CN101997342A - Quick charging device and method - Google Patents
Quick charging device and method Download PDFInfo
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- CN101997342A CN101997342A CN2009100419457A CN200910041945A CN101997342A CN 101997342 A CN101997342 A CN 101997342A CN 2009100419457 A CN2009100419457 A CN 2009100419457A CN 200910041945 A CN200910041945 A CN 200910041945A CN 101997342 A CN101997342 A CN 101997342A
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Abstract
The invention relates to a quick charging device and a quick charging method. A current-limiting unit is used to receive a voltage source provided by a current-limiting voltage source and absorb the maximum output current of the current-limiting voltage source; a voltage-reducing conversion unit converts the current-limiting voltage source into a low-voltage constant current source, and provides the low-voltage constant current source to a counter current preventing unit and generates a display signal of the low-voltage constant current source to a charging display unit; and the counter current preventing unit charges an ultracapacitor and prevents the ultracapacitor from reversely discharging the quick charging device. Meanwhile, a current-limiting control unit senses the voltage of the ultracapacitor and generates a current-limiting control signal so as to regulate the output of the current-limiting unit. Therefore, the charging current of the ultracapacitor is improved and the charging time is shortened, the quick charging function is realized, and the charging state of the ultracapacitor is displayed by the charging display unit.
Description
Technical field
The present invention relates to a kind of quick charge device and method thereof, especially utilize the Current limited Control unit to improve the charge efficiency of current limliting voltage source to super capacitor.
Background technology
Super capacitor (Supercapacitor or Ultracapacitor) has another name called farad capacitor, has the characteristic of ultrahigh capacitance values.With traditional dielectric capacity ratio that microfarad (microfarad) scope capacitance can only be provided, super capacitor generally can reach several farads to tens farads, and has the little advantage of volume, so energy-storage function with practicality, especially be fit to provide instantaneous high-power high electric current, can't provide the shortcoming of high electric current of moment to compensate general battery.In addition, the operating temperature range of super capacitor can reach-40 ℃～85 ℃, and much larger than about 0 ℃～40 ℃ serviceability temperature of secondary cell, or general battery is made an appointment with-20 ℃～60 ℃ serviceability temperature.
At present, super capacitor is widely used in intelligent avometer, shake the control transmitter, message driver, Solar lamp, toy, electromagnetically operated valve, light-emitting diode (LED) display, electric motor car, hybrid vehicle, automobile audio, electric tool, wind power plant, UPS (Uninterruptible Power Supply, UPS), on the equipment such as peak power compensation.
For the stored energy application field, super capacitor needs to be used with battery, and wherein battery provides average power to load, be responsible for simultaneously the super capacitor charging, and super capacitor can spark stored electric energy to load, makes load obtain instantaneous large-current.Provide mobile communication required power consumption such as battery, and super capacitor provides mobile phone to drive the required electric power of loudspeaker, solving loudspeaker when being driven,, influence the broadcast quality of mobile phone communication because of the low-frequency noise that power consumption produced of transient high power produces noise.
Universal serial bus (USB) is the computer connecting interface of at present suitable main flow, and this interface has the power supply of 5V, therefore usually is utilized to be used as the charge power supply of battery of mobile phone.And the 5V power supply of USB can produce suitable charging voltage through simple reduction voltage circuit, and do not need large-scale transformer, convert the low pressure charge power supply to such as civil power,, can design very compactly and be easy to carry so utilize the 5V power supply of USB to be used as the charger of charge power supply with 110V.
In the prior art, the charging modes of super capacitor mainly is to utilize the linear voltage decreasing circuit, the 5V voltage source of USB is downgraded appropriate voltage, and can provide the charging current that is up to 500mA according to the USB2.0 standard, in order to super capacitor is charged.
Another way as shown in Figure 1, the schematic diagram of the super capacitor charging device of prior art, be to utilize current limliting unit 10 to receive USB voltage source VBUS and current-limiting function is provided, by step-down converting unit 20 the 5V voltage source is downgraded appropriate voltage again and super capacitor 90 is charged, then charging current can surpass 500mA, and the size of charging current changes with the conversion efficiency of step-down converting unit 20.
The shortcoming of above-mentioned prior art is that after current limliting unit current limliting, the charging current of step-down converting unit is fixed value normally, that is constant-current charge.Though the therefore charging current 500mA output current that can be provided greater than the USB voltage source, but when beginning to charge, the voltage of super capacitor is less, so the USB voltage source only need provide less output current to the current limliting unit, when rising because of charging along with the voltage of super capacitor, it is big that the output current of the 5V voltage source of USB just can become.Therefore in whole charging process, the output current that the 5V voltage source of USB is provided not is to maintain maximum 500mA always, so the charging modes of prior art is not reached the optimum utilization of USB voltage source, and whole charging interval elongation.
Summary of the invention
Main purpose of the present invention is to provide a kind of quick charge device and method thereof, be to utilize the current limliting unit to receive the voltage source that the current limliting voltage source is provided, and the maximum output current of absorption current limliting voltage source, convert low compression set current and power supply to by the step-down converting unit again and supply with the shows signal that prevents the adverse current unit and produce the low compression set current and power supply of representative and give the charging display unit, prevent that the adverse current unit charges to super capacitor and prevents the reverse discharge of super capacitor to quick charge device.The voltage of Current limited Control unit senses super capacitor produces the Current limited Control signal simultaneously, with the output of adjusting current limliting unit, and utilizes the charging display unit to show the charged state of super capacitor.
Characteristics of the present invention are, continue to draw the maximum output current of current limliting voltage source in the whole charging process, in order to produce maximum charging current, use for the super capacitor charging.Therefore can overcome the problem that can't improve charging current when charging at the beginning in the prior art, realize quick charge in order to shorten the whole charging interval, and improve charge efficiency.
Description of drawings
Fig. 1 is the schematic diagram of the super capacitor charging device of prior art.
Fig. 2 is the schematic diagram of quick charge device first embodiment of the present invention.
Fig. 3 is the circuit diagram of quick charge device first embodiment of the present invention.
Fig. 4 is the schematic diagram of quick charge device second embodiment of the present invention.
Fig. 5 is the circuit diagram of quick charge device second embodiment of the present invention.
Among the figure, 10. current limliting unit, 20. step-down converting units, 30. prevent the adverse current unit, 40. Current limited Control unit, 50. charging display units, 90. super capacitor, C1. first electric capacity, C2. second electric capacity, C3. the 3rd electric capacity, C4. the 4th electric capacity, D1. first diode, the J1.USB joint, L1. first inductance, Q1. the first transistor, Q2. transistor seconds, Q3. the 3rd transistor, R1. first resistance, R2. second resistance, R3. the 3rd resistance, R4. the 4th resistance, R5. the 5th resistance, R6. the 6th resistance, R7. the 7th resistance, R8. the 8th resistance, R9. the 9th resistance, RF. filter resistance, U1. DC-DC converter, VIN. current limliting voltage source, VBUS.USB voltage source.
Embodiment
Below cooperation is graphic does more detailed description with element numbers to execution mode of the present utility model.
See also Fig. 2, it is the schematic diagram of quick charge device first embodiment of the present invention.As shown in Figure 2, the first embodiment of the invention quick charge device comprises current limliting unit 10, step-down converting unit 20, prevents adverse current unit 30, Current limited Control unit 40 and charging display unit 50, in order to utilize current limliting voltage source VIN super capacitor 90 is charged.Wherein current limliting voltage source VIN can be the 5V voltage source of USB, and current limliting unit 10, step-down converting unit 20, prevents that adverse current unit 30, super capacitor 90 and Current limited Control unit 40 from forming feedback control loops.
The voltage of Current limited Control unit 40 sensing super capacitors 90, thus the Current limited Control signal produced, and current limliting unit 10 receives this Current limited Control signal, in order to regulate the current limliting power supply.Therefore, current limliting unit 10, step-down converting unit 20, prevent that adverse current unit 30, super capacitor 90 and Current limited Control unit 40 formed feedback control loops can be according to the voltages of super capacitor 90, dynamic adjustments prevents the charging current size of the 30 pairs of super capacitors 90 in adverse current unit, continue to draw maximum rated current by current limliting unit 10 simultaneously from current limliting voltage source VIN, the maximum output current 500mA that can provide such as the 5V voltage source of USB, thereby reach the optimum utilization of USB voltage source, and shorten the whole charging interval.
In addition, charging display unit 50 receives the shows signal of step-down converting unit 20, thereby show the charging message of representing charged state, this charged state can be charging carry out in/charging is finished, charging voltage value, charging at present at present finished percentage, required charging interval or amounted to the charging interval, and this charge information can be numeral, literal and pattern at least one of them.For example, utilize at least one indicator light to show charging message, represent when opening that charging is carried out, and represent that charging finishes when closing with indicator light with indicator light.Another way is, show charging message with display screen, finish percentage, required charging interval or amount to the charging interval with the present charging voltage value of at least one numeral, charging at present, and this display screen can be LCDs, light emitting diode (LED) display screen, Organic Light Emitting Diode or electronic-paper display screen.Also can utilize display screen to show at least one pattern to represent charging message, in carrying out with blinker pattern representative charging, and stationary pattern representative charging is finished.Perhaps, utilize the display screen display text, such as " charging carries out " or " charging finishes ".
In sum, main feature of the present invention is to draw maximum current from current limliting voltage source VIN between whole charge period always, and when charging at the beginning, maximum charging current is provided, the size of this maximum charging current depends on the step-down converting unit, and, prevent that the charging current of adverse current unit from also can descend, but prevent that the minimum charge current of adverse current unit from being to be not less than the maximum output current that the step-down converting unit can provide along with the voltage of super capacitor rises because of charging.
Below will be with the feature of exemplary example in detail the present invention first enforcement.
See also Fig. 3, it is the circuit diagram of first embodiment of the invention quick charge device.As shown in Figure 3, current limliting voltage source VIN can be provided by the 1st pin of USB joint J1, and with an end be that current limliting unit 10 and step-down converting unit 20 were given in power supply after the other end of first capacitor C 1, second capacitor C 2 and the filter resistance RF of ground connection was connected in parallel.
Step-down converting unit 20 comprises DC-DC converter (DC-DC Converter) U1, the 3rd capacitor C 3, the 4th capacitor C 4, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the first diode D1, the first transistor Q1 and first inductance L 1; wherein the first transistor Q1 has avalanche diode; and the positive pole of avalanche diode connects the drain electrode of the first transistor Q1; the negative pole of avalanche diode connects the source electrode of the first transistor Q1, in order to the big electric current of conducting with protection the first transistor Q1.
DC-DC converter U1 can use product MC34063A, the product A MC34063A of Fu Wei scientific ﹠ technical corporation, product MC34063A, the product MC34063A of ONNN company (ON Semiconductor) of quick semiconductor company (FAIRCHILD) or the product MC34063A of ST Microelectronics (STMicroelectronics) of motor mora company (Motorola).
DC-DC converter U1 has eight pins, be respectively first pin to the octal, in order to the step-down translation function to be provided, wherein crus secunda and the 4th pin are ground connection, the 6th pin is the power input of DC-DC converter U1 and is connected to current limliting voltage source VIN that the 7th pin connects first output of current limliting unit 10.The 3rd resistance R 3 is connected in series with the 4th resistance R 4, and the serial connection point connects the grid of the first transistor Q1, not one of serial connection end of the 3rd resistance R 3 connects the source electrode of the first transistor Q1, one end of the not serial connection of the 4th resistance R 4 connects first pin and the octal of direct current transducer U1, the drain electrode of the first transistor Q1 connects the negative pole of the first diode D1 and an end of first inductance L 1, and provides shows signal to charging display unit 50.The 5th pin connects the 5th resistance R 5 of serial connection and being connected in series a little of the 6th resistance R 6, a not end of serial connection of the 5th resistance R 5 is a ground connection, and a not end of serial connection of the 6th resistance R 6 connects the other end of first inductance L 1 and an end of the 3rd capacitor C 3, and provides low-tension supply to preventing adverse current unit 30.The other end of the 3rd capacitor C 3 is a ground connection, and tripod connects an end of the 4th capacitor C 4, and the other end of the 4th capacitor C 4 is a ground connection.
Prevent that adverse current unit 30 from comprising the 7th resistance R 7 and transistor seconds Q2, wherein transistor seconds Q2 has avalanche diode, and its function is identical with the avalanche diode of the first transistor Q1.One end of the 7th resistance R 7 connects current limliting voltage source VIN, and the other end of the 7th resistance R 7 connects the grid of transistor seconds Q2, and the source electrode of transistor seconds Q2 connects the low-tension supply that step-down converting unit 20 is provided.The drain electrode of transistor seconds Q2 provides charging current, and connects the anode and the Current limited Control unit 40 of super capacitor 90.The negativing ending grounding of super capacitor 90.
Current limited Control unit 40 comprises the 8th resistance R 8 and the 9th resistance R 9 of the 3rd transistor Q3 and serial connection, and wherein the 3rd transistor Q3 has avalanche diode, and its function is identical with the avalanche diode of the first transistor Q1.The grid of the 3rd transistor Q3 connects being connected in series a little of the 8th resistance R 8 and the 9th resistance R 9, and an end of the not serial connection of the 8th resistance R 8 connects current limliting voltage source VIN, and an end of the not serial connection of the 9th resistance R 9 connects the anode of super capacitor 90.Exceed first output of stream control unit 40 of the source electrode of the 3rd transistor Q3, and the first input end of connection current limliting unit 10, and exceed second output of stream control unit 40 of the drain electrode of the 3rd transistor Q3, and connect the source electrode of the first transistor Q1 in the step-down converting unit 20 and first output of current limliting unit 10.
Be noted that, the example of Fig. 3 is just in order to illustrate the example of characteristics of the present invention, be not in order to limit the scope of the invention, therefore the different circuit that have identical function, all should be contained in the scope of the present invention, be integral chip or several the discrete assemblies that DC-DC converter U1 can select the identical buck functionality of other tool for use, or the 8th resistance R 8 of Current limited Control unit 40 and the 9th resistance R 9 can replace with a plurality of transistors, to realize identical function.
The handling process of fast charge method of the present invention below will be described.
Fast charge method of the present invention is to utilize the current limliting unit to receive the current limliting voltage source, and produces the current limliting power supply signal; Utilize the step-down converting unit that the step-down of current limliting power supply is produced low-tension supply, and produce the shows signal that corresponds to low-tension supply; Utilize the charging display unit to receive shows signal, to show the charging message of the charged state of representing super capacitor; Utilization prevents that the adverse current unit from receiving low-tension supply, and provides charging current that super capacitor is charged, and prevents that simultaneously super capacitor from producing reverse discharge; Utilize the voltage of Current limited Control unit senses super capacitor, and produce the Current limited Control signal; And utilize the current limliting unit to receive this Current limited Control signal, be supplied to the current limliting power supply of step-down converting unit in order to adjusting.
If super capacitor can separate with charging device after finishing charging, can not need then to prevent that super capacitor from flowing back to the present invention with stored electric power in the mode of backward current, promptly do not need to prevent the adverse current unit, and can directly by the low-tension supply of step-down converting unit super capacitor be charged, thereby the simplification circuit design further promotes the reliability of charging.The second embodiment of the present invention is promptly in order to realize above-mentioned charge function.
See also Fig. 4, the schematic diagram of second embodiment of the invention quick charge device.As shown in Figure 2, except that not comprising the preventing the adverse current unit 30 of Fig. 2, other parts all first embodiment with Fig. 2 are identical, main difference is that the second embodiment of the present invention is directly super capacitor 90 to be charged by the low-tension supply that step-down converting unit 20 is produced, do not provide the function that prevents adverse current, and current limliting unit 10, step-down converting unit 20, super capacitor 90 and Current limited Control unit 40 form feedback control loop.
See also Fig. 5, the present invention second implements the circuit diagram of quick charge device.Prevent the adverse current unit 30 that except that what do not comprise Fig. 3 other parts all first embodiment with Fig. 3 are identical, that is the anode of super capacitor 90 is to connect low-tension supply that step-down converting unit 20 provided to obtain charging.
The handling process of another fast charge method of the present invention below will be described.
Another fast charge method of the present invention is to utilize the current limliting unit to receive the current limliting voltage source, and produces the current limliting power supply signal; Utilize the step-down converting unit that the step-down of current limliting power supply is produced low-tension supply, and produce the shows signal that corresponds to low-tension supply; Utilize the charging display unit to receive shows signal, to show the charging message of the charged state of representing super capacitor; Utilize low-tension supply that charging current is provided and super capacitor is charged; Utilize the voltage of Current limited Control unit senses super capacitor, and produce the Current limited Control signal; Utilize the current limliting unit to receive this Current limited Control signal, be supplied to the current limliting power supply of step-down converting unit in order to adjusting; And after finishing charging super capacitor is separated from.
The above person in order to explain the preferred embodiment of this creation, is not that attempt is done any pro forma restriction to this creation according to this only.Therefore, all have in following any modification or the change of doing relevant this creation of identical creation spirit, all must be included in the category of this creation intention protection.
Claims (36)
1. quick charge device, in order to by a current limliting voltage source one super capacitor is carried out quick charge, it is characterized in that: this quick charge device comprises:
One current limliting unit receives this current limliting voltage source, and through current limliting producing a current limliting power supply signal, and this current limliting unit tool one first input end and one first output;
One step-down converting unit receives this current limliting power supply signal, and the step-down of current limliting voltage source is produced a low-tension supply, and produces a shows signal that corresponds to this low-tension supply;
One charging display unit receives this shows signal, to show a charging message of the charged state of representing this super capacitor;
One prevents the adverse current unit, receives this low-tension supply, and provide a charging current to this super capacitor charging, and prevent this super capacitor adverse current discharge; And
One Current limited Control unit, the voltage of this super capacitor of sensing, thus producing a Current limited Control signal, this Current limited Control unit also has one first output and one second output, connects the first input end and first output of this current limliting unit respectively;
Wherein this current limliting unit receives this Current limited Control signal, in order to regulate this current limliting power supply signal, this current limliting voltage source has a maximum output current, and this quick charge device continues to draw the maximum output current of this current limliting voltage source in the process that this super capacitor is charged.
2. quick charge device as claimed in claim 1 is characterized in that: this charged state comprise charging carry out in/charging is finished, percentage, required charging interval are finished in charging voltage value, charging at present at present and amount to the charging interval at least one of them.
3. quick charge device as claimed in claim 1 is characterized in that: this charging message comprise numeral, literal and pattern at least one of them.
4. quick charge device as claimed in claim 1, it is characterized in that: this charging display unit comprises at least one indicator light, representing this charging message, this charging message comprises represents when this indicator light is opened that charging is carried out, and this indicator light represents that charging finishes when closing.
5. quick charge device as claimed in claim 1, it is characterized in that: this charging display unit comprises a display screen, show at least one numeral, representing this charging message, this charging message comprises that present charging voltage value, charging at present finish percentage, required charging interval and amount to one of them of charging interval.
6. quick charge device as claimed in claim 1, it is characterized in that: this charging display unit comprises a display screen, show at least one pattern, to represent this charging message, it is during blinker pattern interval scale charging is carried out that this charging message is included in this pattern, and this pattern to be stationary pattern interval scale charging finish.
7. quick charge device as claimed in claim 1 is characterized in that: this charging display unit comprises a display screen, shows at least one literal, to represent this charging message.
8. as each described quick charge device in the claim 5 to 7, it is characterized in that: this display screen is a LCDs, or light emitting diode (LED) display screen, or Organic Light Emitting Diode, or electronic-paper display screen.
9. quick charge device as claimed in claim 1 is characterized in that: this current limliting voltage source is the voltage source of serial bus (USB), and with an end be that the other end of one first electric capacity, one second electric capacity and a filter resistance of ground connection is connected in parallel.
10. quick charge device as claimed in claim 1, it is characterized in that: this current limliting unit comprises one first resistance and one second resistance of serial connection, a not end of serial connection of this first resistance connects this current limliting voltage source, a string contact of this first resistance and this second resistance is this first input end, and a not end of serial connection of this second resistance is this first output.
11. quick charge device as claimed in claim 1; it is characterized in that: this step-down converting unit comprises and flow to direct current transducer (DC-DC Converter) always; one the 3rd electric capacity; one the 4th electric capacity; one the 3rd resistance; one the 4th resistance; one the 5th resistance; one the 6th resistance; one first diode; one the first transistor and one first inductance; this the first transistor has an avalanche diode; the positive pole of this avalanche diode connects the drain electrode of this first transistor; the negative pole of this avalanche diode connects the source electrode of this first transistor; in order to the big electric current of conducting to protect this first transistor; this DC-DC converter has the step-down translation function and has eight pins; be respectively one first pin to an octal, the connected mode of this step-down converting unit comprises:
The crus secunda of this DC-DC converter and the 4th pin ground connection;
The 6th pin of this DC-DC converter is the power input of DC-DC converter and is connected to the current limliting voltage source;
The 7th pin of this DC-DC converter connects first output of this current limliting unit;
The 3rd resistance is connected in series with the 4th resistance, and the 3rd resistance is connected the grid of this first transistor with a string contact of the 4th resistance, a not end of serial connection of the 3rd resistance connects the source electrode of this first transistor, and a not end of serial connection of the 4th resistance connects first pin and the octal of this direct current transducer;
The drain electrode of this first transistor connects the negative pole of this first diode and an end of this first inductance, and provides this shows signal to this display unit that charges;
The 5th pin of this DC-DC converter connects the 5th resistance of serial connection and a string contact of the 6th resistance, a not end of serial connection of the 5th resistance is a ground connection, and a not end of serial connection of the 6th resistance connects the other end of this first inductance and an end of the 3rd electric capacity, and provides this low-tension supply to prevent the adverse current unit to this; And
The other end of the 3rd electric capacity is a ground connection, and the tripod of this DC-DC converter connects an end of the 4th electric capacity, and the other end of the 4th electric capacity is a ground connection.
12. quick charge device as claimed in claim 1; it is characterized in that: this prevents that the adverse current unit from comprising one the 7th resistance and a transistor seconds; this transistor seconds has an avalanche diode; the positive pole of this avalanche diode connects the drain electrode of this transistor seconds; the negative pole of this avalanche diode connects the source electrode of this transistor seconds; in order to the big electric current of conducting to protect this transistor seconds; one end of the 7th resistance connects this current limliting voltage source; the other end of the 7th resistance connects the grid of this transistor seconds; the source electrode of this transistor seconds connects the low-tension supply that this step-down converting unit is provided; the drain electrode of this transistor seconds provides this charging current; and connect anode and this Current limited Control unit of this super capacitor, and the negative terminal of this super capacitor is a ground connection.
13. quick charge device as claimed in claim 1; it is characterized in that: this Current limited Control unit comprises one the 8th resistance and one the 9th resistance of one the 3rd transistor and serial connection; the 3rd transistor has an avalanche diode; the positive pole of this avalanche diode connects the 3rd transistor drain; the negative pole of this avalanche diode connects the 3rd transistorized source electrode; in order to the big electric current of conducting to protect the 3rd transistor; the 3rd transistorized grid connects a string contact of the 8th resistance and the 9th resistance; a not end of serial connection of the 8th resistance connects this current limliting voltage source; a not end of serial connection of the 9th resistance connects the anode of this super capacitor; the 3rd transistorized source electrode is first output of this Current limited Control unit; and connect the first input end of this current limliting unit; and the 3rd transistor drain is second output of this Current limited Control unit, and connects the source electrode of this first transistor in this step-down converting unit and first output of this current limliting unit.
14. a fast charge method, in order to by a current limliting voltage source one super capacitor is charged, it is characterized in that: this method comprises:
Utilize a current limliting unit receiving this current limliting voltage source, and produce a current limliting power supply signal, and this current limliting unit tool one first input end and one first output;
Utilize a step-down converting unit that this current limliting piezoelectric voltage source step-down is produced a low-tension supply, and produce a shows signal that corresponds to this low-tension supply;
Utilize a charging display unit, receive this shows signal, to show a charging message of the charged state of representing this super capacitor;
Utilize one to prevent the adverse current unit receiving this low-tension supply, and provide and fill an electric current this super capacitor is charged, prevent that simultaneously this super capacitor from producing adverse current discharge;
Utilize the voltage of a Current limited Control unit, and produce a Current limited Control signal with this super capacitor of sensing; And
Utilize this current limliting unit to receive this Current limited Control signal, be supplied to the current limliting power supply signal of this step-down converting unit in order to adjusting, this Current limited Control unit also has one first output and one second output, connects the first input end and first output of this current limliting unit respectively;
Wherein this current limliting voltage source has a maximum output current, and this fast charge method continues to draw the maximum output current of this current limliting voltage source in the process that this super capacitor is charged.
15. fast charge method as claimed in claim 14 is characterized in that: this current limliting voltage source is the voltage source of serial bus (USB), and with an end be that the other end of one first electric capacity, one second electric capacity and a filter resistance of ground connection is connected in parallel.
16. fast charge method as claimed in claim 14, it is characterized in that: this current limliting unit comprises one first resistance and one second resistance of serial connection, a not end of serial connection of this first resistance connects this current limliting voltage source, a string contact of this first resistance and this second resistance is this first input end, and a not end of serial connection of this second resistance is this first output.
17. fast charge method as claimed in claim 14; it is characterized in that: this step-down converting unit comprises and flow to direct current transducer (DC-DC Converter) always; one the 3rd electric capacity; one the 4th electric capacity; one the 3rd resistance; one the 4th resistance; one the 5th resistance; one the 6th resistance; one first diode; one the first transistor and one first inductance; this the first transistor has an avalanche diode; the positive pole of this avalanche diode connects the drain electrode of this first transistor; the negative pole of this avalanche diode connects the source electrode of this first transistor; in order to the big electric current of conducting to protect this first transistor; this DC-DC converter has the step-down translation function and has eight pins; be respectively one first pin to an octal, the connected mode of this step-down converting unit comprises:
The crus secunda of this DC-DC converter and the 4th pin are ground connection;
The 6th pin of this DC-DC converter is the power input of DC-DC converter and is connected to the current limliting voltage source;
The 7th pin of this DC-DC converter connects first output of this current limliting unit;
The 3rd resistance is connected in series with the 4th resistance, and the 3rd resistance is connected the grid of this first transistor with a string contact of the 4th resistance, a not end of serial connection of the 3rd resistance connects the source electrode of this first transistor, and a not end of serial connection of the 4th resistance connects first pin and the octal of this direct current transducer;
The drain electrode of this first transistor connects the negative pole of this first diode and an end of this first inductance, and provides this shows signal to this display unit that charges;
The 5th pin of this DC-DC converter connects the 5th resistance of serial connection and a string contact of the 6th resistance, a not end of serial connection of the 5th resistance is a ground connection, and a not end of serial connection of the 6th resistance connects the other end of this first inductance and an end of the 3rd electric capacity, and provides this low-tension supply to prevent the adverse current unit to this; And
The other end of the 3rd electric capacity is a ground connection, and the tripod of this DC-DC converter connects an end of the 4th electric capacity, and the other end of the 4th electric capacity is a ground connection.
18. fast charge method as claimed in claim 14; it is characterized in that: this prevents that the adverse current unit from comprising one the 7th resistance and a transistor seconds; this transistor seconds has an avalanche diode; the positive pole of this avalanche diode connects the drain electrode of this transistor seconds; the negative pole of this avalanche diode connects the source electrode of this transistor seconds; in order to the big electric current of conducting to protect this transistor seconds; one end of the 7th resistance connects this current limliting voltage source; the other end of the 7th resistance connects the grid of this transistor seconds; the source electrode of this transistor seconds connects the low-tension supply that this step-down converting unit is provided; the drain electrode of this transistor seconds provides this charging current; and connect anode and this Current limited Control unit of this super capacitor, and the negative terminal of this super capacitor is a ground connection.
19. fast charge method as claimed in claim 14, it is characterized in that: this Current limited Control unit comprises one the 8th resistance and one the 9th resistance of one the 3rd transistor and serial connection, the 3rd transistor has an avalanche diode, the positive pole of this avalanche diode connects the 3rd transistor drain, the negative pole of this avalanche diode connects the 3rd transistorized source electrode, in order to the big electric current of conducting to protect the 3rd transistor; The 3rd transistorized grid connects a string contact of the 8th resistance and the 9th resistance, a not end of serial connection of the 8th resistance connects this current limliting voltage source, a not end of serial connection of the 9th resistance connects the anode of this super capacitor, the 3rd transistorized source electrode is first output of this Current limited Control unit, and connect the first input end of this current limliting unit, and the 3rd transistor drain is second output of this Current limited Control unit, and connects the source electrode of this first transistor in this step-down converting unit and first output of this current limliting unit.
20. a quick charge device, in order to by a current limliting voltage source one super capacitor is carried out quick charge, it is characterized in that: this quick charge device comprises:
One current limliting unit receives this current limliting voltage source, and through current limliting producing a current limliting power supply signal, and this current limliting unit tool one first input end and one first output;
One step-down converting unit, receive this current limliting power supply signal, and the step-down of current limliting voltage source is produced a low-tension supply, and produce a shows signal that corresponds to this low-tension supply, this low-tension supply connects this super capacitor, in order to a charging current to be provided this super capacitor is carried out quick charge;
One charging display unit receives this shows signal, to show a charging message of the charged state of representing this super capacitor; And
One Current limited Control unit, the voltage of this super capacitor of sensing, thus producing a Current limited Control signal, this Current limited Control unit also has one first output and one second output, connects the first input end and first output of this current limliting unit respectively;
Wherein this current limliting unit receives this Current limited Control signal, in order to regulate this current limliting power supply signal, this current limliting voltage source has a maximum output current, and this quick charge device continues to draw the maximum output current of this current limliting voltage source in the process that this super capacitor is charged.
21. quick charge device as claimed in claim 20 is characterized in that: this charged state comprise charging carry out in/charging is finished, percentage, required charging interval are finished in charging voltage value, charging at present at present and amount to the charging interval at least one of them.
22. quick charge device as claimed in claim 20 is characterized in that: this charging message comprise numeral, literal and pattern at least one of them.
23. quick charge device as claimed in claim 20, it is characterized in that: this charging display unit comprises at least one indicator light, representing this charging message, this charging message comprises represents when this indicator light is opened that charging is carried out, and this indicator light represents that charging finishes when closing.
24. quick charge device as claimed in claim 20, it is characterized in that: this charging display unit comprises a display screen, show at least one numeral, representing this charging message, this charging message comprises that present charging voltage value, charging at present finish percentage, required charging interval and amount to one of them of charging interval.
25. quick charge device as claimed in claim 20, it is characterized in that: this charging display unit comprises a display screen, show at least one pattern, to represent this charging message, it is during blinker pattern interval scale charging is carried out that this charging message is included in this pattern, and this pattern to be stationary pattern interval scale charging finish.
26. quick charge device as claimed in claim 20 is characterized in that: this charging display unit comprises a display screen, shows at least one literal, to represent this charging message.
27. as each described quick charge device in the claim 24-26 item, it is characterized in that: this display screen is LCDs or light emitting diode (LED) display screen or Organic Light Emitting Diode or electronic-paper display screen.
28. quick charge device as claimed in claim 20 is characterized in that: this current limliting voltage source is the voltage source of serial bus (USB), and with an end be that the other end of one first electric capacity, one second electric capacity and a filter resistance of ground connection is connected in parallel.
29. quick charge device as claimed in claim 20, it is characterized in that: this current limliting unit comprises one first resistance and one second resistance of serial connection, a not end of serial connection of this first resistance connects this current limliting voltage source, a string contact of this first resistance and this second resistance is this first input end, and a not end of serial connection of this second resistance is this first output.
30. quick charge device as claimed in claim 20; it is characterized in that: this step-down converting unit comprises and flow to direct current transducer (DC-DC Converter) always; one the 3rd electric capacity; one the 4th electric capacity; one the 3rd resistance; one the 4th resistance; one the 5th resistance; one the 6th resistance; one first diode; one the first transistor and one first inductance; this the first transistor has an avalanche diode; the positive pole of this avalanche diode connects the drain electrode of this first transistor; the negative pole of this avalanche diode connects the source electrode of this first transistor; in order to the big electric current of conducting to protect this first transistor; this DC-DC converter has the step-down translation function and has eight pins; be respectively one first pin to an octal, the connected mode of this step-down converting unit comprises:
The crus secunda of this DC-DC converter and the 4th pin are ground connection;
The 6th pin of this DC-DC converter is the power input of DC-DC converter and is connected to the current limliting voltage source;
The 7th pin of this DC-DC converter connects first output of this current limliting unit;
The 3rd resistance is connected in series with the 4th resistance, and the 3rd resistance is connected the grid of this first transistor with a string contact of the 4th resistance, a not end of serial connection of the 3rd resistance connects the source electrode of this first transistor, and a not end of serial connection of the 4th resistance connects first pin and the octal of this direct current transducer;
The drain electrode of this first transistor connects the negative pole of this first diode and an end of this first inductance, and provides this shows signal to this display unit that charges;
The 5th pin of this DC-DC converter connects the 5th resistance of serial connection and a string contact of the 6th resistance, a not end of serial connection of the 5th resistance is a ground connection, and a not end of serial connection of the 6th resistance connects the other end of this first inductance and an end of the 3rd electric capacity, and provides this low-tension supply to this super electrode capacitance; And
The other end of the 3rd electric capacity is a ground connection, and the tripod of this DC-DC converter connects an end of the 4th electric capacity, and the other end of the 4th electric capacity is a ground connection.
31. quick charge device as claimed in claim 20, it is characterized in that: this Current limited Control unit comprises one the 8th resistance and one the 9th resistance of one the 3rd transistor and serial connection, the 3rd transistor has an avalanche diode, the positive pole of this avalanche diode connects the 3rd transistor drain, the negative pole of this avalanche diode connects the 3rd transistorized source electrode, in order to the big electric current of conducting to protect the 3rd transistor; The 3rd transistorized grid connects a string contact of the 8th resistance and the 9th resistance, a not end of serial connection of the 8th resistance connects this current limliting voltage source, a not end of serial connection of the 9th resistance connects the anode of this super capacitor, the 3rd transistorized source electrode is first output of this Current limited Control unit, and connect the first input end of this current limliting unit, and the 3rd transistor drain is second output of this Current limited Control unit, and connects the source electrode of this first transistor in this step-down converting unit and first output of this current limliting unit.
32. a fast charge method, in order to by a current limliting voltage source one super capacitor is charged, it is characterized in that: this method comprises:
Utilize a current limliting unit receiving this current limliting voltage source, and produce a current limliting power supply signal, and this current limliting unit tool one first input end and one first output;
Utilize a step-down converting unit that this current limliting piezoelectric voltage source step-down is produced a low-tension supply, and generation corresponds to a shows signal of this low-tension supply, this low-tension supply connects this super capacitor, in order to a charging current to be provided this super capacitor is carried out quick charge;
Utilize a charging display unit, receive this shows signal, to show a charge information of the charged state of representing this super capacitor;
Utilize the voltage of a Current limited Control unit, and produce a Current limited Control signal with this super capacitor of sensing;
Utilize this current limliting unit to receive this Current limited Control signal, be supplied to the current limliting power supply signal of this step-down converting unit in order to adjusting, this Current limited Control unit also has one first output and one second output, connects the first input end and first output of this current limliting unit respectively; And
After finishing charging super capacitor is separated from;
Wherein this current limliting voltage source has a maximum output current, and this fast charge method continues to draw the maximum output current of this current limliting voltage source in the process that this super capacitor is charged.
33. fast charge method as claimed in claim 32 is characterized in that: this current limliting voltage source is the voltage source of serial bus (USB), and with an end be that the other end of one first electric capacity, one second electric capacity and a filter resistance of ground connection is connected in parallel.
34. fast charge method as claimed in claim 32, it is characterized in that: this current limliting unit comprises one first resistance and one second resistance of serial connection, a not end of serial connection of this first resistance connects this current limliting voltage source, a string contact of this first resistance and this second resistance is this first input end, and a not end of serial connection of this second resistance is this first output.
35. fast charge method as claimed in claim 32; it is characterized in that: this step-down converting unit comprises and flow to direct current transducer (DC-DC Converter) always; one the 3rd electric capacity; one the 4th electric capacity; one the 3rd resistance; one the 4th resistance; one the 5th resistance; one the 6th resistance; one first diode; one the first transistor and one first inductance; this the first transistor has an avalanche diode; the positive pole of this avalanche diode connects the drain electrode of this first transistor; the negative pole of this avalanche diode connects the source electrode of this first transistor; in order to the big electric current of conducting to protect this first transistor; this DC-DC converter has the step-down translation function and has eight pins; be respectively one first pin to an octal, the connected mode of this step-down converting unit comprises:
The crus secunda of this DC-DC converter and the 4th pin are ground connection;
The 6th pin of this DC-DC converter is the power input of DC-DC converter and is connected to the current limliting voltage source;
The 7th pin of this DC-DC converter connects first output of this current limliting unit;
The 3rd resistance is connected in series with the 4th resistance, and the 3rd resistance is connected the grid of this first transistor with a string contact of the 4th resistance, a not end of serial connection of the 3rd resistance connects the source electrode of this first transistor, and a not end of serial connection of the 4th resistance connects first pin and the octal of this direct current transducer;
The drain electrode of this first transistor connects the negative pole of this first diode and an end of this first inductance, and provides this shows signal to this display unit that charges;
The 5th resistance that the 5th pin of this DC-DC converter connects serial connection is connected in series a little with one of the 6th resistance, a not end of serial connection of the 5th resistance is a ground connection, and a not end of serial connection of the 6th resistance connects the other end of this first inductance and an end of the 3rd electric capacity, and provides this low-tension supply to this super capacitor; And
The other end of the 3rd electric capacity is a ground connection, and the tripod of this DC-DC converter connects an end of the 4th electric capacity, and the other end of the 4th electric capacity is a ground connection.
36. fast charge method as claimed in claim 32, it is characterized in that: this Current limited Control unit comprises one the 8th resistance and one the 9th resistance of one the 3rd transistor and serial connection, the 3rd transistor has an avalanche diode, the positive pole of this avalanche diode connects the 3rd transistor drain, the negative pole of this avalanche diode connects the 3rd transistorized source electrode, in order to the big electric current of conducting to protect the 3rd transistor; The 3rd transistorized grid connects a string contact of the 8th resistance and the 9th resistance, a not end of serial connection of the 8th resistance connects this current limliting voltage source, a not end of serial connection of the 9th resistance connects the anode of this super capacitor, the 3rd transistorized source electrode is first output of this Current limited Control unit, and connect the first input end of this current limliting unit, and the 3rd transistor drain is second output of this Current limited Control unit, and connects the source electrode of this first transistor in this step-down converting unit and first output of this current limliting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100419457A CN101997342A (en) | 2009-08-19 | 2009-08-19 | Quick charging device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100419457A CN101997342A (en) | 2009-08-19 | 2009-08-19 | Quick charging device and method |
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|---|---|
| CN101997342A true CN101997342A (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100419457A Pending CN101997342A (en) | 2009-08-19 | 2009-08-19 | Quick charging device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015074378A1 (en) * | 2013-11-19 | 2015-05-28 | 惠州Tcl移动通信有限公司 | Quick charging terminal |
| CN104917377A (en) * | 2014-03-11 | 2015-09-16 | 精工电子有限公司 | Dc/dc converter |
| CN108511009A (en) * | 2017-02-24 | 2018-09-07 | 阿自倍尔株式会社 | Memory power supply circuit, control device and memory power supply method |
| CN110190654A (en) * | 2019-06-27 | 2019-08-30 | 季华实验室 | High-power charging circuit and device |
-
2009
- 2009-08-19 CN CN2009100419457A patent/CN101997342A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015074378A1 (en) * | 2013-11-19 | 2015-05-28 | 惠州Tcl移动通信有限公司 | Quick charging terminal |
| US9509160B2 (en) | 2013-11-19 | 2016-11-29 | Huizhou Tcl Mobile Communication Co., Ltd. | Fast charging terminal |
| CN104917377A (en) * | 2014-03-11 | 2015-09-16 | 精工电子有限公司 | Dc/dc converter |
| CN104917377B (en) * | 2014-03-11 | 2018-12-28 | 艾普凌科有限公司 | DC/DC converter |
| CN108511009A (en) * | 2017-02-24 | 2018-09-07 | 阿自倍尔株式会社 | Memory power supply circuit, control device and memory power supply method |
| CN110190654A (en) * | 2019-06-27 | 2019-08-30 | 季华实验室 | High-power charging circuit and device |
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