CN203204134U - Power supply adjustment rate tester - Google Patents
Power supply adjustment rate tester Download PDFInfo
- Publication number
- CN203204134U CN203204134U CN 201320264358 CN201320264358U CN203204134U CN 203204134 U CN203204134 U CN 203204134U CN 201320264358 CN201320264358 CN 201320264358 CN 201320264358 U CN201320264358 U CN 201320264358U CN 203204134 U CN203204134 U CN 203204134U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- line regulation
- output terminal
- processing unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model discloses a power supply adjustment rate tester. The power supply adjustment rate tester comprises a power source and a central processor, and further comprises a rectifier/filter circuit, a voltage conversion circuit, an inverter circuit, an input/output circuit and a measuring circuit, which are successively connected with each other, wherein an input terminal of the rectifier/filter circuit is connected with an output terminal of the power source, and an output terminal of the measuring circuit is connected with the central processor. A driver circuit is disposed between an output terminal of the central processor and an input terminal of the inverter circuit, and a feedback circuit is disposed between an output terminal of the inverter circuit and an input terminal of the central processor. After treatment of the rectifier/filter circuit, the voltage conversion circuit, the inverter circuit, the input/output circuit, the measuring circuit and the central processor, the frequency and the magnitude of the power supply voltage can be adjusted in a large range, the waveform of the power supply voltage can be selectable, the power supply adjustment rate tester is equipped with a fundamental wave function, reflection of power grid voltage characteristics can be realized preferably, and adaptive capacity of a switching power supply for an input power voltage can be tested preferably.
Description
Technical field
The utility model relates to a kind of testing apparatus of testing power supply switch product, particularly relates to a kind of line regulation tester.
Background technology
Line regulation test be the Test Switchboard power supply product when input supply voltage is changed, the test of the stability of out-put supply, the conformability when being the Test Switchboard power supply to mains fluctuations, the input voltage range of normal operation.The line regulation tester of main flow is comprehensive in the Switching Power Supply tester at present, system's bulky complex.It is comparatively thin that function aspect line regulation seems, little such as frequency, amplitude adjusted scope, the problem such as wave mode is not optional.Can not produce and include the repeatedly voltage signal of first-harmonic of power frequency.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of line regulation tester is provided, and is multiple functional, and Effective Raise the input power adaptive faculty of Test Switchboard power supply.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of line regulation tester, comprise power supply and central processing unit, further comprise successively interconnective current rectifying and wave filtering circuit, voltage conversion circuit, inverter circuit, imput output circuit and metering circuit, the input end of current rectifying and wave filtering circuit connects power output end, and the output terminal of metering circuit connects central processing unit;
Between the output terminal of described central processing unit and the input end of inverter circuit one drive circuit is set also;
Between the output terminal of described inverter circuit and the input end of central processing unit a feedback circuit is set also.
Preferably, the output terminal of described central processing unit is electrically connected with the input end of voltage conversion circuit.
Described voltage conversion circuit is Buck-Boost buck translation circuit.
Preferably, described inverter circuit is the H bridge inverter circuit.
Described H bridge is comprised of igbt transistor.
Preferably, described driving circuit is the SPWM driving circuit.
Preferably, described feedback circuit is comprised of DAC circuit, adc circuit and discharge circuit.
Preferably, described metering circuit is comprised of adc circuit, DAC circuit and discharge circuit.
Preferably, described line regulation tester further comprises an accessory power supply for the tester power supply, is connected to power output end.
Preferably, described line regulation tester comprises that further one is connected to the voice-control alarm circuit of central processing unit output terminal.
Compared with prior art, the beneficial effects of the utility model are: by rising the processing of current rectifying and wave filtering circuit, voltage conversion circuit, inverter circuit, imput output circuit, metering circuit and central processing unit, realize frequency, amplitude on a large scale adjustable, waveform is optional, and possesses the first-harmonic function, can react better the feature that realizes line voltage, better the input power adaptive faculty of Test Switchboard power supply.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, in order to technical characterictic of the present utility model and advantage are carried out more deep annotation.
Electrical block diagram of the present utility model as shown in Figure 1, a kind of line regulation tester, comprise power supply and central processing unit, further comprise successively interconnective current rectifying and wave filtering circuit, voltage conversion circuit, inverter circuit, imput output circuit and metering circuit, the input end of current rectifying and wave filtering circuit connects power output end, and the output terminal of metering circuit connects central processing unit; Between the output terminal of described central processing unit and the input end of inverter circuit one drive circuit is set also; Between the output terminal of described inverter circuit and the input end of central processing unit a feedback circuit is set also.
Central processing unit is realized the control to tester, comprises man-machine interface, feedback signal collection, algorithm process etc.Adjust frequency and the amplitude of supply voltage by man-machine interface, for example in the utility model, the Frequency and Amplitude wave mode all can be controlled, frequency is 0～1KHz, stepping is that 1Hz is adjustable, and amplitude is 0～400V, and stepping is 1V, wave mode comprises sine wave, triangular wave, the square wave of standard and includes repeatedly the sine wave of first-harmonic, and the first-harmonic number is adjustable.
Preferably, the output terminal of described central processing unit is electrically connected with the input end of voltage conversion circuit.
Described voltage conversion circuit is that the Buck-Boost translation circuit is also referred to as (Buck-Boost) buck translation circuit.
Preferably, described inverter circuit is the H bridge inverter circuit.
Described H bridge is by IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) the transistor composition.
Preferably, described driving circuit is the abbreviation of the English Sinusoidal PWM of SPWM() driving circuit.So-called SPWM has changed the modulating pulse mode on the basis of PWM exactly, and the pulse width time dutycycle is arranged by sinusoidal rule, and output waveform can be accomplished sinewave output through suitable filtering like this.It is widely used for dc-to-ac inverter etc., is exactly an example such as more senior UPS.Three-phase SPWM is the three-phase output of using SPWM simulation civil power, is adopted widely in the frequency converter field.
Current rectifying and wave filtering circuit, Buck-Boost translation circuit and driving circuit have formed the DC circuit for producing high voltage, namely realize the power frequency supply isolation of 220V and are converted to the controlled dc voltage output of 0～600V amplitude.
Preferably; described feedback circuit is by the abbreviation of the English Digital to of DAC(analog converter; digital analog converter) abbreviation of circuit, the English Analog to of ADC(digital converter; analog-digital converter) circuit and discharge circuit form; realize that the feedback of self output voltage, electric current measures and calibration, comprise overvoltage, overcurrent, overheating protection etc.Described discharge circuit is accurate discharge circuit.(the amplifier model can be ADA4077-2)
Preferably, described metering circuit is comprised of adc circuit, DAC circuit and discharge circuit.Described discharge circuit is the ultraprecise discharge circuit, realizes that the collection of tested power supply voltage signal is measured at a high speed.(the amplifier model can be OP177)
Preferably, described line regulation tester further comprises an accessory power supply for the tester power supply, is connected to power output end.
Preferably, described line regulation tester comprises that further one is connected to the voice-control alarm circuit of central processing unit output terminal.Described voice-control alarm circuit generally is comprised of loudspeaker, after for example test is finished, and sounding sound reminding user.Perhaps to instrument overvoltage, overcurrent and superheat protection, when detecting overvoltage, overcurrent or when overheated, the reminding user of sounding in case of necessity, stops test automatically.
Surveying work principle: user's setting voltage change process, (can arrange continuous 100 sections, every period is 20ms ~ 1000s, every section voltage amplitude, frequency, wave mode and tested voltage triggered voltage etc. parameter can independently arrange), after connecting the IO interface of ripple survey power supply, when pressing feeler switch, with regard to switch testing, the signal parameter Maximum Power Output of setting by the user is the voltage signal of 200W, gather simultaneously and record the output voltage of tested power supply, when detecting when meeting trigger pip, will close output, stop test.After test is finished, sounding sound reminding user.Instrument has the overvoltage, overcurrent and superheat defencive function, when detecting overvoltage, and overcurrent or when overheated, the reminding user of sounding in case of necessity, stops test automatically.
The test of the tester that the utility model is put down in writing divides automatic test, the test modules such as follow-on test and manual test, when automatically testing, can automatically detect tested power supply access equipment under test after, fixed archives are tested automatically to start user preset.Follow-on test is after test is finished, and waits that (this time can be set by the user) starts test after a period of time.Manual test is when by testing button or outer triggering signal input being arranged by the user, starts test.
By the technical scheme among the above embodiment the utility model is carried out clear, complete description, obvious described embodiment is the embodiment of the utility model part, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Claims (10)
1. a line regulation tester comprises power supply and central processing unit, it is characterized in that:
Further comprise successively interconnective current rectifying and wave filtering circuit, voltage conversion circuit, inverter circuit, imput output circuit and metering circuit, the input end of current rectifying and wave filtering circuit connects power output end, and the output terminal of metering circuit connects central processing unit;
Between the output terminal of described central processing unit and the input end of inverter circuit one drive circuit is set also;
Between the output terminal of described inverter circuit and the input end of central processing unit a feedback circuit is set also.
2. line regulation tester according to claim 1, it is characterized in that: the output terminal of described central processing unit is electrically connected with the input end of voltage conversion circuit.
3. line regulation tester according to claim 2, it is characterized in that: described voltage conversion circuit is Buck-Boost buck translation circuit.
4. line regulation tester according to claim 1, it is characterized in that: described inverter circuit is the H bridge inverter circuit.
5. line regulation tester according to claim 4, it is characterized in that: described H bridge is comprised of igbt transistor.
6. line regulation tester according to claim 1, it is characterized in that: described driving circuit is the SPWM driving circuit.
7. line regulation tester according to claim 1, it is characterized in that: described feedback circuit is comprised of DAC circuit, adc circuit and discharge circuit.
8. line regulation tester according to claim 1, it is characterized in that: described metering circuit is comprised of adc circuit, DAC circuit and discharge circuit.
9. each described line regulation tester according to claim 1-8 is characterized in that: described line regulation tester further comprises an accessory power supply for the tester power supply, is connected to power output end.
10. each described line regulation tester according to claim 1-8 is characterized in that: described line regulation tester comprises that further one is connected to the voice-control alarm circuit of central processing unit output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320264358 CN203204134U (en) | 2013-05-15 | 2013-05-15 | Power supply adjustment rate tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320264358 CN203204134U (en) | 2013-05-15 | 2013-05-15 | Power supply adjustment rate tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203204134U true CN203204134U (en) | 2013-09-18 |
Family
ID=49148230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320264358 Expired - Fee Related CN203204134U (en) | 2013-05-15 | 2013-05-15 | Power supply adjustment rate tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203204134U (en) |
-
2013
- 2013-05-15 CN CN 201320264358 patent/CN203204134U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106998147B (en) | Energy-saving multifunctional simulated electricity load device and control method thereof | |
| CN102520248A (en) | Insulation resistance and grounding resistance comprehensive tester based on programmable power supply | |
| CN106950512B (en) | Energy storage converter grid-connected and grid-disconnected characteristic integrated detection system and method | |
| CN103439543B (en) | Realize the apparatus and method of current DC even-order harmonic, subharmonic, odd harmonic | |
| CN107543991B (en) | Harmonic immunity test device and test method for low-voltage switch and control equipment | |
| CN108535602B (en) | Automatic voltage sag test platform | |
| CN108646207A (en) | Direct current measuring devices current step standard source experimental rig and method | |
| CN101924367A (en) | High-power intelligent harmonic and reactive current generating device based on IGBT | |
| CN105634025A (en) | Grid-connected inversion device in direct current microgrid | |
| CN207301193U (en) | A kind of electronic direct current transformer transient characterisitics experimental rig | |
| CN106501691B (en) | Portable high-voltage frequency converter power unit comprehensive detection device | |
| CN202153252U (en) | Induction over-voltage-resistance tester based on AC frequency conversion technology | |
| CN203722483U (en) | Three-phase programmable AC power supply device | |
| CN203204134U (en) | Power supply adjustment rate tester | |
| CN203396801U (en) | Device for achieving current harmonic and detection and testing device for error influence quantity of watt-hour meter | |
| CN203216993U (en) | Power-grid harmonic real-time online monitor | |
| CN205945506U (en) | High voltage generator and drive arrangement thereof | |
| CN205193269U (en) | A voltage drop test appearance for smart electric meter | |
| CN106646198B (en) | It is a kind of with can test and Real-time Feedback IC electrical characteristics test method | |
| CN107765099B (en) | Broadband testing device and method for measuring impedance of grounding body | |
| CN202374183U (en) | Electronic alternating-current instantaneous constant-current source | |
| CN103312183B (en) | For power supply and the method for testing thereof of reactor performance test in phase control rectifier circuit | |
| CN201663560U (en) | Synchronistic and frequency-doubled saw-toothed carrier generating circuit of high-frequency link matrix inverter | |
| CN204649934U (en) | Motor and consumer electric test device | |
| CN209281210U (en) | A kind of idle simulation generator of harmonic wave |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140515 |