CN204118775U - A kind of 12V/24V Electronic Control battery charger - Google Patents
A kind of 12V/24V Electronic Control battery charger Download PDFInfo
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- CN204118775U CN204118775U CN201420456139.2U CN201420456139U CN204118775U CN 204118775 U CN204118775 U CN 204118775U CN 201420456139 U CN201420456139 U CN 201420456139U CN 204118775 U CN204118775 U CN 204118775U
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Abstract
The utility model is about a kind of 12V/24V Electronic Control battery charger, comprise the shell of charger and be located at each parts of the formation charger in this shell body, the utility model charger design is the internal structure of single circuit plate, and main parts size comprises: chassis backplane, casing enclosing cover, ammeter, charging current regulator potentiometer, containing power supply, overheated, reverse polarity connection indicator light, circuit board assemblies, power supply line, two sub-lines of storage battery bottle clip etc.Described charger, to the storage battery of 12V, its charging current can regulate continuously between 1 ~ 20A; To the storage battery of 24V, its charging current can regulate continuously between 1 ~ 15A, and charger has three kinds of charge modes, is respectively constant current, constant voltage, floating charge pattern.Utilize this charger, automatic charging can be carried out to the storage battery of Multiple Type and specification, and have overheated, when battery pole back connection defencive function; The utility model not only volume is little, lightweight, and carries very convenient.
Description
Technical field
The utility model relates to a kind of electronically controlled product that can charge to 12V/24V storage battery, specifically a kind of structure of electronic control type charger product and the design of circuit board.
Background technology
Current, the competition in charger product market, not only be embodied in the advance of technology, also depend on the circuit function of charger, outward appearance and structural design, the advance of manufacturing process, the height of production efficiency, the number of production cost to a great extent, the aspects such as the consistency of product and reliability.
At present, on domestic and international market, the output voltage of small battery charger has 6V/12V/24V etc. dissimilar usually.Charging current is usually at 1 ~ 50A.The electric current of the large-scale charger of minority can reach the level of hundreds of amperes.When considering low cost, small area analysis grade is as the product of the charger product of 2A, 4A, 20A etc. normally main flow.But on market, much this series products is the version adopting traditional transformer and rectifier.This type of charger, due to be adopt be transformed to low-voltage AC through low frequency 50Hz or 60Hz transformer, mode again through over commutation realizes, therefore, product with low content of technology, transformer and rectifier heavy, consumptive material is many, caloric value is large, and work capacity conversion efficiency is low, the problem that small product size is large, Heavy Weight etc. is numerous.Over closer year, the development of electron controls technology has also promoted the development of electronic control type battery charger.This kind of charger, owing to require and the control technology mode that adopts has different significantly from the traditional charger product of transformer-rectifier formula for satisfied output, therefore, technical performance and the index such as energy-conservation are better than traditional charger greatly.Advanced technology, the transformer of this type of charger is greatly reduced, and is not the form of common transformer, but in adopting or the transformer of high frequency switch power or the inverter core material etc. that makes transformer there occurs basic change.Not only volume is little, and weight is very light, more convenient to carry and transport.Rectifier neither be common the rectifier that forms of diode, but adopt the rectifier of fast recovery diode.The aspects such as generate heat also very little, the energy conversion efficiency of power supply is high, energy-conservation and material-saving are very outstanding.Therefore, the charger of switch voltage-stabilizing or inverter is described as " novel high-efficiency and energy-saving power supply ", represents the developing direction of stabilized voltage power supply.Because internal components is operated in HF switch state, therefore the energy level that itself consumes is low.Charger efficiency can reach more than 90%, improves nearly one times than the efficiency of the charger of traditional transformer rectification.Along with the develop rapidly of light source of charger technology, switch voltage-stabilizing or inverter charger are just towards miniaturization, high frequency, integrated future development, and high efficiency switch voltage-stabilizing or inverter charger have obtained applying more and more widely.Future is the replacer of traditional charger certainly.
Electronic Control class charger, mainly relies on circuit board and control circuit above thereof to realize the function of product.Usually, compared with traditional charger, their circuit relative complex.The mode of production is also based on the manufacture of circuit board and assembling product.Certainly, under identical output voltage and current class, different products, the design of its circuit theory and circuit board, and the mode of production may be all diverse.These all affect the technical performance of product, reliability, production and manufacturing cost, product competitiveness in the market etc.That is, the charger that structure is different with circuit design, its technical parameter, serviceability, production efficiency, even product appearance and reliability and the market competitiveness etc. are that difference is larger.
Although the kind adopting the electrical charger of switching technique is many, but their circuit and internal structure external structure form are also diversified, different circuit and structural design thinking thereof, the physical circuit form adopted and the mode of whole product and circuit arrangement are different, moreover, the performance index of charger comprise output current/voltage, the class of insulation, temperature rise, manufacture craft level, product reliability etc. also can show some obvious gaps.Even under identical product parameters performance index, due to the difference of physical circuit and charger construction design aspect thereof, or the packing forms of the electronic devices and components adopted is different, thus the assembling of the components and parts such as circuit board, welding and characterization processes level, automaticity etc. also can be obviously different, and the cost of the convenience of installing when this will make this kind of product circuit plate produce, production efficiency, production cost, product etc. also can remarkable difference.Such as, if adopt the charger of a large amount of surface-mounted device and integrated circuit, because the volume of these devices is little, the size of circuit board thus can be made to reduce, reduce the cost of PCB material.Meanwhile, because these devices of welding equipment adopt advanced person, efficient, the equipment that is suitable for automated production in enormous quantities and detection usually, so, greatly can improve the production efficiency of circuit board or product, reduce production cost, increase the competitiveness of product in market.
Utility model content
The purpose of this utility model is to provide a kind of
12V/24V Electronic Control battery charger, the single control board structure of its inner employing, the parts such as the charger control output line of additional casing, power supply line and Band clamp, production mainly solves processing and the debugging problem of circuit board, and the assembling of product is fairly simple; The utility model not use only advanced inverter control technology, but also have employed advanced process technology and technique to produce circuit board, charger has the advantages such as rational in infrastructure, volume is little, lightweight, cost is low, production efficiency is high, manufacturing technology is advanced.
For achieving the above object by the following technical solutions:
A kind of 12V/24V Electronic Control battery charger, is characterized in that: charger comprises chassis backplane, casing enclosing cover, front panel, ammeter, charging current regulator potentiometer, double-colored redness and green indicating lamp, yellow indicator lamp, circuit board assemblies, power supply line, two sub-lines of storage battery bottle clip; Charger is single circuit plate component structure, circuit board assemblies is screwed on chassis backplane, corresponding circuit connection is carried out by wire between circuit board assemblies, power supply line, two storage battery bottle clip, the connecting line of power supply line and two storage battery bottle clip is respectively in the both sides of charger, and they are fixed on chassis backplane respective card slot position by wire fixer.
Described circuit board assemblies comprises circuit board, circuit board upper surface is provided with electrochemical capacitor, electric capacity, reactance, field effect metal-oxide-semiconductor and fin, diode and fin, these large-sized elements of transformer, other undersized element adopts the element of paster, and utilizing automatic chip mounting and bonding machine to be arranged on the bottom surface of circuit board, the rear of circuit board upper surface large-size components is provided with fan, and fan is fixed on the thermovent on front side of chassis backplane.
Circuit board assemblies comprised the rectifier of thermistor, fuse and four diode compositions, input alternating current is become direct current by rectifier after rectification, again through the filtering of the electrochemical capacitor of rectifier output end, become comparatively stable+310V direct current and supply the power circuit work be made up of metal-oxide-semiconductor, transformer and diode and peripheral circuit again; + 310V voltage, through the power circuit of metal-oxide-semiconductor, transformer and the composition such as diode and peripheral components, produces supply voltage; The voltage of normal work is provided to the circuit that pwm pulse width control system chip, driving chip, operational amplifier and peripheral components form through electrochemical capacitor filtering.
Described charger is used for the Electronic Control charger product of 12V/24V charge in batteries, comprises the shell of charger and is located at each parts of the formation charger in this shell body.The utility model charger design is the internal structure of single circuit plate.Main parts size comprises: chassis backplane, casing enclosing cover, ammeter, charging current regulator potentiometer, containing power supply, overheated, reverse polarity connection indicator light, circuit board assemblies, power supply line, two sub-lines of storage battery bottle clip etc.Described charger, to the storage battery of 12V, its charging current can regulate continuously between 1 ~ 20A; To the storage battery of 24V, its charging current can regulate continuously between 1 ~ 15A.Charger has three kinds of charge modes, is respectively constant current, constant voltage, floating charge pattern.Automatic charging can be carried out to the storage battery of Multiple Type and specification.And have overheated, when battery pole back connection defencive function.Charger is of a size of 200 × 175 × 105mm.Weight is 1.5kg.Low-profile, attractive in appearance.Not only volume is little, lightweight, and carries very convenient.The design of the utility model charger circuitry and topology layout is unique, and having the characteristic of oneself, is emphasis and the claim of the utility model patent protection.
Accompanying drawing explanation
Fig. 1 is the structural design schematic diagram of the utility model charger;
Fig. 2 is the circuit theory diagrams () of the utility model charger;
Fig. 3 is the circuit theory diagrams (two) of the utility model charger;
Fig. 4 is the layout of the partial circuit plate device of the utility model charger;
In accompanying drawing, each component names is as follows: 1, screw 2, handle 3, casing enclosing cover 4, black self-tapping screw 5, electrochemical capacitor 6, electric capacity 7, metal-oxide-semiconductor and fin 8, metal-oxide-semiconductor and fin 9, circuit board 10, diode and fin 11, resistance 12, metal-oxide-semiconductor 13, electrochemical capacitor 14, reactance 15, transformer 16, power line and plug 17 thereof, export clip connecting line red 18, export clip connecting line black 19, wire fixer 20, fan 21, chassis backplane 22, front panel 23, ammeter 24, indicator light 25, 0/1 P cock, 26 potentiometers and knob thereof.
Embodiment
As shown in Figure 1, the utility model charger: a kind of structure of 12V/24V Electronic Control battery charger and circuit design, charger is primarily of front panel 22, chassis backplane 21, casing enclosing cover 3, circuit board 9, power supply line and plug 16, wire fixer 19, two storage battery bottle clip 17 and 18, blower fans 20; Ammeter 23 on front panel 22, indicator light 24,0/1 P cock 25, Current adjustment potentiometer and knob 26; Electrochemical capacitor 5,13 on circuit board 9 and the part such as electric capacity 6, resistance 11, metal-oxide-semiconductor and radiator thereof 7,8 and metal-oxide-semiconductor 12, transformer 15, reactor 14, fast recovery diode and heat radiation place 10 composition.
Circuit board 9 is screwed on chassis backplane 21, carry out corresponding circuit connection by wire between the parts such as circuit board 9, power supply line and plug 16, two storage battery bottle clip 17,18, the connecting line of power supply line 16 and two storage battery bottle clip 17,18 is by wire fixer or be called and cannot do not draw de-ly 19 to be fixed on housing respective card slot position.
Described charger, its circuit composition is shown in shown in accompanying drawing 2,3; The component side device layout design of its circuit board 9 is shown in shown in accompanying drawing 4, circuit board mainly contains: 100 μ F/400V electric capacity 5,684/400V electric capacity 6, fin and IRF740 metal-oxide-semiconductor 7,8, fin and MBR20200CT fast recovery diode 10,180 Ω/3W resistance 11, P55NF06 metal-oxide-semiconductor 12,1000 μ F/35V electric capacity 13, reactance 14, main transformer 15, also have the compositions such as a large amount of electronic devices and components.Wherein, on the facade element face of circuit board, there is the device of some plug-in types as large-sized resistance, electric capacity, transformer, reactance, metal-oxide-semiconductor and heat sink assembly and connector assembly etc.; On the reverse side solder side of circuit board, have a lot of devices, be adopt the element of paster, utilizes automatic chip mounting and bonding machine to complete processing.Concrete circuit and the situation of device, can see the schematic diagram of accompanying drawing 2 ~ accompanying drawing 3.
The circuit board that power supply line 16 is charger provides externally fed power supply.Two storage battery bottle clip 17 and 18 are divided into redness and black.During charging, redness represents "+or just " polarity that charger exports, and is connected with "+or just " polar terminals of storage battery; Black represents "-or negative " polarity that charger exports, and is connected with "-or negative " polar terminals of storage battery.Described charger, power supply can be AC 200 ~ 230V, 50Hz or 60Hz.Export specified current/voltage and can reach 20A/12V, 15A/24V.
Accompanying drawing 2 and accompanying drawing 3 are circuit theory diagrams of the utility model charger.Accompanying drawing 4 is section layout figure component sides of the utility model charger circuit board device.The circuit of the utility model charger is primarily of thermistor RR1, fuse RR2, the rectifier GBPC3510 that 4 diode D36 ~ D39 form, filter capacitor C8 and C9, field effect metal-oxide-semiconductor Q17 and Q18, electric capacity C13 ~ C16, transformer T3, fast recovery rectifier diode is containing Q16, D29 ~ D31 etc., metal-oxide-semiconductor pwm pulse width control system chip SG3525, driving chip U3IR2101, program control pipe TL431A, photoelectrical coupler PC817, integrated operational amplifier U1LM324 and U2LM393, dual-colored LED 2 indicator light, overtemperature protection LED1 indicator light, and other a lot of resistance, electric capacity, diode, triode, the device compositions such as voltage-stabiliser tube.Wherein, by thermistor RR1, fuse RR2, rectifier GBPC3510, filter capacitor C8 and C9, field effect metal-oxide-semiconductor Q17 and Q18, transformer T3, fast recovery rectifier diode Q16, electric capacity C13 ~ C16, and other device composition semi-bridge inversion main circuit.Thermistor RR1 plays metering function.Power supply can be AC 180 ~ 230V, 50Hz or 60Hz.Output " VOUT+ " and " VOUT-" are connected with two storage battery bottle clip of corresponding color respectively.Certainly, identical components and parts, different layout type, the circuit board finally made also can be different from the form of accompanying drawing 4.
The operation principle of the utility model charger is summarized as follows: after energising, exchanges 220 ~ 230VAC power supply first after thermistor RR1, fuse RR2, then is input to the rectifier GBPC3510 of 4 diode D36 ~ D39 compositions.Direct current is become after rectification.Again through the filtering of electrochemical capacitor C8 and C9, become comparatively stable+310V direct current.Supply the power circuit some work be made up of metal-oxide-semiconductor Q17 and Q18, transformer T3 and D29 ~ D31, Q9 ~ Q11 and peripheral components etc.The power circuit that+310V voltage forms through D29 ~ D31, Q9 ~ Q11 and peripheral components etc., produces+Vcc supply voltage.Through electric capacity C6 filtering, the circuit formed to pwm pulse width control system chip SG3525, driving chip U3IR2101, operational amplifier and peripheral components etc. provides the normal voltage worked.Because+Vcc supply voltage is from foregoing circuit, therefore eliminate a control transformer, reduce the cost of product.
Under the effect of control circuit, the energy conversion of charger is by by thermistor RR1, fuse RR2, rectifier GBPC3510, filter capacitor C8 and C9, field effect metal-oxide-semiconductor Q17 and Q18, transformer T3, fast recovery rectifier diode Q16, electric capacity C13 ~ C16, and the semi-bridge inversion main circuit of other device composition realizes.OUT+ with the OUT-end of this main circuit exports the different direct voltage of numerical value or electric current for accumulator load.The square wave pwm signal that SG3525 chip 11 and 14 pin exports, through U3 driving chip IR2101, then works respectively by grid current-limiting resistance R64 and R66 rear drive metal-oxide-semiconductor Q17 and Q18, makes two metal-oxide-semiconductor alternate conduction or shutoff.When after metal-oxide-semiconductor Q17 and Q18 alternate conduction, be attached thereto electric current of intermediate frequency or the voltage that alternation in the primary winding coil of the high frequency transformer T3 connect, will be produced.Again after the secondary winding coil step-down of this transformer, be direct current by fast recovery rectifier diode Q16 rectifying conversion, finally export the charging voltage needed for storage battery and electric current.
The accumulator polarity that the devices such as the resistance of metal-oxide-semiconductor Q13 ~ Q15, diode D28, triode Q8 and periphery thereof form the utility model charger connects anti-protective circuit.When red charging clip is connected to the negative polarity of battery, and black charging clip is connected to the positive polarity of battery, and when namely there is reverse polarity connection phenomenon, the voltage of battery can make Q8 triode ON, and the voltage of restriction D40 voltage-stabiliser tube is low.Such field effect transistor Q13 ~ Q15 will be in cut-off or off state, and no-output, also just cannot charge to storage battery.
In electric appliance casing front panel accompanying drawing 1 22 are provided with 24 in red and green bi-colour LED LED2 and yellow indicator lamp LED1 accompanying drawing 1, can indicate output control and the operating state of charger.In accompanying drawing 2 and 3, XH-02 is the plug of 12VDC and the 24VDC selector switch of the utility model charger.After input power connected by charger, and when being selected 12VDC shelves by switch, the green light of the LED2 bi-colour LED of charger, floating voltage is 14.5V.The charging current adjustable extent of charger is 1A ~ 20A.The dextrorotation of 5K Current adjustment potentiometer is to being 20A time maximum.By the current value of ammeter display charging.Realize so-called " constant current " pattern.When charging voltage is slowly elevated to 13.7V, charging current slowly declines; When charging voltage is elevated to 14.5V, charging current is reduced to about 1A, enters so-called " floating charge " mode state.When 24VDC shelves selected by this switch, the LED2 bi-colour LED when red of charger, floating voltage is 29V.The charging current adjustable extent of charger is 1A ~ 15A.The dextrorotation of 5K Current adjustment potentiometer is to being 15A time maximum.By the current value of ammeter display charging.Realize so-called " constant current " pattern.When charging voltage is slowly elevated to 28.6V, charging current slowly declines; When charging voltage is elevated to 29V, charging current is reduced to about 1A, enters so-called " floating charge " mode state.
When the output of charger is short-circuited phenomenon, field effect transistor Q13 ~ Q15 will be in cut-off or off state, charger no-output.There will not be the phenomenon burning out charger.Play the object of short-circuit protection.
In charger circuit, overheating protection circuit is made up of the thermistor RT, resistance R31, R32, R33, R34, electric capacity C25, operational amplifier U2ALM393, diode D9 ~ D11 etc. of negative temperature coefficient.Operational amplifier U2A circuit part forms voltage comparator.Comparison value is set by resistance R31 and R33.Thermistor RT is close on the radiator of fast recovery diode Q16 in inverter main circuit.When temperature raises, when exceeding set point, the thermistor RT change in resistance of negative temperature coefficient, makes the 1 pin output low level of U2A.This low level, make D10 diode current flow on the one hand, overheating indicator lamp yellow led 1 is lighted, instruction charger generation superheating phenomenon.On the other hand, make D11 diode current flow, the current potential between R1 and R5 is pulled to low level.Like this, the 5K given value of current potentiometer of charger just cannot add to PWM chip SG3525 by numerical value greatly.Which limits the output current of charger.It is made to charge with very little electric current.Because charging current is very little, in inverter main circuit, the radiator temperature of fast recovery diode Q16 can slowly decline.Only have after temperature declines, the change of thermistor RT makes 1 pin of U2A export high level, and D10 just ends, and LED1 extinguishes; D11 ends, and makes the current potential between R1 and R5 become high level.Now, the set-point of 5K given value of current potentiometer just can add to PWM chip SG3525 by numerical value greatly, and charger could recover the charging of big current constant current mode.It is exactly more than the simple procedure description that the utility model realizes overtemperature protection.
Output voltage and the size of current of light source of charger control by control circuit.Carry out output according to the parameter of setting to control.In accompanying drawing 2 and accompanying drawing 3,5K potentiometer is the regulator potentiometer of charging current, can be set the set-point Ug size of charging current by its adjustment.The size of charging output current is detected by shunt, obtains SGND current feedback signal, and is connected to resistance R9, R10, R14 and R88.Form multichannel current negative feedback signal Ufi
1and Ufi
2.The feedback signal of charger output voltage is+VA and+VB.+ VA is added to the anode of D26.+ VB is added to the anode of D27 and D16, the negative electrode of D2, resistance R16 ~ 17 and R40.For the circuit part of the U1D operational amplifier of in four-operational amplifier LM324, U2B, U1B and U1C and periphery thereof, their output can affect the operating state of D1, D3 and D6 diode, finally can affect the output of PC817 linear optical coupling, and then realize the control to output current of charger and voltage.
The triode of PC817 linear optical coupling exports the 2. pin signal that control SG3525, the i.e. 2. pin IN+ in-phase input end of SG3525 internal arithmetic amplifier.The in-phase input end IN+ of its internal arithmetic amplifier of 2. pin of SG3525, inverting input be the IN-of its internal arithmetic amplifier of pin and output 9. pin 1., is an operational amplifier in the inside of SG3525.In the utility model circuit, its 1. pin and output 9. pin link together.Like this, this internal arithmetic amplifier is exactly a follower.
The level height of output 9. pin, can the output pulse width size of the inner pwm pulse width adjustor of control SG3525, finally controls field effect transistor Q17 and Q18 in accompanying drawing 2, to change the output size of charger.Such as, when set-point Ug increases, the output pulse width of the inner pwm pulse width adjustor of SG3525 increases, and the output current of charger is increased; Otherwise, then charging output current is reduced.When the set-point Ug of charging current is constant, and when having output current to change, the charge current stabilizes that the control result of above-mentioned control circuit all will make charger export.Such as, the set-point Ug of charging current is constant, and have output current due to certain external cause increase time, because the current signal of feedback increases, so the PWM output pulse width of controller reduces, make the charging current of output return to set-point.That is, the control result of above-mentioned control circuit all will make the charge current stabilizes of output.
The composition such as resistance, electric capacity, the diode power circuit of the present utility model of program control pipe TL431AA, triode Q3 ~ Q7 and Q15 and periphery thereof.Mainly produce+5V ,+12V voltage, supply other circuit.Such as, the power supply of LM324 operational amplifier; The power supply of 12V DC fan; The power supply etc. of LED1.
Accompanying drawing 4 is layout component sides of the utility model partial circuit plate device.Part of devices on this face adopts automatism card machine according to element.Other elements then adopt manual installation.At the rear portion in this face, i.e. the solder side of circuit board, is designed with or is dispersed with the devices such as a large amount of paster type resistors, electric capacity, diode, triode.These SMD devices adopt automatic placement machine to complete device assembling and welding.Due to the quantity of hand assembled device and the activity duration of welding component fewer, the thus processing of circuit board, the production efficiency of even whole charger is higher.Visible, the design of the utility model circuit board and processing mode also serve good effect for reducing manufacturing cost.
In sum, the output voltage of charger and electric current, accumulator polarity connect anti-, overheated etc. is all by control circui.These control to be the important prerequisite ensureing charger steady operation.
Visible, good circuit and structural design thereof are advantage places of the present utility model, are also the important leverages meeting efficient and low-cost production, high reliability, technical advance.The content of the utility model patent application protection is just to protect the circuit of this charger, structure and circuit-board laying-out to design.
The utility model not use only advanced inverter control technology, but also have employed advanced process technology and technique to produce circuit board.Charger has the advantages such as rational in infrastructure, volume is little, lightweight, cost is low, production efficiency is high, manufacturing technology is advanced.
Above content is the detailed description done the utility model in conjunction with concrete charger circuit, structure and circuit board and controlling functions, can not assert that concrete enforcement of the present utility model is only limited to these explanations.Concerning the others skilled in the art of technical field described in the utility model, under the prerequisite not departing from circuit of the present invention and structural framing, can also make some simple deductions and replacement, these all should be considered as the category belonging to the utility model protection.
Claims (2)
1. a 12V/24V Electronic Control battery charger, is characterized in that: charger comprises chassis backplane, casing enclosing cover, front panel, ammeter, charging current regulator potentiometer, double-colored redness and green indicating lamp, yellow indicator lamp, circuit board assemblies, power supply line, two sub-lines of storage battery bottle clip; Charger is single circuit plate component structure, circuit board assemblies is screwed on chassis backplane, corresponding circuit connection is carried out by wire between circuit board assemblies, power supply line, two storage battery bottle clip, the connecting line of power supply line and two storage battery bottle clip is respectively in the both sides of charger, and they are fixed on chassis backplane respective card slot position by wire fixer.
2. a kind of 12V/24V Electronic Control battery charger as claimed in claim 1, it is characterized in that: circuit board assemblies comprised the rectifier of thermistor, fuse and four diode compositions, input alternating current is become direct current by rectifier after rectification, again through the filtering of the electrochemical capacitor of rectifier output end, the direct current becoming comparatively stable+310V voltage supplies the power circuit work be made up of metal-oxide-semiconductor, transformer and diode and peripheral circuit again; The power circuit that+310V voltage forms through metal-oxide-semiconductor, transformer and diode and peripheral components, produces supply voltage; The voltage of normal work is provided to the circuit that pwm pulse width control system chip, driving chip, operational amplifier and peripheral components form through electrochemical capacitor filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420456139.2U CN204118775U (en) | 2014-08-14 | 2014-08-14 | A kind of 12V/24V Electronic Control battery charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420456139.2U CN204118775U (en) | 2014-08-14 | 2014-08-14 | A kind of 12V/24V Electronic Control battery charger |
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| CN204118775U true CN204118775U (en) | 2015-01-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449768A (en) * | 2015-12-22 | 2016-03-30 | 浙江肯得机电股份有限公司 | SCR and microprocessor controlled storage battery charger |
| CN105471031A (en) * | 2015-12-22 | 2016-04-06 | 浙江肯得机电股份有限公司 | 12 V/24 V 40 A inverting-controlled storage battery charger |
| CN108039764A (en) * | 2017-08-08 | 2018-05-15 | 中山市松信电子有限公司 | Programmable switch formula electric car charger based on solid-state relay |
-
2014
- 2014-08-14 CN CN201420456139.2U patent/CN204118775U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449768A (en) * | 2015-12-22 | 2016-03-30 | 浙江肯得机电股份有限公司 | SCR and microprocessor controlled storage battery charger |
| CN105471031A (en) * | 2015-12-22 | 2016-04-06 | 浙江肯得机电股份有限公司 | 12 V/24 V 40 A inverting-controlled storage battery charger |
| CN108039764A (en) * | 2017-08-08 | 2018-05-15 | 中山市松信电子有限公司 | Programmable switch formula electric car charger based on solid-state relay |
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