CN203707805U - Charger - Google Patents
Charger Download PDFInfo
- Publication number
- CN203707805U CN203707805U CN201320365545.3U CN201320365545U CN203707805U CN 203707805 U CN203707805 U CN 203707805U CN 201320365545 U CN201320365545 U CN 201320365545U CN 203707805 U CN203707805 U CN 203707805U
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- voltage
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- charger
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- Expired - Lifetime
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a charger, and a load voltage collection circuit is used for collecting a voltage signal of a lode, and carrying out output operation according to the collected voltage signal. A main control circuit outputs a corresponding voltage control signal according the amplitude of the voltage of the load. The main control circuit adjusts the voltage control signal through controlling the fixed-frequency PWM duty ratio. After being amplified by a transformer, the voltage control signal enables the output voltage of the charger to be equal to the voltage of the load. When the output voltage of the charger is equal to the voltage of the load, an output relay circuit receives a closing control signal outputted by a main controller, thereby forming a voltage output circuit. A charger voltage output circuit is used for the output of the voltage of the charger. The charger employs the main control circuit for controlling the output voltage and current of the charger, and collecting the outputted voltage and current. When the output voltage of the charger is equal to the voltage of the load, a charger output relay is switched on. When the output current is close to zero, the charger output relay is switched off, thereby prolonging the service life of the output relay.
Description
Technical field
The utility model belongs to electric and electronic technical field, relates in particular to a kind of charger.
Background technology
Charger is commonly referred to as one alternating current is converted to galvanic equipment.Charger is of many uses in every field, is particularly widely used in the common electrical appliance such as mobile phone, electric automobile at sphere of life.Charger is to adopt power electronics semiconductor device, and alternating current is transformed to galvanic a kind of static ac dc converter device, and take storage battery as working power or the electricity consumption occasion of stand-by power supply, charger is with a wide range of applications.
High-power charger, output current voltage is larger, and output relay, at high-pressure closing, is understood bad student's spark, the life-span of influencing contactor when large electric current disconnects.
Utility model content
The purpose of this utility model is to provide a kind of charger, is intended to solve the high-power charger that prior art provides, and output current voltage is larger, and output relay, in the time that high-pressure closing, large electric current disconnect, is understood bad student's spark, the problem in influencing contactor life-span.
The utility model is achieved in that a kind of charger, and this charger comprises:
Be used for the electrical appliance voltage collection circuit of the voltage signal that gathers electrical appliance;
Be connected with described electrical appliance voltage collection circuit, the voltage signal of exporting for receiving described electrical appliance voltage collection circuit, and according to the main control circuit of the fixing duty ratio of the big or small output frequency of electrical appliance voltage pwm signal correspondingly;
Be connected with described main control circuit, the fixed-frequency PWM signal of exporting for receiving described master controller, and pwm signal is filtered into the filter circuit of direct voltage;
Be connected with described main control circuit, in the time that charger output voltage equates with electrical appliance voltage, receive the Closed control signal of described master controller output, form the output relay circuit of Voltage-output path;
Be connected with described output relay circuit, carry out the charger voltage output circuit of Voltage-output for charger;
Main control circuit comprises chip U4, and chip U4 adopts single-chip microcomputer XC866.
Further, the physical circuit of described main control circuit is connected to: 1 pin of chip U4 meets voltage source VCC by resistance R; The 4 pin wind-receiving fans of chip U4; The direct ground connection of 7 pin of chip U4,8 pins are connected with 7 pins by capacitor C 15, then ground connection; 11 pins of chip U4 meet voltage source VCC by resistance R; 13 pins of chip U4 are succeeded electrical equipment 2; 13 pins of chip U4 are succeeded electrical equipment 1; 15 pins of chip U4 meet test lead TEST_V2; 16 pins of chip U4 meet TEST_V1; 17 pins of chip U4 meet test lead TEST_C; 18 pins of chip U4 directly meet voltage source VCC, are then connected with 18 pins by capacitor C 16, and then ground connection; 20 pins of chip U4 connect probe temperature 1; 21 pins of chip U4 connect probe temperature 2; 22 pins of chip U4 connect probe temperature 3; The direct ground connection of 24 pin of chip U4; 25 pin parts of chip U4 meet supply voltage VCC, and a part is connected with 24 pins by capacitor C 17, then ground connection; 27 pins of chip U4 connect diode red light; 28 pins of chip U4 connect diode green light; 29 pins of chip U4 connect diode amber light; 32 pins of chip U4 meet output OUT_C; 34 pins of chip U4 connect output voltage; 38 pin parts of chip U4 connect draws capacitor C 18, and a part meets voltage source VCC by resistance R 50.
Further, the physical circuit of described filter circuit is connected to: the inverting input 9 of operational amplifier LMV324 connects operational amplifier LMV324 output 8, operational amplifier LMV324 output 8 connecting resistance R21, in-phase input end 10 parts of operational amplifier LMV324 are by capacitor C 23 ground connection, a part is by resistance R 13, then meet output OUT_V, i.e. 34 pins of chip U4; In like manner, the inverting input 13 of another operational amplifier LMV324 connects operational amplifier LMV324 output 14, operational amplifier LMV324 output 14 connecting resistance R21, in-phase input end 12 parts of operational amplifier LMV324 are by capacitor C 24 ground connection, a part is by resistance R 16, then meet output OUT_C, i.e. 32 pins of chip U4.
Further, the physical circuit of described charger voltage output circuit is connected to: one end contact resistance R9 of resistance R 8, resistance R 9 capacitor C 33 that is connected in parallel, the simultaneously resistance R 9 bipolar diode DZ3 that is also connected in parallel, the direct ground connection of the other end of resistance R 9, capacitor C 33 and bipolar diode DZ3 parallel connection.
Further, the physical circuit of described electrical appliance voltage collection circuit is connected to: one end contact resistance R7 of resistance R 6, resistance R 7 capacitor C 27 that is connected in parallel, the simultaneously resistance R 7 bipolar diode DZ2 that is also connected in parallel, the direct ground connection of the other end of resistance R 7, capacitor C 27 and bipolar diode DZ2 parallel connection.
The charger that the utility model provides, electrical appliance voltage collection circuit gathers the voltage signal of electrical appliance, and gathered voltage signal is exported, main control circuit is exported corresponding voltage control signal according to the size of electrical appliance voltage, filter circuit is by controlling PWM duty and recently adjust and amplifying reference voltage, charger output voltage is equated with electrical appliance voltage, in the time that charger output voltage equates with electrical appliance voltage, output relay circuit receives the Closed control signal of master controller output, form Voltage-output path, charger voltage output circuit is for charger voltage output, this charger utilizing master control circuit controls charger output voltage and electric current, and voltage, the electric current of collection output, closed charger output relay in the time that charger output voltage is equal with electrical appliance voltage, approach at 1 o'clock at output current of charger and disconnect charger output relay, relay does not have spark in the time of closed and disconnected, increase the life-span of output relay, practical, there is stronger propagation and employment and be worth.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the charger that provides of the utility model embodiment;
Fig. 2 is the circuit connection diagram of the main control circuit that provides of the utility model embodiment;
Fig. 3 is the circuit connection diagram of the filter circuit that provides of the utility model embodiment;
Fig. 4 is the circuit connection diagram of the output relay circuit that provides of the utility model embodiment;
Fig. 5 is the circuit connection diagram of the charger voltage output circuit that provides of the utility model embodiment;
Fig. 6 is the circuit connection diagram of the electrical appliance voltage collection circuit that provides of the utility model embodiment.
In figure: 11, electrical appliance voltage collection circuit; 12, main control circuit; 13, filter circuit; 14, output relay circuit; 15, charger voltage output circuit.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the structure of the charger charger that the utility model embodiment provides.For convenience of explanation, only show the part relevant to the utility model embodiment.
This charger comprises:
Be used for the electrical appliance voltage collection circuit 11 of the voltage signal that gathers electrical appliance;
Be connected with electrical appliance voltage collection circuit 11, the voltage signal of exporting for receiving electrical appliance voltage collection circuit 11, and according to the main control circuit 12 of the fixing duty ratio of the big or small output frequency of electrical appliance voltage pwm signal correspondingly;
Be connected with main control circuit 12, the fixed-frequency PWM signal of exporting for receiving master controller, and pwm signal is filtered into the filter circuit 13 of direct voltage;
Be connected with main control circuit 12, in the time that charger output voltage equates with electrical appliance voltage, receive the Closed control signal of master controller output, form the output relay circuit 14 of Voltage-output path;
Be connected with output relay circuit 14, carry out the charger voltage output circuit 15 of Voltage-output for charger;
Main control circuit 12 comprises chip U4, and chip U4 adopts single-chip microcomputer XC866.
Further, the physical circuit of main control circuit 12 is connected to: 1 pin of chip U4 meets voltage source VCC by resistance R; The 4 pin wind-receiving fans of chip U4; The direct ground connection of 7 pin of chip U4,8 pins are connected with 7 pins by capacitor C 15, then ground connection; 11 pins of chip U4 meet voltage source VCC by resistance R; 13 pins of chip U4 are succeeded electrical equipment 2; 13 pins of chip U4 are succeeded electrical equipment 1; 15 pins of chip U4 meet test lead TEST_V2; 16 pins of chip U4 meet TEST_V1; 17 pins of chip U4 meet test lead TEST_C; 18 pins of chip U4 directly meet voltage source VCC, are then connected with 18 pins by capacitor C 16, and then ground connection; 20 pins of chip U4 connect probe temperature 1; 21 pins of chip U4 connect probe temperature 2; 22 pins of chip U4 connect probe temperature 3; The direct ground connection of 24 pin of chip U4; 25 pin parts of chip U4 meet supply voltage VCC, and a part is connected with 24 pins by capacitor C 17, then ground connection; 27 pins of chip U4 connect diode red light; 28 pins of chip U4 connect diode green light; 29 pins of chip U4 connect diode amber light; 32 pins of chip U4 meet output OUT_C; 34 pins of chip U4 connect output voltage; 38 pin parts of chip U4 connect draws capacitor C 18, and a part meets voltage source VCC by resistance R 50.
Further, the physical circuit of filter circuit 13 is connected to: the inverting input 9 of operational amplifier LMV324 connects operational amplifier LMV324 output 8, operational amplifier LMV324 output 8 connecting resistance R21, in-phase input end 10 parts of operational amplifier LMV324 are by capacitor C 23 ground connection, a part is by resistance R 13, then meet output OUT_V, i.e. 34 pins of chip U4; In like manner, the inverting input 13 of another operational amplifier LMV324 connects operational amplifier LMV324 output 14, operational amplifier LMV324 output 14 connecting resistance R21, in-phase input end 12 parts of operational amplifier LMV324 are by capacitor C 24 ground connection, a part is by resistance R 16, then meet output OUT_C, i.e. 32 pins of chip U4.
Further, the physical circuit of charger voltage output circuit 15 is connected to: one end contact resistance R9 of resistance R 8, resistance R 9 capacitor C 33 that is connected in parallel, the simultaneously resistance R 9 bipolar diode DZ3 that is also connected in parallel, the direct ground connection of the other end of resistance R 9, capacitor C 33 and bipolar diode DZ3 parallel connection.
Further, the physical circuit of electrical appliance voltage collection circuit 11 is connected to: one end contact resistance R7 of resistance R 6, resistance R 7 capacitor C 27 that is connected in parallel, the simultaneously resistance R 7 bipolar diode DZ2 that is also connected in parallel, the direct ground connection of the other end of resistance R 7, capacitor C 27 and bipolar diode DZ2 parallel connection.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
Fig. 2 is the physical circuit connection layout of main control circuit 12, and 1 pin of chip U4 meets voltage source VCC by resistance R; The 4 pin wind-receiving fans of chip U4; The direct ground connection of 7 pin of chip U4,8 pins are connected with 7 pins by capacitor C 15, then ground connection; 11 pins of chip U4 meet voltage source VCC by resistance R; 13 pins of chip U4 are succeeded electrical equipment 2; 13 pins of chip U4 are succeeded electrical equipment 1; 15 pins of chip U4 meet test lead TEST_V2; 16 pins of chip U4 meet TEST_V1; 17 pins of chip U4 meet test lead TEST_C; 18 pins of chip U4 directly meet voltage source VCC, are then connected with 18 pins by capacitor C 16, and then ground connection; 20 pins of chip U4 connect probe temperature 1; 21 pins of chip U4 connect probe temperature 2; 22 pins of chip U4 connect probe temperature 3; The direct ground connection of 24 pin of chip U4; 25 pin parts of chip U4 meet supply voltage VCC, and a part is connected with 24 pins by capacitor C 17, then ground connection; 27 pins of chip U4 connect diode red light; 28 pins of chip U4 connect diode green light; 29 pins of chip U4 connect diode amber light; 32 pins of chip U4 meet output OUT_C; 34 pins of chip U4 connect output voltage; 38 pin parts of chip U4 connect draws capacitor C 18, and a part meets voltage source VCC by resistance R 50;
Fig. 3 is the physical circuit connection layout of filter circuit 13, the inverting input 9 of operational amplifier LMV324 connects operational amplifier LMV324 output 8, operational amplifier LMV324 output 8 connecting resistance R21, in-phase input end 10 parts of operational amplifier LMV324 are by capacitor C 23 ground connection, a part is by resistance R 13, then meet output OUT_V, i.e. 34 pins of chip U4; In like manner, the inverting input 13 of another operational amplifier LMV324 connects operational amplifier LMV324 output 14, operational amplifier LMV324 output 14 connecting resistance R21, in-phase input end 12 parts of operational amplifier LMV324 are by capacitor C 24 ground connection, a part is by resistance R 16, then meet output OUT_C, i.e. 32 pins of chip U4.
Fig. 4 is the physical circuit connection layout of output relay circuit 14, a high voltage transistor Q1 collector electrode C part connects diode D4 input, a part is connected on 3 ends of line measuring probe K1A, and the output of diode D4 is connected on 4 ends of line measuring probe K1A, the direct ground connection of high voltage transistor Q1 emitter E; In like manner, a high voltage transistor Q1 collector electrode C part connects diode D5 input, a part is connected on 3 ends of line measuring probe K2A, the output of diode D5 is connected on 4 ends of line measuring probe K2A, the direct ground connection of high voltage transistor Q2 emitter E, a high voltage transistor Q2 base stage B part is by then ground connection of resistance R 27, and a part is succeeded electrical equipment 2 by resistance R 26, i.e. 13 pins of chip U4.
Fig. 5 is the physical circuit connection layout of charger voltage output circuit 15, one end contact resistance R9 of resistance R 8, resistance R 9 capacitor C 33 that is connected in parallel, the resistance R 9 bipolar diode DZ3 that is also connected in parallel simultaneously, the direct ground connection of the other end of resistance R 9, capacitor C 33 and bipolar diode DZ3 parallel connection.
Fig. 6 is the physical circuit connection layout of electrical appliance voltage collection circuit 11, one end contact resistance R7 of resistance R 6, resistance R 7 capacitor C 27 that is connected in parallel, the resistance R 7 bipolar diode DZ2 that is also connected in parallel simultaneously, the direct ground connection of the other end of resistance R 7, capacitor C 27 and bipolar diode DZ2 parallel connection.
The detailed process of closed output relay circuit 14 repeat circuits is as follows:
Single-chip microcomputer XC866 is that chip U4 is according to the electrical appliance voltage collecting, controlling charger output voltage equates with electrical appliance voltage, main control circuit 12 is recently adjusted the reference voltage of filter circuit 13 by controlling PWM duty, reference voltage is through amplifying, charger output voltage is equated with electrical appliance voltage, at this moment main control circuit 12 is by transistor Q2 driver output relay K 2, output relay K2 closed output relay when the voltage at two ends, contact is equal like this, do not have spark to produce, increase relay life.
Disconnect output relay concrete grammar as follows:
In Fig. 2, to control PWM duty ratio be zero to main control circuit 12, and making output current of charger is zero, and output relay is to disconnect for 1 o'clock at the electric current of contact, does not have spark to produce, and has increased the life-span of output relay.
Effect gathers: this utility model utilizes main control circuit 12 to control charger output voltage and electric current, and the electric current and voltage of collection output, closed charger output relay in the time that charger output voltage is equal with electrical appliance voltage, approach at 1 o'clock at output current of charger and disconnect charger output relay, relay does not have spark in the time of closed and disconnected like this, has increased the output relay life-span.
The charger that the utility model embodiment provides, electrical appliance voltage collection circuit 11 gathers the voltage signal of electrical appliance, and gathered voltage signal is exported, main control circuit 12 is according to the big or small output frequency fixed duty cycle of electrical appliance voltage pwm signal correspondingly, filter circuit 13 is filtered into direct voltage PWM, as reference voltage, reference voltage amplifies makes charger output voltage equate with electrical appliance voltage, in the time that charger output voltage equates with electrical appliance voltage, output relay circuit 14 receives the Closed control signal of master controller output, form Voltage-output path, charger voltage output circuit 15 is exported for charger voltage, this charger utilizing main control circuit 12 is controlled charger output voltage and electric current, and voltage, the electric current of collection output, closed charger output relay in the time that charger output voltage is equal with electrical appliance voltage, approach at 1 o'clock at output current of charger and disconnect charger output relay, relay does not have spark in the time of closed and disconnected, increase the life-span of output relay, practical, there is stronger propagation and employment and be worth.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (5)
1. a charger, is characterized in that, this charger comprises:
Be used for the electrical appliance voltage collection circuit of the voltage signal that gathers electrical appliance;
Be connected with described electrical appliance voltage collection circuit, the voltage signal of exporting for receiving described electrical appliance voltage collection circuit, and according to the main control circuit of the fixing duty ratio of the big or small output frequency of electrical appliance voltage pwm signal correspondingly;
Be connected with described main control circuit, the fixed-frequency PWM signal of exporting for receiving described master controller, and pwm signal is filtered into the filter circuit of direct voltage;
Be connected with described main control circuit, in the time that charger output voltage equates with electrical appliance voltage, receive the Closed control signal of described master controller output, form the output relay circuit of Voltage-output path;
Be connected with described output relay circuit, carry out the charger voltage output circuit of Voltage-output for charger,
Main control circuit comprises chip U4, and chip U4 adopts single-chip microcomputer XC866.
2. charger as claimed in claim 1, is characterized in that, the physical circuit of described main control circuit is connected to: 1 pin of chip U4 meets voltage source VCC by resistance R; The 4 pin wind-receiving fans of chip U4; The direct ground connection of 7 pin of chip U4,8 pins are connected with 7 pins by capacitor C 15, then ground connection; 11 pins of chip U4 meet voltage source VCC by resistance R; 13 pins of chip U4 are succeeded electrical equipment 2; 13 pins of chip U4 are succeeded electrical equipment 1; 15 pins of chip U4 meet test lead TEST_V2; 16 pins of chip U4 meet TEST_V1; 17 pins of chip U4 meet test lead TEST_C; 18 pins of chip U4 directly meet voltage source VCC, are then connected with 18 pins by capacitor C 16, and then ground connection; 20 pins of chip U4 connect probe temperature 1; 21 pins of chip U4 connect probe temperature 2; 22 pins of chip U4 connect probe temperature 3; The direct ground connection of 24 pin of chip U4; 25 pin parts of chip U4 meet supply voltage VCC, and a part is connected with 24 pins by capacitor C 17, then ground connection; 27 pins of chip U4 connect diode red light; 28 pins of chip U4 connect diode green light; 29 pins of chip U4 connect diode amber light; 32 pins of chip U4 meet output OUT_C; 34 pins of chip U4 connect output voltage; 38 pin parts of chip U4 connect draws capacitor C 18, and a part meets voltage source VCC by resistance R 50.
3. charger as claimed in claim 1, it is characterized in that, the physical circuit of described filter circuit is connected to: the inverting input 9 of operational amplifier LMV324 connects operational amplifier LMV324 output 8, operational amplifier LMV324 output 8 connecting resistance R21, in-phase input end 10 parts of operational amplifier LMV324 are by capacitor C 23 ground connection, a part, by resistance R 13, then meets output OUT_V, i.e. 34 pins of chip U4; In like manner, the inverting input 13 of another operational amplifier LMV324 connects operational amplifier LMV324 output 14, operational amplifier LMV324 output 14 connecting resistance R21, in-phase input end 12 parts of operational amplifier LMV324 are by capacitor C 24 ground connection, a part is by resistance R 16, then meet output OUT_C, i.e. 32 pins of chip U4.
4. charger as claimed in claim 1, it is characterized in that, the physical circuit of described charger voltage output circuit is connected to: one end contact resistance R9 of resistance R 8, resistance R 9 capacitor C 33 that is connected in parallel, the simultaneously resistance R 9 bipolar diode DZ3 that is also connected in parallel, the direct ground connection of the other end of resistance R 9, capacitor C 33 and bipolar diode DZ3 parallel connection.
5. charger as claimed in claim 1, it is characterized in that, the physical circuit of described electrical appliance voltage collection circuit is connected to: one end contact resistance R7 of resistance R 6, resistance R 7 capacitor C 27 that is connected in parallel, the simultaneously resistance R 7 bipolar diode DZ2 that is also connected in parallel, the direct ground connection of the other end of resistance R 7, capacitor C 27 and bipolar diode DZ2 parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320365545.3U CN203707805U (en) | 2013-06-25 | 2013-06-25 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320365545.3U CN203707805U (en) | 2013-06-25 | 2013-06-25 | Charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707805U true CN203707805U (en) | 2014-07-09 |
Family
ID=51058187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320365545.3U Expired - Lifetime CN203707805U (en) | 2013-06-25 | 2013-06-25 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242352A (en) * | 2014-10-14 | 2014-12-24 | 阳光电源股份有限公司 | Group control method, device and system, photovoltaic inverter and photovoltaic system |
| CN105140577A (en) * | 2015-08-26 | 2015-12-09 | 苏州市博得立电源科技有限公司 | Protective control system for rechargeable battery |
-
2013
- 2013-06-25 CN CN201320365545.3U patent/CN203707805U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242352A (en) * | 2014-10-14 | 2014-12-24 | 阳光电源股份有限公司 | Group control method, device and system, photovoltaic inverter and photovoltaic system |
| CN105140577A (en) * | 2015-08-26 | 2015-12-09 | 苏州市博得立电源科技有限公司 | Protective control system for rechargeable battery |
| CN105140577B (en) * | 2015-08-26 | 2018-03-30 | 苏州市博得立电源科技有限公司 | A kind of protection control device for rechargeable battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
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| CX01 | Expiry of patent term |