CN211123081U - Direct current capacitor ripple test circuit - Google Patents
Direct current capacitor ripple test circuit Download PDFInfo
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- CN211123081U CN211123081U CN201921827230.XU CN201921827230U CN211123081U CN 211123081 U CN211123081 U CN 211123081U CN 201921827230 U CN201921827230 U CN 201921827230U CN 211123081 U CN211123081 U CN 211123081U
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- 238000012360 testing method Methods 0.000 title claims abstract description 74
- 239000003990 capacitor Substances 0.000 title claims description 29
- 238000002955 isolation Methods 0.000 claims abstract description 30
- 239000000523 sample Substances 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000007600 charging Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a direct current electric capacity ripple test circuit, including auxiliary power supply, signal source, power amplifier power, ring transformer, isolation transformer, direct current power supply circuit, circuit breaker, test section. The utility model provides a can effectively solve the test circuit who relates to among the current test equipment, because it is reasonable inadequately to design, the problem of satisfying the test demand that can not be fine.
Description
Technical Field
The utility model relates to a direct current electric capacity ripple test circuit.
Background
In production, the direct current capacitor needs to be tested for various performances before leaving a factory, and a test circuit related to the existing test equipment cannot well meet test requirements because the design is not reasonable enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a direct current electric capacity ripple test circuit solves the test circuit who relates to among the current test equipment, because it is reasonable inadequately to design, the problem of satisfying the test demand that can not be fine.
The utility model provides a technical scheme that its technical problem adopted is: a direct current capacitor ripple test circuit comprises an auxiliary power supply, a signal source, a power amplifier power supply, a ring transformer, an isolation transformer, a direct current power supply circuit, a circuit breaker and a test part;
the output end of the auxiliary power supply is connected with the power supply input end of the signal source, and the signal output end of the signal source is connected with the signal input end of the power amplifier; the output end of the toroidal transformer is respectively connected with the alternating current input end of the power amplifier power supply and the alternating current input end of the power amplifier; the direct current output end of the power amplifier power supply is connected with the direct current input end of the power amplifier;
the power output end of the power amplifier is connected with the input end of the isolation transformer, and the output end of the isolation transformer is connected in series between the direct-current power supply circuit and the circuit breaker;
the testing part is connected in series behind the circuit breaker and comprises a plurality of groups of testing ends which are connected in parallel, and each group of testing ends comprises two testing ports which are respectively used for being connected with two ends of the capacitor to be tested.
Furthermore, in the plurality of groups of test ends, one group of test ends is not provided with fuses, and the other groups of test ends are provided with fuses.
Furthermore, the signal source is provided with a signal testing end, a signal frequency display output end, a group of frequency selection ends, a group of waveform selection ends, an amplitude adjustment potentiometer and a frequency adjustment potentiometer, and a reset switch is arranged between the signal source and the auxiliary power supply.
Further, the power amplifier is provided with an alternating current regulating potentiometer.
Furthermore, a voltage display port is arranged at the output end of the isolation transformer, and a current display port is arranged between the isolation transformer and the circuit breaker.
Furthermore, the direct current power supply circuit comprises a direct current power supply, and the direct current power supply circuit is provided with a direct current voltage regulating potentiometer, a direct current regulating potentiometer and a starting standby switch.
Furthermore, a plurality of test points are arranged between the circuit breaker and the output end of the isolation transformer and between the output end of the isolation transformer and the direct current.
The temperature control alarm circuit comprises a plurality of temperature controllers and probes connected with the temperature controllers, and the probes can be arranged on a capacitor to be tested; the temperature controllers, the probes and the capacitors to be tested are in one-to-one correspondence.
Furthermore, the model of the signal source chip is IC L-8038, the model of the auxiliary power supply is 24V, the model of the power amplifier is 1500W, the model of the ring transformer is 1500W, the model of the direct current power supply is 650V and 2A, the model of the isolation transformer is 1000W, the model of the breaker is DZ47-63A, the model of the temperature controller is CHB-400 ℃, and the model of the probe is-40-400 ℃.
The utility model has the advantages that: the auxiliary power supply, the signal source, the power amplifier power supply, the ring transformer, the isolation transformer, the direct-current power supply circuit, the circuit breaker and the testing part are arranged, a direct-current working power supply and an alternating-current working power supply are applied to a capacitor to be tested to form a series connection, alternating current on the capacitor to be tested is ripple current, and the vertical direction of the ripple current can directly reflect the energy storage and charging and discharging capacity of the capacitor under the same power supply condition; ripple current generated under the alternating current work of different frequencies can reflect the frequency working characteristics of the capacitor to be tested; the working temperature of the capacitor under the same ripple circuit can reflect the temperature working characteristics and the service life of the capacitor to be tested; the design rationality of the appearance, chip package and electrolyte of the capacitor to be tested can be inversely followed by the ripple current data; meanwhile, the direct current withstand voltage test of the capacitor can be carried out, and the direct current leakage current test of the capacitor can also be carried out.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
In an embodiment, as shown in fig. 1, a dc capacitor ripple test circuit includes an auxiliary power supply 1, a signal source 2, a power amplifier 3, a power amplifier power supply 4, a toroidal transformer 5, an isolation transformer 6, a dc power supply circuit 7, a circuit breaker 8, and a test portion 9;
the output end of the auxiliary power supply 1 is connected with the power supply input end of the signal source 2, and the signal output end of the signal source 2 is connected with the signal input end of the power amplifier 3; the toroidal transformer 5 is externally connected with a 220V power supply, and the output end of the toroidal transformer 5 is respectively connected with the alternating current input end of the power amplifier power supply 4 and the alternating current input end of the power amplifier 3; the direct current output end of the power amplifier power supply 4 is connected with the direct current input end of the power amplifier 3;
the power output end of the power amplifier 3 is connected with the input end of an isolation transformer 6, and the output end of the isolation transformer 6 is connected in series between a direct-current power supply circuit 7 and a circuit breaker 8;
the test part 9 is connected in series behind the circuit breaker 8 and comprises a plurality of groups of test terminals 10 which are connected in parallel, and each group of test terminals 10 comprises two test ports which are respectively used for being connected with two ends of the capacitor to be tested.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The direct current capacitor ripple test circuit comprises an auxiliary power supply 1, a signal source 2, a power amplifier 3, a power amplifier power supply 4, a ring transformer 5, an isolation transformer 6, a direct current power supply circuit 7, a circuit breaker 8 and a test part 9, wherein the auxiliary power supply 1 is connected with the signal source 2;
the output end of the auxiliary power supply 1 is connected with the power supply input end of the signal source 2, and the signal output end of the signal source 2 is connected with the signal input end of the power amplifier 3; the toroidal transformer 5 is externally connected with a 220V power supply, and the output end of the toroidal transformer 5 is respectively connected with the alternating current input end of the power amplifier power supply 4 and the alternating current input end of the power amplifier 3; the direct current output end of the power amplifier power supply 4 is connected with the direct current input end of the power amplifier 3;
the power output end of the power amplifier 3 is connected with the input end of an isolation transformer 6, and the output end of the isolation transformer 6 is connected in series between a direct-current power supply circuit 7 and a circuit breaker 8;
the test part 9 is connected in series behind the circuit breaker 8 and comprises a plurality of groups of test terminals 10 which are connected in parallel, and each group of test terminals 10 comprises two test ports which are respectively used for being connected with two ends of the capacitor to be tested.
In the plurality of groups of test terminals 10, one group of test terminals 10 is not provided with fuses, and the other groups of test terminals 10 are provided with fuses. The fuse is not arranged and is used for testing the ripple wave of the large-capacity capacitor.
The signal source 2 is provided with a signal testing end 11, a signal frequency display output end 12, a group of frequency selection ends 13, a group of waveform selection ends 14, an amplitude adjustment potentiometer 15 and a frequency adjustment potentiometer 16, and a reset switch 17 is arranged between the signal source 2 and the auxiliary power supply 1. The signal testing end 11 is externally connected with an oscilloscope for signal waveform display; the signal frequency display output end 12 is externally connected with a frequency display meter and is used for displaying signal frequency; the frequency selection end 13 is externally connected with a frequency gear selection knob, can select the frequency of the signal output by the signal source 2, and is provided with four gears which are respectively 20-400HZ, 150HZ-2KHZ, 1.5-18KHZ and 12-140 KHZ; the waveform selection end 14 is externally connected with a waveform selection knob and can select four gears of a square wave, a triangular wave, a sine wave and a closing end; the amplitude adjustment alternating potentiometer 15 is used for signal output amplitude adjustment; the frequency adjustment potentiometer 16 is used for signal output frequency adjustment; the reset switch 17 is used for resetting when the signal source 2 fails.
The power amplifier 3 is provided with an alternating current regulating potentiometer 18. The ac current adjustment potentiometer 18 is used for output power adjustment of the power amplifier 3.
The output end of the isolation transformer 6 is provided with a voltage display port 19, and a current display port 20 is arranged between the isolation transformer 6 and the breaker 8. The voltage display port 19 and the current display port 20 can be externally connected with an alternating current voltmeter and an alternating current ammeter.
The dc power supply circuit 7 includes a dc power supply 21, and the dc power supply circuit 7 is provided with a dc voltage adjustment potentiometer 22, a dc current adjustment potentiometer 23, and a startup standby switch 24. The dc voltage adjustment potentiometer 22 is used for output voltage adjustment of the dc power supply; the dc current adjustment potentiometer 23 is used for output current adjustment of the dc power supply;
a plurality of test points 25 are arranged between the circuit breaker 8 and the output of the isolating transformer 6 and between the output of the isolating transformer 6 and the direct current. The test point 25 is flexibly and freely selected, such as the withstand voltage, the leakage, the ripple wave and the like of the capacitor to be tested can be tested, and the test point 25 is directly arranged at the output end of the direct-current power supply when the withstand voltage and the leakage are tested; for example, the test points 25 are respectively arranged after the output end of the direct current power supply and the output end of the isolation transformer 6.
The direct current capacitor ripple test circuit also comprises a temperature control alarm circuit 27 connected with the output end of the auxiliary power supply 1, wherein the temperature control alarm circuit 27 comprises a plurality of temperature controllers 28 and probes 29 connected with the temperature controllers 28, and the probes 29 can be arranged on a capacitor to be tested; the temperature controller 28, the probe 29 and the capacitor to be tested are in one-to-one correspondence. When in testing, the problem of the capacitance to be tested is solved, and if the problem exceeds the set temperature, an alarm is given.
The model of a chip of a signal source 2 is IC L-8038, the model of an auxiliary power supply 1 is 24V, the model of a power amplifier 3 is 1500W, the model of a power amplifier power supply 4 is 1500W, the model of a ring transformer 5 is 1500W, the model of a direct current power supply is 650V and 2A, the model of an isolation transformer 6 is 1000W, the model of a breaker 8 is DZ47-63A, the model of a temperature controller 28 is CHB-400 ℃, and the model of a probe 29 is-40-400 ℃.
The auxiliary power supply 1 outputs voltage to the signal source 2 and the temperature control alarm circuit 27, and the signal source 2 outputs signals to the power amplifier 3; the toroidal transformer 5 outputs voltage to the power amplifier power supply 4 and the power amplifier 3, and the power amplifier power supply 4 converts alternating current voltage output by the toroidal transformer 5 into direct current voltage and transmits the direct current voltage to the power amplifier 3; the power amplifier 3 amplifies the signal provided by the signal source 2 and transmits the amplified signal to the test circuit through the isolation transformer 6; the DC power supply circuit 7 part provides a DC voltage and current signal and an AC voltage signal output by the isolation transformer 6 to the test circuit after mixing.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (9)
1. The utility model provides a direct current capacitance ripple test circuit which characterized in that: the device comprises an auxiliary power supply, a signal source, a power amplifier power supply, a ring transformer, an isolation transformer, a direct-current power supply circuit, a circuit breaker and a testing part;
the output end of the auxiliary power supply is connected with the power supply input end of the signal source, and the signal output end of the signal source is connected with the signal input end of the power amplifier; the output end of the toroidal transformer is respectively connected with the alternating current input end of the power amplifier power supply and the alternating current input end of the power amplifier; the direct current output end of the power amplifier power supply is connected with the direct current input end of the power amplifier;
the power output end of the power amplifier is connected with the input end of the isolation transformer, and the output end of the isolation transformer is connected in series between the direct-current power supply circuit and the circuit breaker;
the testing part is connected in series behind the circuit breaker and comprises a plurality of groups of testing ends which are connected in parallel, and each group of testing ends comprises two testing ports which are respectively used for being connected with two ends of the capacitor to be tested.
2. The dc capacitive ripple test circuit of claim 1, wherein: in the plurality of groups of test ends, one group of test ends is not provided with fuses, and the other groups of test ends are provided with fuses.
3. The dc capacitive ripple test circuit of claim 1, wherein: the signal source is provided with a signal testing end, a signal frequency display output end, a group of frequency selection ends, a group of waveform selection ends, an amplitude adjustment potentiometer and a frequency adjustment potentiometer, and a reset switch is arranged between the signal source and the auxiliary power supply.
4. The dc capacitive ripple test circuit of claim 1, wherein: the power amplifier is provided with an alternating current regulating potentiometer.
5. The dc capacitive ripple test circuit of claim 1, wherein: and a voltage display port is arranged at the output end of the isolation transformer, and a current display port is arranged between the isolation transformer and the circuit breaker.
6. The dc capacitive ripple test circuit of claim 1, wherein: the direct current power supply circuit comprises a direct current power supply, and the direct current power supply circuit is provided with a direct current voltage regulating potentiometer, a direct current regulating potentiometer and a starting standby switch.
7. The dc capacitive ripple test circuit of claim 1, wherein: and a plurality of test points are arranged between the circuit breaker and the output end of the isolation transformer and between the output end of the isolation transformer and the direct current.
8. The dc capacitive ripple test circuit of any one of claims 1 to 7, wherein: the temperature control alarm circuit comprises a plurality of temperature controllers and probes connected with the temperature controllers, and the probes can be arranged on the capacitor to be tested; the temperature controllers, the probes and the capacitors to be tested are in one-to-one correspondence.
9. The DC capacitor ripple test circuit according to claim 8, wherein the signal source chip has a model of IC L-8038, the auxiliary power supply has a model of 24V, the power amplifier has a model of 1500W, the toroidal transformer has a model of 1500W, the DC power supply has a model of 650V, 2A, the isolation transformer has a model of 1000W, the circuit breaker has a model of DZ47-63A, the temperature controller has a model of CHB-400 ℃, and the probe has a model of-40-400 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921827230.XU CN211123081U (en) | 2019-10-28 | 2019-10-28 | Direct current capacitor ripple test circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921827230.XU CN211123081U (en) | 2019-10-28 | 2019-10-28 | Direct current capacitor ripple test circuit |
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| CN211123081U true CN211123081U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117269632A (en) * | 2022-06-14 | 2023-12-22 | 南通市崇川区恒生电子设备厂 | A durability test system for capacitors |
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2019
- 2019-10-28 CN CN201921827230.XU patent/CN211123081U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117269632A (en) * | 2022-06-14 | 2023-12-22 | 南通市崇川区恒生电子设备厂 | A durability test system for capacitors |
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