CN205039714U - Ageing instrument of energy -conserving electronic load - Google Patents
Ageing instrument of energy -conserving electronic load Download PDFInfo
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- CN205039714U CN205039714U CN201520833400.0U CN201520833400U CN205039714U CN 205039714 U CN205039714 U CN 205039714U CN 201520833400 U CN201520833400 U CN 201520833400U CN 205039714 U CN205039714 U CN 205039714U
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Abstract
The utility model relates to an integrated circuit designs the field, especially relates to an ageing instrument of energy -conserving electronic load, including power supply, contravariant step up the control unit, high frequency full -bridge rectifying and wave -filtering unit, low frequency full -bridge rectifying and wave -filtering unit, voltage doubler rectifier circuit and afterflow reactor. The utility model discloses convert the 220V alternating current into about 300V DC voltage through low frequency full -bridge rectifying and wave -filtering unit, this voltage offers electronic load and ages, and output voltage after the electronic load work is through the contravariant the control unit that steps up, converts about 300V DC voltage into through high frequency full -bridge rectifying and wave -filtering unit, and through the afterflow of afterflow reactor, offer electronic load once more and age, the utility model discloses circuit structure is simple, and the device is few, the easy realization, great reduction manufacturing cost, the effectual electric energy of having saved simultaneously provides the guarantee for the quality that improves the electric vehicle charging ware.
Description
Technical field
The utility model relates to integrated circuit (IC) design field, particularly relates to a kind of energy-conservation electronic load ageing instrument.
Background technology
Along with industrial expansion, electric motor car industry constantly promotes, and electric motor car enjoys a good market both at home and abroad.As the charger of one of the large parts of electric motor car four, because the structure of charger, cost are easily manufactured, domestic a lot of big, medium-sized and small enterprises constantly emerges, in order to improve the quality of charger, need through the destructive ageing test of energising, charger manufacturer all gives the mode ageing test of constant current usually with the cell load of energy-dissipating type or Power Resistor, electric energy conversion is that heat distributes, and consumes State Grid's resource greatly.Simultaneously because a lot of medium-sized and small enterprises of severe competition in market are because of without good aging equipment, do not do ageing test, reduce charger cost, therefore current charger market quality is extremely low.
Utility model content
The technical problems to be solved in the utility model there are provided one and greatly reduces power consumption, thus improves the energy-conservation electronic load ageing instrument of charger quality.
Realize the technical scheme of the utility model object, a kind of energy-conservation electronic load ageing instrument, comprise power supply, inversion boosting control unit, high frequency full-bridge rectifier filter unit, low frequency full bridge rectification filtering unit, voltage doubling rectifing circuit and afterflow reactor, power supply is connected with low frequency full bridge rectification filtering unit and voltage doubling rectifing circuit input respectively, the output of voltage doubling rectifing circuit is connected with the input of inversion boosting control unit, the output of described inversion boosting control unit is connected with high frequency full-bridge rectifier filter unit, high frequency full-bridge rectifier filter unit is connected with one end of afterflow reactor, the other end of afterflow reactor is connected with the power end of electronic load, the output of electronic load is connected with voltage doubling rectifing circuit input.
As prioritization scheme of the present utility model, inversion boosting control unit comprises PWM generator, field effect transistor Q1, field effect transistor Q2 and high frequency transformer T2, described PWM generator exports phase-veversal switch signal and controls field effect transistor Q1 and field effect transistor Q2 conducting in turn respectively, the first former limit of described field effect transistor Q1 and high frequency transformer T2 connects, described field effect transistor Q2 is connected with the second former limit of high frequency transformer T2, and first secondary of high frequency transformer T2 is connected with low frequency full bridge rectification filtering unit.
As prioritization scheme of the present utility model, inversion boosting control unit also comprises Isobarically Control loop, comprise adjustable resistance VR, Zener diode ZD1, resistance R6, resistance R2 and electric capacity C4, described resistance R2 and electric capacity C4 composes in parallel the 9th pin that filter circuit is connected to PWM generator, and adjustable resistance VR, Zener diode ZD1 are connected the 9th pin of PWM generator after connecting with resistance R6.
As prioritization scheme of the present utility model, power supply is the alternating current of 220V, is connected with fuse and RT thermistor between power supply and voltage doubling rectifing circuit.
As prioritization scheme of the present utility model, voltage doubling rectifing circuit comprises Industrial Frequency Transformer T1, diode D5, diode D6, electric capacity C1 and electric capacity C2, the former limit of Industrial Frequency Transformer T1 is connected with the output of fuse and the output of RT thermistor respectively, one end of the secondary of Industrial Frequency Transformer T1 is connected with the positive pole of diode D5, the negative pole of diode D6 is connected with the positive pole of diode D5, the other end of the secondary of Industrial Frequency Transformer T1 is connected with the negative pole of electric capacity C1, and the negative pole of electric capacity C1 is connected with the positive pole of electric capacity C2.
As prioritization scheme of the present utility model, afterflow reactor is inductance coil.
As prioritization scheme of the present utility model, electronic load is electric car charger.
The utility model has positive effect: 220V alternating current is converted to about 300V direct voltage by low frequency full bridge rectification filtering unit by the utility model, this voltage is supplied to electronic load and carries out aging, output voltage after electronic load work is by inversion boosting control unit, be about 300V direct voltage by high frequency full-bridge rectifier filter cell translation, by the afterflow of afterflow reactor, again being supplied to electronic load carries out aging, the utility model circuit structure is simple, device is few, easy realization, greatly reduce production cost, effectively save electric energy simultaneously, for the quality improving electric car charger provides guarantee.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
As shown in Figure 1, the utility model discloses a kind of energy-conservation electronic load ageing instrument, comprise power supply, inversion boosting control unit, high frequency full-bridge rectifier filter unit, low frequency full bridge rectification filtering unit, voltage doubling rectifing circuit and afterflow reactor, described power supply is connected with low frequency full bridge rectification filtering unit and voltage doubling rectifing circuit input respectively, the output of voltage doubling rectifing circuit is connected with the input of inversion boosting control unit, the output of described inversion boosting control unit is connected with high frequency full-bridge rectifier filter unit, high frequency full-bridge rectifier filter unit is connected with one end of afterflow reactor, the other end of afterflow reactor is connected with the power end of electronic load, the output of electronic load is connected with voltage doubling rectifing circuit input.The voltage transitions of the output of electronic load is about 300V direct voltage by high frequency full-bridge rectifier filter unit by inversion boosting control unit.
Wherein, power supply is the alternating current of 220V, is connected with fuse and RT thermistor between power supply and voltage doubling rectifing circuit.
Inversion boosting control unit comprises PWM generator, field effect transistor Q1, field effect transistor Q2 and high frequency transformer T2, described PWM generator exports phase-veversal switch signal and controls field effect transistor Q1 and field effect transistor Q2 conducting in turn respectively, the first former limit of field effect transistor Q1 and high frequency transformer T2 connects, field effect transistor Q2 is connected with the second former limit of high frequency transformer T2, and first secondary of high frequency transformer T2 is connected with low frequency full bridge rectification filtering unit.Wherein, inversion boosting control unit also comprises Isobarically Control loop, comprise adjustable resistance VR, Zener diode ZD1, resistance R6, resistance R2 and electric capacity C4, resistance R2 and electric capacity C4 composes in parallel the 9th pin that filter circuit is connected to PWM generator, and adjustable resistance VR, Zener diode ZD1 are connected the 9th pin of PWM generator after connecting with resistance R6.
Voltage doubling rectifing circuit comprises Industrial Frequency Transformer T1, diode D5, diode D6, electric capacity C1 and electric capacity C2, the former limit of Industrial Frequency Transformer T1 is connected with the output of fuse and the output of RT thermistor respectively, one end of the secondary of Industrial Frequency Transformer T1 is connected with the positive pole of diode D5, the negative pole of diode D6 is connected with the positive pole of diode D5, the other end of the secondary of Industrial Frequency Transformer T1 is connected with the negative pole of electric capacity C1, and the negative pole of electric capacity C1 is connected with the positive pole of electric capacity C2.Voltage doubling rectifing circuit exports the demand that high pressure meets late-class circuit.
Afterflow reactor is inductance coil, stops the change of electric current.Be that magnetic energy stores electric energy conversion.Reduce power consumption.
As shown in Figure 1, low frequency full bridge rectification filtering unit is made up of diode D1, diode D2, diode D3, diode D4, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity C12.PWM generator and pulse-duration modulation signal generator integrated package SG3524, PWM generator is enable high frequency transformer T2 mainly, and full-bridge rectifier filter unit is made up of diode D10, diode D11, diode D12, diode D13, electric capacity C9, electric capacity C10, electric capacity C11, electric capacity C12.The alternating current of 220V exports about 300V direct voltage through fuse, RT thermistor through low frequency full bridge rectification filtering unit, and the direct voltage of this 300V directly can be supplied to power supply when electronic load does aging.Wherein, voltage doubling rectifing circuit receives the direct voltage of the alternating current conversion of 220V and the voltage of electronic load output output simultaneously, and the direct voltage that voltage doubling rectifing circuit obtains is divided into three tunnels through current-limiting resistance R8:
1, the burning voltage that this voltage obtains 18V through resistance R7, voltage stabilizing didoe ZD2, electric capacity C5 provides operating voltage to SG3524;
2, this voltage provides power drives to high frequency transformer T2;
3, this voltage is constant through Isobarically Control loop is supplied to T2 driving voltage.
During work, after SG3524 powers on, the operating frequency of its pulse-width signal is determined by timing resistor R1, timing capacitor C3, export phase-veversal switch signal from the pin 11 of SG3524 and pin 14 and control field effect transistor Q1 and field effect transistor Q2 conducting in turn respectively by R4, R5, Q3, Q4, Q7, Q8, high frequency transformer T2 is in oscillatory regime, export about 300V direct voltage through high frequency full-bridge rectifier filter unit, the direct voltage of this 300V directly can be supplied to power supply when electronic load does aging.
Isobarically Control loop mainly makes electronic load export constant voltage, constant 48V voltage is exported for electronic load, electronic load exports constant 48V voltage obtains about 100V direct voltage through voltage doubling rectifing circuit, adjustment adjustable resistance VR makes its resistance diminish, when 100V voltage is through Zener diode ZD1, resistance R6, adjustable resistance VR, resistance R2, electric capacity C4 makes SG3524 the 9th pin voltage rise, SG3524 the 11st pin, the pulse duration that 14th pin exports broadens, make Q3, Q4, Q7, Q8 ON time lengthens, Q5, Q6, Q9, Q10 ON time shortens, thus make Q1, Q2 ON time lengthens, deadline shortens, flow through T2 secondary winding current to rise, the direct voltage of 100V is made to be dropped rapidly to 48V, such process just defines Isobarically Control.
Wherein, second secondary of high frequency transformer T2 is also connected with blower fan, has the use of heat radiation, and the power device of the electronic load ageing instrument preventing this energy-conservation is overheated and damage.
During use, after supposing that the charger of electric motor car accesses this energy-conservation electronic load ageing instrument, alternating current 220V exports about 300V direct voltage by low frequency full bridge rectification filtering unit and provides an operating voltage to the charger of electric motor car, export about 48V direct voltage after the charger operation of electric motor car and add this energy-conservation electronic load ageing instrument, power drives is provided to high frequency transformer T2, PWM generator exports phase-veversal switch signal and controls field effect transistor Q1 and field effect transistor Q2 conducting in turn respectively, thus 48V driving voltage is converted to about 300V direct voltage by high frequency full-bridge rectifier filter unit by high frequency transformer T2 formation self induction electromotive force, when driving voltage is low, effectively supplemented by alternating current 220V again, the work gone round and begun again like this defines whole circulation ageing process.
Electronic load is electric car charger.Energy-conservation electronic load ageing instrument is suitable for all kinds of Switching Power Supply, charger uses when doing senile experiment as electronic load for this, can be widely used in electric car charger industry.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. an energy-conservation electronic load ageing instrument, it is characterized in that: comprise power supply, inversion boosting control unit, high frequency full-bridge rectifier filter unit, low frequency full bridge rectification filtering unit, voltage doubling rectifing circuit and afterflow reactor, described power supply is connected with low frequency full bridge rectification filtering unit and voltage doubling rectifing circuit input respectively, the output of voltage doubling rectifing circuit is connected with the input of inversion boosting control unit, the output of described inversion boosting control unit is connected with high frequency full-bridge rectifier filter unit, high frequency full-bridge rectifier filter unit is connected with one end of afterflow reactor, the other end of afterflow reactor is connected with the power end of electronic load, the output of electronic load is connected with voltage doubling rectifing circuit input.
2. a kind of energy-conservation electronic load ageing instrument according to claim 1, it is characterized in that: described inversion boosting control unit comprises PWM generator, field effect transistor Q1, field effect transistor Q2 and high frequency transformer T2, described PWM generator exports phase-veversal switch signal and controls field effect transistor Q1 and field effect transistor Q2 conducting in turn respectively, the first former limit of described field effect transistor Q1 and high frequency transformer T2 connects, described field effect transistor Q2 is connected with the second former limit of high frequency transformer T2, and first secondary of high frequency transformer T2 is connected with low frequency full bridge rectification filtering unit.
3. a kind of energy-conservation electronic load ageing instrument according to claim 2, it is characterized in that: described inversion boosting control unit also comprises Isobarically Control loop, described Isobarically Control loop comprises adjustable resistance VR, Zener diode ZD1, resistance R6, resistance R2 and electric capacity C4, described resistance R2 and electric capacity C4 composes in parallel the 9th pin that filter circuit is connected to PWM generator, and described adjustable resistance VR, Zener diode ZD1 are connected the 9th pin of PWM generator after connecting with resistance R6.
4. a kind of energy-conservation electronic load ageing instrument according to claim 1, is characterized in that: described power supply is the alternating current of 220V, is connected with fuse and RT thermistor between described power supply and voltage doubling rectifing circuit.
5. a kind of energy-conservation electronic load ageing instrument according to claim 4, it is characterized in that: described voltage doubling rectifing circuit comprises Industrial Frequency Transformer T1, diode D5, diode D6, electric capacity C1 and electric capacity C2, the former limit of Industrial Frequency Transformer T1 is connected with the output of fuse and the output of RT thermistor respectively, one end of the secondary of Industrial Frequency Transformer T1 is connected with the positive pole of diode D5, the negative pole of diode D6 is connected with the positive pole of diode D5, the other end of the secondary of Industrial Frequency Transformer T1 is connected with the negative pole of electric capacity C1, the negative pole of electric capacity C1 is connected with the positive pole of electric capacity C2.
6. a kind of energy-conservation electronic load ageing instrument according to claim 1, is characterized in that: described afterflow reactor is inductance coil.
7. a kind of energy-conservation electronic load ageing instrument according to claim 1, is characterized in that: described electronic load is electric car charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833400.0U CN205039714U (en) | 2015-10-26 | 2015-10-26 | Ageing instrument of energy -conserving electronic load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833400.0U CN205039714U (en) | 2015-10-26 | 2015-10-26 | Ageing instrument of energy -conserving electronic load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039714U true CN205039714U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833400.0U Expired - Fee Related CN205039714U (en) | 2015-10-26 | 2015-10-26 | Ageing instrument of energy -conserving electronic load |
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| CN (1) | CN205039714U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646128A (en) * | 2018-04-27 | 2018-10-12 | 杭州中安电子有限公司 | Bridge heap high temperature reverse bias ageing system |
| CN110086231A (en) * | 2019-05-30 | 2019-08-02 | 深圳可立克科技股份有限公司 | Lithium battery DC-AC inversion protection circuit and energy storage device |
| CN111193424A (en) * | 2020-01-09 | 2020-05-22 | 中国电子科技集团公司第二十四研究所 | Circuit for aging direct-current passive EMI filter |
-
2015
- 2015-10-26 CN CN201520833400.0U patent/CN205039714U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646128A (en) * | 2018-04-27 | 2018-10-12 | 杭州中安电子有限公司 | Bridge heap high temperature reverse bias ageing system |
| CN110086231A (en) * | 2019-05-30 | 2019-08-02 | 深圳可立克科技股份有限公司 | Lithium battery DC-AC inversion protection circuit and energy storage device |
| CN110086231B (en) * | 2019-05-30 | 2024-02-23 | 深圳可立克科技股份有限公司 | DC-AC inversion protection circuit of lithium battery and energy storage equipment |
| CN111193424A (en) * | 2020-01-09 | 2020-05-22 | 中国电子科技集团公司第二十四研究所 | Circuit for aging direct-current passive EMI filter |
| CN111193424B (en) * | 2020-01-09 | 2020-12-22 | 中国电子科技集团公司第二十四研究所 | Circuit for aging direct-current passive EMI filter |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20191026 |
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| CF01 | Termination of patent right due to non-payment of annual fee |