CN202550901U - High-power alternating current-direct current converter - Google Patents
High-power alternating current-direct current converter Download PDFInfo
- Publication number
- CN202550901U CN202550901U CN2012200703728U CN201220070372U CN202550901U CN 202550901 U CN202550901 U CN 202550901U CN 2012200703728 U CN2012200703728 U CN 2012200703728U CN 201220070372 U CN201220070372 U CN 201220070372U CN 202550901 U CN202550901 U CN 202550901U
- Authority
- CN
- China
- Prior art keywords
- chip
- links
- transformers
- source
- power
- 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 - Lifetime
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model discloses a high-power alternating current-direct current converter, which comprises an alternating current 220V power input end, a rectification circuit connected with the alternating current 220V power input end, a filter circuit connected with the rectification circuit, a full bridge circuit connected with the filter circuit, two EE55 transformers connected with the full bridge circuit and a rectification diode connected with the EE55 transformers, wherein the input ends of the EE55 transformers are connected in series, and the output ends of the EE55 transformers are connected in parallel. The input ends of the EE55 transformers are connected in series, and the output ends of the EE55 transformers are connected in parallel, so that the problems of unbalance of the output ends and even incapability of obtaining ideal output power due to the inconsistency of the two transformers when the input and output ends of the transformers are connected in parallel respectively in the prior art are solved.
Description
Technical field
The utility model belongs to vehicle-mounted switch power supply equipment field, relates in particular to a kind of high power AC-direct current transducer.
Background technology
The vehicle of a lot of public affair classes need go out to carry out the work to execute the task, as: movable police station, Voluntary Blood Donation Vehicle, ambulance etc.This type car has characteristics such as functional diversities, mobile strong, all weather operations.Vehicle need move to another place from the three unities; And rest on certain place; A lot of function devices are direct current 12V systems on the car, depend merely on storage battery and are difficult to satisfy high-power, long demand, so need a cover large power, electrically origin system; After system's conversion, obtaining low pressure 12V direct current through external 220V alternating current (civil power or generator for electricity generation), is the 12V power devices constantly.
At present general Switching Power Supply product power output is merely 100-300W, and electric current generally is no more than 20A.In order to realize powerful requirement, for example power output reach 1000W, more than the electric current 80A, prior art generally has two kinds of methods: a kind of is to adopt single transformer; This method is owing to the needs of the turn ratio and output current, and the magnetic core that transformer uses can be very big, for output voltage 12V; The power supply of electric current 80A; At least will use the magnetic core of specification as EE110, the method can cause final product very heavy because EE110 volume of transformer, the weight used are all very big; Another kind method is based on the shortcoming that overcomes said method and adopts two EE55 transformers; Its input, output are parallel connection; Cumulative volume is merely the half the of an EE110 transformer, practiced thrift institute and taken up space, but the method is because input adopts the mode of parallel connection; Can cause output uneven because of the inconsistency of two transformers itself, and can not get desirable power output.
The utility model content
In view of this; The purpose of the utility model is to provide a kind of high power AC-direct current transducer; To solve prior art adopts parallel connection owing to two EE55 transformer inputs modes; Meeting causes output uneven because of both inconsistencies of itself, and can not get the problem of desirable power output.
For realizing above-mentioned purpose, the utility model embodiment provides following technical scheme:
A kind of high power AC-direct current transducer comprises:
Alternating current 220V power input, the rectification circuit that links to each other with said alternating current 220V power input, the filter circuit that links to each other with said rectification circuit, the full-bridge circuit that links to each other with said filter circuit, two EE55 transformers linking to each other with said full-bridge circuit with said two rectifier diodes that the EE55 transformer links to each other;
Said two EE55 transformers take the mode of input series connection, output parallel connection to connect.
Preferably, said full-bridge circuit comprises four triodes.
Preferably, said transducer also comprises 2 IR2110 chips that respectively base stage of per two said triodes of being in the same side driven, wherein:
The triode that is in the upper end in two said triodes of the HO stitch of said IR2110 chip and said driven the same side links to each other, and the LO stitch links to each other with the triode that is in the lower end.
Preferably, said transducer also comprises the single chip machine controlling circuit that links to each other with said IR2110 chip, be used for the Enable Pin of the said IR2110 chip of delayed start-up.
Preferably, said single chip machine controlling circuit comprises:
Single-chip microcomputer;
Link to each other with the Enable Pin of said IR2110 chip, being used for the direct current supply voltage transitions is first source of stable pressure of the 5V operating voltage of said IR2110 chip;
Link to each other with first source of stable pressure with said single-chip microcomputer respectively, be used to control said first source of stable pressure whether to first optocoupler of the Enable Pin SD of said IR2110 chip stitch output 5V voltage;
Link to each other with the power end of said IR2110 chip, being used for the direct current supply voltage transitions is second source of stable pressure of the 5V operating voltage of said IR2110 chip;
Link to each other with second source of stable pressure with said single-chip microcomputer respectively, be used to control said second source of stable pressure whether to second optocoupler of the power end Vd of said IR2110 chip stitch output 5V voltage.
Preferably, said single-chip microcomputer is specially 51 single-chip microcomputers.
Preferably, said transducer also comprises with said IR2110 chip and linking to each other, is used for the RC circuit of the Enable Pin of the said IR2110 chip of delayed start-up.
Because high power AC-direct current transducer that the utility model embodiment provides adopts input series connection, output parallel connection to the connected mode of two EE55 transformers; Thereby when having avoided prior art input and output all to adopt parallel way, can cause the output imbalance, consequently can not get the problem of desirable power output because of the inconsistency of two transformers itself.Realized guaranteeing to obtain the purpose of stable power output under the less prerequisite of prior art products volume.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the way circuit figure of high power AC-direct current transducer of providing of the utility model embodiment;
Fig. 2 is the transfer process figures of 2 EE55 transformers providing of the utility model embodiment to electric current;
Fig. 3 is that the employing single-chip microcomputer that the utility model embodiment provides is made the control circuit that time-delay is controlled to the IR2110 chip.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
For this reason, the utility model embodiment provides a kind of high power AC-direct current transducer, and Fig. 1 promptly shows the corresponding way circuit figure of above-mentioned transducer, and it can comprise:
Alternating current 220V power input 101, the rectification circuit 102 that links to each other with alternating current 220V power input 101, the filter circuit 103 that links to each other with rectification circuit 102, the full-bridge circuit 104 that links to each other with filter circuit 103, two EE55 transformers 105 that link to each other with full-bridge circuit 104 and the rectifier diode 106 that links to each other with two EE55 transformers 105;
Two EE55 transformers 105 take the mode of input series connection, output parallel connection to connect.
It is thus clear that; Because high power AC-direct current transducer that the utility model embodiment provides adopts input series connection, output parallel connection to the connected mode of two EE55 transformers; Thereby when having avoided prior art input and output all to adopt parallel way, can cause the output imbalance, consequently can not get the problem of desirable power output because of the inconsistency of two transformers itself.Realized guaranteeing to obtain the purpose of stable power output under the less prerequisite of prior art products volume.
Concrete, full-bridge circuit 104 can comprise four triodes.
In other embodiment of the utility model, can adopt the chip for driving of 2 IR2110 chips as above-mentioned four triodes, above-mentioned every IR2110 chip drives the base stage of two triodes of the same side respectively, wherein:
The triode that is in the upper end in two triodes of the HO stitch of above-mentioned IR2110 chip and above-mentioned driven the same side links to each other, and the LO stitch links to each other with the triode that is in the lower end.
The operation principle of the disclosed high power AC-direct current transducer of present embodiment is:
The alternating current of 220V is held input by a end, the b of alternating current 220V power input 101; After carrying out rectification, filtering respectively via rectification circuit 102, the filter circuit 103 of centre; Obtain the direct current of high pressure; Be transformed into the alternating current of high frequency again through the full-bridge circuit of forming by above-mentioned 4 triodes 104; And flow through the series connection input of above-mentioned two EE55 transformers 105, and make the signal of above-mentioned alternating current be coupled to the secondary of above-mentioned EE55 transformer 105, obtain the 12V direct current through rectifier diode 106 then.Because the parallel connection of the output of two EE55 transformers 105, load can obtain 2 times electric current, and this transducer power output can reach 1000W.
See also Fig. 2, the EE55 transformer of above-mentioned two series connection to the concrete transfer process of electric current is: when the input electric current of above-mentioned EE55 transformer along i
InWhen direction flowed, wherein an output end current was i
1, via the negative pole of getting back to above-mentioned transformer behind the load R, another output end current is i
3, same via the negative pole of getting back to above-mentioned transformer behind the load R, like this, be i through the electric current of overload R
1+ i
3, same, when input current was reverse, wherein an output end current was i
2, via the negative pole of getting back to above-mentioned transformer behind the load R, another output end current is i
4, also via the negative pole of getting back to above-mentioned transformer behind the load R, load this moment R obtains i
2+ i
4Electric current.
The condition of 2 IR2110 chip operate as normal of above-mentioned chip for driving as four full bridge power triodes is: it " is enabled " to hold direct ground connection, all is low level all the time.And above-mentioned IR2110 chip is before stable operating voltage, and there is some uncertainty in itself, thereby makes and be easy to generate straight-throughly at the driven pliotron of powered on moment, and the probability that burns out is very big.
In other embodiment of the utility model,, can adopt common single-chip microcomputer for addressing the above problem; Like 51 single-chip microcomputers, above-mentioned IR2110 chip is done " enabling " time-delay control that powers on, promptly at the above-mentioned IR2110 chip of powered on moment elder generation no power; And give high level of " enabling " end of this chip, the above-mentioned IR2110 chip of powered on moment " enabling " end is not for low like this; After treating that chip operating voltage is stable, hold just for above-mentioned IR2110 chip " enabling " and be changed to low level, let its operate as normal; Avoiding IR2110 in the process that adds work voltage, the situation that two outputs are high level simultaneously takes place.
Fig. 3 promptly shows the single chip machine controlling circuit of above-mentioned IR2110 being done time-delay control, and it can comprise:
Single-chip microcomputer 301;
Link to each other with the Enable Pin SD of above-mentioned IR2110 chip, being used for the direct current supply voltage transitions is first source of stable pressure 302 of the 5V operating voltage of above-mentioned IR2110 chip;
Link to each other with first source of stable pressure 302 with single-chip microcomputer 301 respectively, be used to control first source of stable pressure 302 whether to first optocoupler 303 of the Enable Pin SD of above-mentioned IR2110 chip stitch output 5V voltage;
Link to each other with the power end of above-mentioned IR2110 chip, being used for the direct current supply voltage transitions is second source of stable pressure 304 of the 5V operating voltage of above-mentioned IR2110 chip;
Link to each other with second source of stable pressure 304 with single-chip microcomputer 301 respectively, be used to control second source of stable pressure 304 whether to second optocoupler 305 of the power end Vd of above-mentioned IR2110 chip stitch output 5V voltage.
The concrete operation principle of above-mentioned control circuit is: when powering on; Single-chip microcomputer 301 controls second optocoupler 305 pins second source of stable pressure 304 makes it to IR2110 operating voltage is not provided; First optocoupler 303 of single-chip microcomputer 301 controls simultaneously makes it open first source of stable pressure 302; Let first source of stable pressure 302 provide+the 5V operating voltage, promptly force the Enable Pin of above-mentioned IR2110 drawn to be high level, above-mentioned IR2110 lock output this moment to IR2110 " enabling " end SD stitch; Can not drive above-mentioned full-bridge circuit 104, thereby can avoid above-mentioned four full bridge power triodes to burn out because of what above-mentioned IR2110 misoperation caused; After the time-delay that powers on; Single-chip microcomputer 301 controls second optocoupler 305 makes it open second source of stable pressure 304; Then second source of stable pressure 304 provides+the 5V operating voltage to IR2110, and is last, and single-chip microcomputer 301 controls first optocoupler 303 makes it turn-off first source of stable pressure 302; Making " enabling " end SD stitch of IR2110 is low level, thereby satisfies the condition of above-mentioned IR2110 operate as normal.
In other embodiment of the utility model; Above-mentioned time-delay control for chip for driving (IR2110 chip) can also realize through simple RC circuit, promptly uses the RC circuit to do the high-low level time-delay at " enabling " end of IR2110, but because the existence of capacitance resistance ware parameter error; The delay time of above-mentioned RC circuit has than large deviation; Different in size, be difficult to be guaranteed, still possibly make the output of above-mentioned IR2110 have randomness.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a high power AC-direct current transducer is characterized in that, comprising:
Alternating current 220V power input, the rectification circuit that links to each other with said alternating current 220V power input, the filter circuit that links to each other with said rectification circuit, the full-bridge circuit that links to each other with said filter circuit, two EE55 transformers linking to each other with said full-bridge circuit with said two rectifier diodes that the EE55 transformer links to each other;
Said two EE55 transformers take the mode of input series connection, output parallel connection to connect.
2. transducer according to claim 1 is characterized in that, said full-bridge circuit comprises four triodes.
3. transducer according to claim 2 is characterized in that, also comprises 2 IR2110 chips that respectively base stage of per two said triodes of being in the same side driven, wherein:
The triode that is in the upper end in two said triodes of the HO stitch of said IR2110 chip and said driven the same side links to each other, and the LO stitch links to each other with the triode that is in the lower end.
4. transducer according to claim 3 is characterized in that, also comprises the single chip machine controlling circuit that links to each other with said IR2110 chip, be used for the Enable Pin of the said IR2110 chip of delayed start-up.
5. transducer according to claim 4 is characterized in that, said single chip machine controlling circuit comprises:
Single-chip microcomputer;
Link to each other with the Enable Pin of said IR2110 chip, being used for the direct current supply voltage transitions is first source of stable pressure of the 5V operating voltage of said IR2110 chip;
Link to each other with first source of stable pressure with said single-chip microcomputer respectively, be used to control said first source of stable pressure whether to first optocoupler of the Enable Pin SD of said IR2110 chip stitch output 5V voltage;
Link to each other with the power end of said IR2110 chip, being used for the direct current supply voltage transitions is second source of stable pressure of the 5V operating voltage of said IR2110 chip;
Link to each other with second source of stable pressure with said single-chip microcomputer respectively, be used to control said second source of stable pressure whether to second optocoupler of the power end Vd of said IR2110 chip stitch output 5V voltage.
6. transducer according to claim 5 is characterized in that said single-chip microcomputer is specially 51 single-chip microcomputers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200703728U CN202550901U (en) | 2012-02-29 | 2012-02-29 | High-power alternating current-direct current converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200703728U CN202550901U (en) | 2012-02-29 | 2012-02-29 | High-power alternating current-direct current converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550901U true CN202550901U (en) | 2012-11-21 |
Family
ID=47171464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200703728U Expired - Lifetime CN202550901U (en) | 2012-02-29 | 2012-02-29 | High-power alternating current-direct current converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391748A (en) * | 2018-04-12 | 2019-10-29 | 广州迈斯宝新能源科技有限公司 | A kind of single channel dual transformer resonance DC converter |
| CN115714547A (en) * | 2023-01-09 | 2023-02-24 | 四川大学 | Method for balancing voltage of cascade PWM rectifier based on consistency control |
-
2012
- 2012-02-29 CN CN2012200703728U patent/CN202550901U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391748A (en) * | 2018-04-12 | 2019-10-29 | 广州迈斯宝新能源科技有限公司 | A kind of single channel dual transformer resonance DC converter |
| CN115714547A (en) * | 2023-01-09 | 2023-02-24 | 四川大学 | Method for balancing voltage of cascade PWM rectifier based on consistency control |
| CN115714547B (en) * | 2023-01-09 | 2023-04-14 | 四川大学 | Method for balancing voltage of cascaded PWM rectifier based on consistency control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202218051U (en) | Intelligent charger | |
| CN105305831B (en) | A kind of bridge converter one-channel signal gate drive circuit of use isolating transformer | |
| CN101789690A (en) | UPS preceding stage electric volt increase station | |
| CN106716775A (en) | Uninterruptible power supply system with precharge converter | |
| CN104362773B (en) | wireless electric energy transmission device | |
| CN102611287A (en) | Method for realizing full-bridge ZVS (Zero Voltage Switch) and ZCS (Zero Current Switch) drive and circuit thereof | |
| CN103178734A (en) | Photovoltaic inverter | |
| CN202550901U (en) | High-power alternating current-direct current converter | |
| CN202172363U (en) | Full bridge isolated DC converter capable of discharging to front end high voltage bus | |
| CN203326635U (en) | Solar power supply control device | |
| CN104426410A (en) | Novel dual-mode bidirectional converter device | |
| CN106208783A (en) | Novel Soft Switching commutation system | |
| CN205647286U (en) | Sinusoidal wave invertion power supply | |
| CN202309559U (en) | Photovoltaic grid-connected inverter device | |
| CN104467011A (en) | Schedulable dual-mode inverter and control method of schedulable dual-mode inverter | |
| CN204333973U (en) | A kind of schedulable formula bimodulus inverter | |
| CN203457068U (en) | Novel dual-mode bidirectional converter | |
| CN207134829U (en) | A kind of electric power management circuit of Big Dipper portable device RDSS functional modules | |
| CN203135743U (en) | Hybrid DCAC current transformer | |
| CN202602356U (en) | A power supply switching device with double DC inputs | |
| CN208299815U (en) | A kind of network probe equipment with dual power supply input and power-off protection | |
| CN208028654U (en) | Based on green intelligent garden illumination management system | |
| CN208063045U (en) | A kind of novel quasi- sources Z DC-DC converter | |
| CN207218528U (en) | A kind of DC/DC converters of restructural | |
| CN205121896U (en) | Solar energy wireless traffic signal system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGXI PROVINCE AUTOMOBILE GROUP CO., LTD. Free format text: FORMER NAME: WULING AUTOMOBILE CO., LTD., LIUZHOU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Patentee after: Guangxi company limited of automobile group Address before: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Patentee before: Liuzhou Wuling Motors Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |