CN101865980A - Method for aging of low-voltage, high-current and non-isolated DC-DC power supply - Google Patents
Method for aging of low-voltage, high-current and non-isolated DC-DC power supply Download PDFInfo
- Publication number
- CN101865980A CN101865980A CN 201010196914 CN201010196914A CN101865980A CN 101865980 A CN101865980 A CN 101865980A CN 201010196914 CN201010196914 CN 201010196914 CN 201010196914 A CN201010196914 A CN 201010196914A CN 101865980 A CN101865980 A CN 101865980A
- Authority
- CN
- China
- Prior art keywords
- power supply
- voltage
- aging
- output
- current
- 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.)
- Pending
Links
Images
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention discloses a method for aging of a low-voltage, high-current and non-isolated DC-DC power supply. In the method, the output end of an AC-DC direct-current power supply is provided with a front-end voltage conversion unit which is used for converting the DC voltage output by the AC-DC direct-current power supply into a plurality of output voltages electrically isolated from the DC voltage output by the AC-DC direct-current power supply, the output voltages are respectively connected with the input ends of a plurality of aging DC-DC power supplies, the voltage obtained through serial connection of the output voltages of the aging DC-DC power supplies is converted into a DC voltage output identical to the DC voltage output of the AC-DC direct-current power supply through an energy recovery unit and is then connected to the input end of the front-end voltage conversion unit. Due to the combination of the front-end voltage conversion unit, the aging power supplies and the energy recovery unit, the invention realizes the high-efficiency aging test for the non-isolated DC-DC power supply with a low output voltage and a high output current, and can recycle more than 80 percent of the output power of the aging power supplies, thereby achieving good energy-saving effect, and filling the gap in the industry.
Description
Technical field:
The present invention relates to the energy-saving electric product technical field, especially relate to energy-conservation aging testing apparatus at the non-isolated DC-DC power supply of the big electric current of output LOW voltage.
Background technology:
Traditional switch power supply aging method of testing is to utilize high-power resistance to carry out burn-in test as load, and waste of energy is huge.Occurred some patented technology documents in recent years, proposed the energy-saving electric load is replaced the ohmic load of power consumption, when reaching band year burn-in test purpose, electric energy has been fed back to by the input end of aging Switching Power Supply, with saves energy.
Chinese patent CN 200510062317.9 discloses a kind of power source aging system, see shown in Figure 1: this ageing system uses the AC-DC dc power supply to give all by aging DC-DC power supply power supply, each is received corresponding energy-saving electric load by the output of aging power supply, and the output of energy-saving electric load feeds back to by the input end of aging power supply.It is good that this aging method is used on the general DC-DC power supply energy-saving effect, but there is following shortcoming in the DC-DC power supply that is used for the output of burn-in test low-voltage, high-current: (1) aging testing system generally is divided into product zone and load region, product zone is placed by aging power supply, load region is placed the energy-saving electric load, be convenient to like this temperature of product zone and load region is independently controlled, so the product output terminal need connect by the connector of switching usefulness to the electronic load input end, and need one section long lead.If be output as 0.8V/100A by aging power supply, the pressure drop on connector and the lead will reach 0.3V, then the efficient of losing on connector and the lead will reach 0.3/0.8=37.5%.(2) input voltage of energy-saving electric load is very low, input current is very big, the efficient of such energy-saving electric load often has only about 50%, and other energy of 50% all will consume in the inside of energy-saving electric load, and this has caused very large difficulty for the thermal design of energy-saving electric load.(3) consider circuit efficiency losses and the loss of energy-saving electric load own, the efficient of whole energy-conservation aging testing system has only about 31%.(4) each is all needed an energy-saving electric load by aging power supply, and cost is higher.This method is with respect to the cost of buying the energy-saving electric load, and the electricity of saving seldom causes the equipment payback period very long, often needs nearly 10 years could cost-recovering.
Chinese patent CN 200720179067.1 discloses the energy-conservation aging equipment of a kind of Switching Power Supply, mentioned in the literary composition and received the energy-saving electric load after a plurality of output terminals by aging power supplys are together in series, like this, a plurality of by energy-saving electric load of aging power sharing, efficient height, cost are low.But, but can't realize in its DC-DC power source aging test macro that will be applied to the non-electrical isolation of input and output of mentioning by the method that aging power supply output is connected.Reason is shown in Figure 2, because by aging power supply is non-isolation, promptly connected together by the input "-" of aging power supply and output "-", and each is to receive "-" of AC-DC dc power supply end jointly by the input "-" of aging power supply, if will be together in series by aging power supply 1 and 2, promptly be connected, then be equivalent to link to each other, promptly by the output short-circuit of aging power supply 2 with being held with "-" by "+" of aging power supply 2 end by "-" end of "+" of aging power supply 2 end and the power supply 1 that worn out.
In sum, the aging method of mentioning in the existing patent documentation also is not suitable for the aging of low-voltage, high-current and non-isolated DC-DC power supply, and this power supply, be used in a large number in communication power supply system and the digital processing server system such as VRM (Voltage Regulator Module), output is very big, and the energy-conservation aging testing apparatus that needs a kind of high efficiency, low cost urgently is to solve the problem that power consumption is big, thermal value is big in the classic method ageing process.，
Summary of the invention:
Purpose of the present invention provides a kind of energy-conservation method for aging of low-voltage, high-current and non-isolated DC-DC power supply with regard to being the weak point that exists at prior art, and it is the burn-in test low-voltage, high-current and non-isolated DC-DC power supply efficiently.
For achieving the above object, method for aging of low-voltage, high-current and non-isolated DC-DC power supply of the present invention is that the output terminal at the AC-DC dc power supply is provided with the front end voltage conversion unit, the DC voltage of AC-DC dc power supply output is converted to multichannel output voltage with its electrical isolation, the multichannel output voltage is received a plurality of by the input end of aging DC-DC power supply respectively, to be transformed to through energy recovery unit by the voltage that obtains after the series connection of the output voltage of aging DC-DC power supply and be transformed into the DC voltage output identical, and be connected to the input end of front end voltage conversion unit with the AC-DC dc power supply.
As preferably, the DC voltage of described AC-DC dc power supply output is 48V.
Beneficial effect of the present invention is: it is by the combination of front end voltage conversion unit, worn out power supply and energy recovery unit, realized high-level efficiency burn-in test to the non-isolated DC-DC power supply of low output voltage, big output current, can make by aging output power of power supply obtain more than 80% recycle, energy-saving effect is very good, has filled up the industry blank.
Description of drawings:
The present invention is described further below in conjunction with accompanying drawing:
Fig. 1 is the schematic diagram of one of prior art;
Fig. 2 is two a schematic diagram of prior art;
Fig. 3 is a schematic diagram of the present invention;
Fig. 4 is front end voltage conversion unit circuit theory diagrams of the present invention;
Fig. 5 is energy recovery unit circuit theory diagrams of the present invention.
Embodiment:
See shown in Figure 3: method for aging of low-voltage, high-current and non-isolated DC-DC power supply of the present invention is that the output terminal at the AC-DC dc power supply is provided with the front end voltage conversion unit, the DC voltage of the 48V of AC-DC dc power supply output is converted to multichannel output voltage with its electrical isolation, the multichannel output voltage is received a plurality of by the input end of aging DC-DC power supply respectively, to be transformed to 48V output through energy recovery unit by the voltage that obtains after the series connection of the output voltage of aging DC-DC power supply, and be connected to the input end of front end voltage conversion unit.
See shown in Figure 4: the front end voltage conversion unit is to export with the multi-channel DC 12V voltage of its electrical isolation with the direct current 48V voltage transitions of AC-DC dc power supply output.This circuit adopts the double-end normal shock topology, gathers output voltage signal at output terminal, delivers to the PWM controller, the PWM controller is controlled by negative feedback, regulate the width of its output PWM driving pulse, thereby control the time of the turn-on and turn-off of two switching tube Q1, Q2, regulated output voltage.Output terminal diode D11, D21 ... Dn1 plays the output rectified action, D12, D22 ... Dn2 plays the afterflow effect.L1, L2 ... the Ln store electrical energy, simultaneously with C1, C2 ... Cn forms the LC filtering circuit, can make output voltage ripple littler like this.Because each road output of front end voltage conversion unit all is electrical isolation, has guaranteed by the input end of aging power supply not altogether, promptly guaranteed respectively can be together in series and can not form short circuit by the output of aging power supply.
See shown in Figure 5: the circuit of energy recovery unit is a coupling inductance BOOST booster circuit.Its (n*0.8) V boost in voltage after with the series connection of tested power supply is to Vout, and the input end that is connected to the front end voltage conversion unit is to realize the recycling of energy.CS is a current sensor, it can be a current sense resistor, also can be other current detecting device, obtain reflecting the If of input current (output current of the tested power supply just) size of energy recovery unit, after comparing, itself and electric current specified rate IRef send into the PWM controller, obtain pwm control signal, insert 1 pin of Q1.Can control tested electric power outputting current size and instruction size of current unanimity in this way, promptly can be by the tested power supply output load current of software control.
The capacity usage ratio of front end voltage conversion unit is 90%, the capacity usage ratio of energy recovery unit is 90%, the energy utilization rate of whole like this aging equipment is 90%*90%=81%, that is to say, has only 81% of input aging equipment energy to be utilized again again.
Because each road output of front end voltage conversion unit all is electrical isolation, guaranteed not altogether by the input end of aging power supply, promptly guaranteed respectively can be together in series and can not form short circuit by the output of aging power supply, realize the recycling of energy in the DC-DC power module ageing process like this, thereby reached the purpose of energy-conservation burn-in test efficiently.
The above only is preferred embodiment of the present invention, does not therefore limit protection scope of the present invention, and every equalization of doing according to the utility model changes with modifying and all belongs in the claim that the present invention contains.
Claims (2)
1. method for aging of low-voltage, high-current and non-isolated DC-DC power supply, it is characterized in that: it is that output terminal at the AC-DC dc power supply is provided with the front end voltage conversion unit, the DC voltage of AC-DC dc power supply output is converted to multichannel output voltage with its electrical isolation, the multichannel output voltage is received a plurality of by the input end of aging DC-DC power supply respectively, to be transformed to through energy recovery unit by the voltage that obtains after the series connection of the output voltage of aging DC-DC power supply and be transformed into the DC voltage output identical, and be connected to the input end of front end voltage conversion unit with the AC-DC dc power supply.
2. a kind of method for aging of low-voltage, high-current and non-isolated DC-DC power supply according to claim 1 is characterized in that: the DC voltage of described AC-DC dc power supply output is 48V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010196914 CN101865980A (en) | 2010-06-10 | 2010-06-10 | Method for aging of low-voltage, high-current and non-isolated DC-DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010196914 CN101865980A (en) | 2010-06-10 | 2010-06-10 | Method for aging of low-voltage, high-current and non-isolated DC-DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101865980A true CN101865980A (en) | 2010-10-20 |
Family
ID=42957781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010196914 Pending CN101865980A (en) | 2010-06-10 | 2010-06-10 | Method for aging of low-voltage, high-current and non-isolated DC-DC power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865980A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891523A (en) * | 2012-10-16 | 2013-01-23 | 江苏玖宇实业有限公司 | Aging control method and system for electrical energy self-circulation type high-power charger |
| CN103178523A (en) * | 2013-04-16 | 2013-06-26 | 四川英杰电气股份有限公司 | Large-current power supply loop |
| CN104038065A (en) * | 2013-03-05 | 2014-09-10 | 固纬电子实业股份有限公司 | Power conversion system with power supply and electronic load |
| CN104111715A (en) * | 2014-08-13 | 2014-10-22 | 浪潮电子信息产业股份有限公司 | Method for designing server board-level power supply with input being 48V |
| CN104569680A (en) * | 2015-01-06 | 2015-04-29 | 工业和信息化部电子第五研究所 | Testing device and method for DC/DC converter |
| CN106093803A (en) * | 2016-06-07 | 2016-11-09 | 东莞市冠佳电子设备有限公司 | Switch power supply aging test circuit |
| CN104229406B (en) * | 2014-08-26 | 2017-04-12 | 苏州市职业大学 | Energy-saving aging testing and warehouse logistics integral system for switching power supply |
| CN106911167A (en) * | 2017-04-28 | 2017-06-30 | 易事特集团股份有限公司 | The unidirectional active equalization circuit of energy storage |
| CN107797078A (en) * | 2016-08-30 | 2018-03-13 | 中兴通讯股份有限公司 | A kind of energy feedback type power source aging method and its device |
| CN110224601A (en) * | 2019-07-12 | 2019-09-10 | 哈尔滨理工大学 | A kind of high-gain Boost and its working method based on three winding coupling inductance |
| CN110907846A (en) * | 2018-08-28 | 2020-03-24 | 比亚迪股份有限公司 | Test system and test method of DC/DC conversion module |
| CN113054647A (en) * | 2021-05-06 | 2021-06-29 | 杭州中安电子有限公司 | Energy recovery device of DC/DC module |
| CN115032479A (en) * | 2022-05-09 | 2022-09-09 | 北京航天发射技术研究所 | Energy recycling system and method for electronic control single machine aging test |
| CN118275932A (en) * | 2024-06-04 | 2024-07-02 | 青岛元通电子有限公司 | Operation quality detection system suitable for ultralow noise power supply |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551446A (en) * | 2009-05-11 | 2009-10-07 | 刘晓刚 | Energy feedback power source aging system |
-
2010
- 2010-06-10 CN CN 201010196914 patent/CN101865980A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551446A (en) * | 2009-05-11 | 2009-10-07 | 刘晓刚 | Energy feedback power source aging system |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891523A (en) * | 2012-10-16 | 2013-01-23 | 江苏玖宇实业有限公司 | Aging control method and system for electrical energy self-circulation type high-power charger |
| CN102891523B (en) * | 2012-10-16 | 2014-09-24 | 江苏玖宇实业有限公司 | Aging control method and system for electrical energy self-circulation type high-power charger |
| CN104038065A (en) * | 2013-03-05 | 2014-09-10 | 固纬电子实业股份有限公司 | Power conversion system with power supply and electronic load |
| CN104038065B (en) * | 2013-03-05 | 2017-05-10 | 固纬电子实业股份有限公司 | power conversion system with power supply and electronic load |
| CN103178523A (en) * | 2013-04-16 | 2013-06-26 | 四川英杰电气股份有限公司 | Large-current power supply loop |
| CN104111715A (en) * | 2014-08-13 | 2014-10-22 | 浪潮电子信息产业股份有限公司 | Method for designing server board-level power supply with input being 48V |
| CN104229406B (en) * | 2014-08-26 | 2017-04-12 | 苏州市职业大学 | Energy-saving aging testing and warehouse logistics integral system for switching power supply |
| CN104569680A (en) * | 2015-01-06 | 2015-04-29 | 工业和信息化部电子第五研究所 | Testing device and method for DC/DC converter |
| CN106093803A (en) * | 2016-06-07 | 2016-11-09 | 东莞市冠佳电子设备有限公司 | Switch power supply aging test circuit |
| CN106093803B (en) * | 2016-06-07 | 2019-06-11 | 东莞市冠佳电子设备有限公司 | Switch power supply aging tests circuit |
| CN107797078A (en) * | 2016-08-30 | 2018-03-13 | 中兴通讯股份有限公司 | A kind of energy feedback type power source aging method and its device |
| CN106911167A (en) * | 2017-04-28 | 2017-06-30 | 易事特集团股份有限公司 | The unidirectional active equalization circuit of energy storage |
| CN106911167B (en) * | 2017-04-28 | 2024-01-30 | 易事特集团股份有限公司 | Unidirectional active equalization circuit for energy storage |
| CN110907846A (en) * | 2018-08-28 | 2020-03-24 | 比亚迪股份有限公司 | Test system and test method of DC/DC conversion module |
| CN110907846B (en) * | 2018-08-28 | 2021-12-07 | 比亚迪股份有限公司 | Test system and test method of DC/DC conversion module |
| CN110224601A (en) * | 2019-07-12 | 2019-09-10 | 哈尔滨理工大学 | A kind of high-gain Boost and its working method based on three winding coupling inductance |
| CN110224601B (en) * | 2019-07-12 | 2021-03-09 | 哈尔滨理工大学 | High-gain Boost converter based on three-winding coupling inductor and working method thereof |
| CN113054647A (en) * | 2021-05-06 | 2021-06-29 | 杭州中安电子有限公司 | Energy recovery device of DC/DC module |
| CN113054647B (en) * | 2021-05-06 | 2022-08-05 | 杭州中安电子有限公司 | Energy recovery device of DC/DC module |
| CN115032479A (en) * | 2022-05-09 | 2022-09-09 | 北京航天发射技术研究所 | Energy recycling system and method for electronic control single machine aging test |
| CN115032479B (en) * | 2022-05-09 | 2024-10-01 | 北京航天发射技术研究所 | Energy recycling system and method for electric control single machine aging test |
| CN118275932A (en) * | 2024-06-04 | 2024-07-02 | 青岛元通电子有限公司 | Operation quality detection system suitable for ultralow noise power supply |
| CN118275932B (en) * | 2024-06-04 | 2024-08-20 | 青岛元通电子有限公司 | Operation quality detection system suitable for ultralow noise power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101865980A (en) | Method for aging of low-voltage, high-current and non-isolated DC-DC power supply | |
| CN102364859B (en) | Switching power supply control device and flyback switching power supply with same | |
| CN201491339U (en) | LED driving circuit | |
| CN202178046U (en) | Backlight drive circuit and television set | |
| CN106357108B (en) | DC boosting high-voltage output circuit and direct current boosting power | |
| CN203233322U (en) | Multiplexed output fly-back switching power supply | |
| CN203645858U (en) | Step-down control chip, step-down LED drive circuit and display screen | |
| CN201860261U (en) | Boost circuit | |
| CN205304588U (en) | Multi -path output power supply | |
| CN102347688A (en) | DCDC (direct current/direct current) power supply converting and controlling device and switching power supply | |
| CN203691245U (en) | Synchronous rectifier controller used for flyback converter | |
| CN101777846B (en) | System and method for controlling switch power supply | |
| CN203136240U (en) | Wide-range constant-current LED power supply VCC drive circuit | |
| CN201893979U (en) | High-power efficient constant-current light-emitting diode (LED) driver | |
| CN204721217U (en) | Switching power circuit and electronic equipment | |
| CN208352968U (en) | A kind of PFC overvoltage crowbar and device | |
| CN203767779U (en) | Integrated switching power supply device for elevator control system | |
| CN203691365U (en) | Self-powered circuit of power semiconductor switch driving circuit | |
| CN202979407U (en) | LED uninterrupted lighting device | |
| CN103220837B (en) | A kind of LED continuous illumination device | |
| CN202663314U (en) | AC (alternating current)-DC (direct current) switching power supply converter | |
| CN204559393U (en) | A kind of Switching Power Supply control chip and inverse-excitation type AC-DC converter | |
| CN103337971A (en) | Power module circuit for electric vehicle charger controller | |
| CN103078544A (en) | Direct current/alternating current converting system | |
| CN201976017U (en) | PFC self-supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Lian Ping Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101020 |