of PCB connecting plate being split into veneer, resurvey, improve the testing efficiency of PCB connecting plate.
To achieve these goals, the isolated power supply PCB of a kind of output of the present invention connecting plate test circuit, comprise proving installation and test electronic load, also comprise that AC power supplies, driving power, AC power supply control module, DC output control module and monolithic PCB control modular converter; Described AC power supplies is controlled modular converter by driving power with monolithic PCB and is connected; Monolithic PCB controls modular converter and is connected with DC output control module with AC power supply control module respectively; AC power supplies is connected with AC power supply control module; DC output control module is connected with electronic load with test.
Described monolithic PCB controls the gauge tap that modular converter comprises that several also connect.
Described DC output control module comprises the relay identical with gauge tap quantity, each gauge tap and a relay series connection.
Compared with prior art, the present invention, by monolithic PCB being controlled to the control of modular converter, can realize each cell board independent input, output function in the test of PCB connecting plate; In test process, can directly distinguish the bad pcb board of damage, without again the taking-up of PCB connecting plate being split into veneer, resurvey, improve the testing efficiency of PCB connecting plate.
Accompanying drawing explanation
Fig. 1 is the principle schematic of existing test;
Fig. 2 is principle schematic of the present invention;
Fig. 3 is the circuit diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 2, this exports isolated power supply PCB connecting plate test circuit, comprises proving installation and test electronic load, also comprises that AC power supplies, driving power, AC power supply control module, DC output control module and monolithic PCB control modular converter; Described AC power supplies is controlled modular converter by driving power with monolithic PCB and is connected; Monolithic PCB controls modular converter and is connected with DC output control module with AC power supply control module respectively; AC power supplies is connected with AC power supply control module; DC output control module is connected with electronic load with test.
Test process: the PCB of required test is won in succession and is arranged on proving installation, and testing apparatus is connected with the output loop in DC output control module (note to distinguish both positive and negative polarity, can not reversal connection).AC power supplies is controlled modular converter by driving power to monolithic PCB on the one hand control voltage is provided, and wins in succession to the PCB being arranged on proving installation on the other hand voltage is provided by AC power supply control module.On the one hand, control monolithic PCB control modular converter to AC power supply control module send to PCB win in succession in the control signal of certain piece pcb board power supply, AC power supply control module is powered to corresponding pcb board after receiving this signal; Control on the other hand monolithic PCB and control modular converter to DC output control module transmission output control signal, and then realize the test to this pcb board.Now, because of the effect of monolithic PCB control modular converter, other pcb boards in can not winning in succession to PCB are powered, and other pcb boards can not cause interference to the pcb board of testing, and can not disturb its input, output voltage, and test accurately.By monolithic PCB, control the control of modular converter, can carry out the independently-powered and nearly control of output to each pcb board, make it unaffected each other, therefore when wherein a pcb board damages, can distinguish in time, without again the taking-up of PCB connecting plate being split into veneer, resurvey, improved the testing efficiency of PCB connecting plate.Simultaneously, when monolithic PCB controls modular converter to AC power supply control module transmission power supplying control signal, AC power supply control module any one veneer in can not winning in succession to PCB is powered, can avoid like this operator to touch because of carelessness pcb board and the generation of electric shock situation, safety coefficient has improved.
Described monolithic PCB controls the gauge tap that modular converter comprises that several also connect.Described DC output control module comprises the relay identical with gauge tap quantity, each gauge tap and a relay series connection.
As a kind of embodiment of the present invention, as shown in Figure 3, can be by power input voltage requirement input AC voltage.The AC voltage of input divides two-way: a road is to relay normally open Dian， mono-road to driving power, for pilot relay provides control voltage.During test connecting plate power panel, first connecting plate power panel is placed on proving installation, fixes; (note to distinguish both positive and negative polarity, can not reversal connection) be again connected testing apparatus with the output loop in DC output control module.Press monolithic PCB and control a plate in the corresponding connecting plate PCB of switch S B1(in modular converter), relay K M1 obtains trigger voltage, enters duty, electromagnetic actuation, make four controlled normally opened contact adhesives, PCB1L line, PCB1N line, PCB1D+, PCB1DC-circuit are connected.Circuit starts the voltage to plate input AC, and a plate obtains inputting output dc voltage after AC voltage starting.Now, due to the not work of the corresponding relay of other connecting plate, relay K M2, KM3 and KM4 do not work, circuit obstructed (each relay only to a PCB veneer power supply, with being connected of output dc voltage is provided); Therefore can not interfere with each other input, output voltage.Voltage shown in testing apparatus is very accurate.When trip switch SB1, because its characteristic can disconnect the trigger voltage of relay K M1, relay K M1 does not work, and has disconnected yet the input of AC voltage and the DC of a plate are exported simultaneously, and display no longer shows voltage readings.Press again No. two plates in the corresponding connecting plate PCB of switch S B2(), relay K M2 obtains trigger voltage, enter duty, workflow is with consistent above ... can be according to aforesaid operations, can press successively switch S B1, SB2, SB3 or SB4, each veneer of realizing during PCB is won in succession is tested, and can directly distinguish the bad pcb board of damage in test process, without again the taking-up of PCB connecting plate being split into veneer, resurvey, improved the testing efficiency of PCB connecting plate.In addition, can adjust as required the quantity of switch and corresponding relay, the test needs that its satisfied PCB that includes varying number veneer is won in succession.
Claims (3)
1. the isolated power supply PCB connecting plate test circuit of output, comprises proving installation and test electronic load, it is characterized in that, also comprises that AC power supplies, driving power, AC power supply control module, DC output control module and monolithic PCB control modular converter; Described AC power supplies is controlled modular converter by driving power with monolithic PCB and is connected; Monolithic PCB controls modular converter and is connected with DC output control module with AC power supply control module respectively; AC power supplies is connected with AC power supply control module; DC output control module is connected with electronic load with test.
2. the isolated power supply PCB of a kind of output according to claim 1 connecting plate test circuit, is characterized in that, described monolithic PCB controls the gauge tap that modular converter comprises that several also connect.
3. the isolated power supply PCB of a kind of output according to claim 2 connecting plate test circuit, is characterized in that, described DC output control module comprises the relay identical with gauge tap quantity, each gauge tap and a relay series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498769.6A CN103592596A (en) | 2013-10-22 | 2013-10-22 | Output isolation-type power-source PCB connecting board testing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498769.6A CN103592596A (en) | 2013-10-22 | 2013-10-22 | Output isolation-type power-source PCB connecting board testing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103592596A true CN103592596A (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310498769.6A Pending CN103592596A (en) | 2013-10-22 | 2013-10-22 | Output isolation-type power-source PCB connecting board testing circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163133A (en) * | 2016-08-23 | 2016-11-23 | 黄河科技学院 | There is the multifunctional comprehensive circuit debugging system of circuit welding function |
| CN112147485A (en) * | 2020-09-15 | 2020-12-29 | 南京静春星电子商务有限公司 | Energy-conserving detection device of circuit board break-make of inside electronic product design of TV set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO1996029610A2 (en) * | 1995-03-16 | 1996-09-26 | Teradyne, Inc. | Manufacturing defect analyzer with improved fault coverage |
| CN201421487Y (en) * | 2009-05-31 | 2010-03-10 | 广州飞机维修工程有限公司 | On-line function detecting and fault removing system of circuit board |
| US20110175622A1 (en) * | 2010-01-21 | 2011-07-21 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Testing device for printed circuit boards |
| CN103033738A (en) * | 2012-12-20 | 2013-04-10 | 全天自动化能源科技（东莞）有限公司 | Automatic test system for circuit board |
| CN203616438U (en) * | 2013-10-22 | 2014-05-28 | 徐州市恒源电器有限公司 | Output isolation-type power-source PCB connecting board testing circuit |
-
2013
- 2013-10-22 CN CN201310498769.6A patent/CN103592596A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996029610A2 (en) * | 1995-03-16 | 1996-09-26 | Teradyne, Inc. | Manufacturing defect analyzer with improved fault coverage |
| CN201421487Y (en) * | 2009-05-31 | 2010-03-10 | 广州飞机维修工程有限公司 | On-line function detecting and fault removing system of circuit board |
| US20110175622A1 (en) * | 2010-01-21 | 2011-07-21 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Testing device for printed circuit boards |
| CN103033738A (en) * | 2012-12-20 | 2013-04-10 | 全天自动化能源科技（东莞）有限公司 | Automatic test system for circuit board |
| CN203616438U (en) * | 2013-10-22 | 2014-05-28 | 徐州市恒源电器有限公司 | Output isolation-type power-source PCB connecting board testing circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163133A (en) * | 2016-08-23 | 2016-11-23 | 黄河科技学院 | There is the multifunctional comprehensive circuit debugging system of circuit welding function |
| CN106163133B (en) * | 2016-08-23 | 2018-09-04 | 黄河科技学院 | Multifunctional comprehensive circuit debugging system with circuit welding function |
| CN112147485A (en) * | 2020-09-15 | 2020-12-29 | 南京静春星电子商务有限公司 | Energy-conserving detection device of circuit board break-make of inside electronic product design of TV set |
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Application publication date: 20140219 |