CN104079026B - Charging device - Google Patents
Charging device Download PDFInfo
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- CN104079026B CN104079026B CN201410113789.1A CN201410113789A CN104079026B CN 104079026 B CN104079026 B CN 104079026B CN 201410113789 A CN201410113789 A CN 201410113789A CN 104079026 B CN104079026 B CN 104079026B
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- voltage
- power supply
- control circuit
- secondary battery
- charging
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- 238000012544 monitoring process Methods 0.000 claims description 49
- 230000002265 prevention Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000007792 addition Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
A kind of charging device, it is characterised in that: there is the main power source device being charged secondary cell by supply voltage；And in parallel with this main power source device and that by described supply voltage, described secondary cell is charged auxiliary power device.Wherein, described main power source device is charged in Given current controller mode when the voltage of described secondary cell is below the 1st setting voltage set in advance, is charged determining voltage control mode when becoming greater than described 1 setting voltage；Described auxiliary power device stops when the voltage of described secondary cell becomes greater than 2 setting voltage being charged, and the 2nd setting voltage is less than described 1st setting voltage.
Description
Technical Field
The present invention relates to a charging device that charges, for example, a secondary battery.
Background
Conventionally, a charging device including a master charger and a slave charger connected in parallel to the master charger is known (see patent document 1).
In the above charging device, the main charger converts an alternating current into a direct current and outputs the direct current as a main output current to charge the battery, and the sub-charger also converts an alternating current into a direct current and outputs the direct current as a sub-output current to charge the battery.
In the above-described charging device, when the battery voltage is charged to a predetermined voltage, the constant current control is switched to the constant voltage control so as to reduce the main output current and the sub output current output from the main charger and the sub charger. Finally, the battery is charged only by the main charger, whereby the battery is brought to a fully charged state.
[ Prior art documents ]
[ patent document ]
[ patent document 1 ] (Japanese patent application laid-open No. 2011-
Disclosure of Invention
[ problems to be solved by the invention ]
However, in the above charging device, since the master charger controls the slave charger based on the output current, there is a problem that a complicated controller needs to be used.
The invention aims to provide a charging device which can perform high-precision charging with a simple structure.
[ means for solving problems ]
According to one aspect of the present invention, there is provided a charging device including: a main power supply device for charging the secondary battery with a power supply voltage; and a secondary power supply device connected in parallel with the main power supply device and charging the secondary battery with the power supply voltage. The charging device is characterized in that:
the main power supply device performs charging by constant current control when the voltage of the secondary battery is less than or equal to a preset 1 st set voltage, and performs charging by constant voltage control when the voltage of the secondary battery is greater than the 1 st set voltage,
the secondary power supply device stops charging when the voltage of the secondary battery becomes greater than a preset 2 nd set voltage, the 2 nd set voltage being smaller than the 1 st set voltage.
[ Effect of the invention ]
According to the present invention, high-precision charging can be performed with a simple configuration.
Brief description of the drawings
Fig. 1 is a block diagram showing a configuration of a charging device according to the present invention.
Fig. 2 is a block diagram showing the configuration of each power supply device constituting the charging device shown in fig. 1.
Fig. 3 is a circuit diagram showing a configuration of a battery monitoring circuit in detail.
FIG. 4 is a flowchart showing the operation of the charging device.
Fig. 5 is a diagram showing a relationship between a set voltage of each power supply device, a current of each power supply device, and a voltage of a secondary battery.
Fig. 6 is a circuit diagram showing the configuration of a battery monitoring circuit according to embodiment 2.
[ description of symbols ]
10 charging device
20 main power supply device
21 voltage control circuit
22 current control circuit
23 Battery monitoring Circuit
30 st 1 auxiliary power supply device
31 voltage control circuit
32 current control circuit
33 Battery monitoring Circuit
35 latch circuit (vibration prevention unit)
40 nd 2 nd secondary power supply device
41 voltage control circuit
42 current control circuit
43 Battery monitoring Circuit
45 latch circuit (vibration prevention unit)
50 rd 3 auxiliary power supply device
51 voltage control circuit
52 current control circuit
53 Battery monitoring Circuit
55 latch circuit (vibration prevention unit)
Modes for carrying out the invention
An example of an embodiment of a charging device according to the present invention will be described below with reference to the drawings.
[ examples ]
[ 1 st embodiment ]
Fig. 1 shows the structure of the charging device 10. In the charging device 10, for example, the secondary battery 12 is charged with a rectified and smoothed voltage (dc power supply voltage) output from the input unit 11 that rectifies and smoothes an ac voltage. The input unit 11 is a rectifying/smoothing circuit, but may be an adapter or the like that converts an ac voltage to a predetermined dc voltage. The secondary battery 12 is a chargeable battery or a capacitor.
The charging device 10 includes a main power supply device 20 and a plurality of 1 st, 2 nd, and 3 rd sub power supply devices 30, 40, and 50 connected in parallel to the main power supply device 20.
[ Main Power Source device ]
As shown in fig. 2, the main power supply device 20 includes: a voltage control circuit 21 for charging the secondary battery 12 at a constant voltage; a current control circuit 22 for charging the secondary battery with a constant current; a battery monitoring circuit 23 that detects the voltage of the secondary battery 12; a controller 24 for controlling the operations of the voltage control circuit 21 and the current control circuit 22 based on the voltage detected by the battery monitor circuit 23; and a latch circuit (vibration prevention unit) 25.
[ Battery monitoring Circuit 23 ]
As shown in fig. 3, the battery monitoring circuit 23 includes: resistors R1, R2 in series; a resistor group 23R connected in series with the resistor R2; and a comparator 27, etc. One terminal of the resistor R1 is grounded, and the other terminal of the resistor R2 is connected to one terminal of the resistor group 23R. The other terminal of the resistor group 23R is applied with a dc voltage Vcc of a dc power supply not shown.
A connection point a between the resistor R1 and the resistor R2 is connected to an inverting input terminal of the comparator 27, and the voltage of the secondary battery 12 is input to a non-inverting input terminal of the comparator 27.
The voltage at the connection point a between the resistor R1 and the resistor R2 is input to the inverting input terminal of the comparator 27 as a reference voltage (set voltage), and the comparator 27 compares the reference voltage with the voltage of the secondary battery 12, and outputs an H-level (high-level) signal when the voltage of the secondary battery 12 is equal to or higher than the reference voltage, and outputs an L-level (low-level) signal when the voltage is lower than the reference voltage.
The resistor group 23R includes: a plurality of resistors Rn 1-Rn 4 connected in series; and fuses f 1 to f 4 connected in parallel with the resistors Rn 1 to Rn 4. The value of the reference voltage can be arbitrarily set by cutting any of the fuses f 1 to f 4 with a laser beam. Here, the set voltage (1 st set voltage) Vb is set as the reference voltage.
The battery monitoring circuit 23 has a circuit similar to the above for setting the setting voltage Va (> Vb), and outputs an H-level signal when the voltage of the secondary battery 12 becomes equal to or higher than the reference voltage Va.
[ controller 24 ]
The controller 24 operates the current control circuit 22 when the detected voltage detected by the battery monitoring circuit 23 is lower than a preset set voltage Vb, and stops the operation of the current control circuit 22 and operates the voltage control circuit 21 when the detected voltage is equal to or higher than the set voltage Vb. The controller 24 stops the operation of the voltage control circuit 21 when the detected voltage detected by the battery monitoring circuit 23 is equal to or higher than a preset voltage Va (> Vb).
[ latch circuit 25 ]
The latch circuit 25 is configured to hold the state of stopping the operation of the current control circuit 22 and the state of performing the operation of the voltage control circuit 21 for a predetermined time when the controller 24 stops the operation of the current control circuit 22 and operates the voltage control circuit 21. That is, when the operation (operation) is switched from the current control circuit 22 to the voltage control circuit 21, the latch circuit 25 holds the H-level signal output from the comparator 27 for a predetermined time, thereby preventing the operation from being switched from the voltage control circuit 21 to the current control circuit 22 again within the predetermined time.
[ 1 st auxiliary power supply device ]
The 1 st sub power supply device 30 includes: a voltage control circuit 31 for charging the secondary battery 12 at a constant voltage; a current control circuit 32 for charging the secondary battery 12 with a constant current; a battery monitoring circuit 33 for detecting the voltage of the secondary battery 12; a controller (sub-controller) 34 for controlling the operations of the voltage control circuit 31 and the current control circuit 32 based on the voltage detected by the battery monitoring circuit 33; and a latch circuit (vibration prevention unit) 35.
In the present embodiment, only the current control circuit 32 is operated (operated), but only the voltage control circuit 31 may be operated, or either one of them may be set to be operated. Since the 2 nd and 3 rd subsidiary power supply devices 40 and 50 are also the same, their description is omitted.
[ Battery monitoring Circuit 33 ]
The battery monitoring circuit 33 is configured by a circuit similar to that of fig. 3, and cuts off the corresponding fuses f 1 to f 4 in order to input a set voltage (charge stop voltage) Vc (< Vb) as a reference voltage to the inverting input terminal of the comparator 27.
The battery monitoring circuit 33 outputs an L-level signal when the voltage of the secondary battery 12 is lower than the set voltage (2 nd set voltage) Vc, and outputs an H-level signal when the voltage becomes equal to or higher than the set voltage Vc.
[ controller 34 ]
The controller 34 operates the current control circuit 32 when the detected voltage detected by the battery monitoring circuit 33 is less than a preset set voltage Vc (< Vb), and stops the operation of the current control circuit 32 when the detected voltage is equal to or higher than the set voltage Vc. That is, the controller 34 operates the current control circuit 32 when the L-level signal is output from the battery monitoring circuit 33, and stops the operation of the current control circuit 32 when the H-level signal is output.
[ latch circuit 35 ]
When the battery monitoring circuit 33 outputs the H-level signal, the latch circuit 35 holds the H-level signal for a predetermined time, thereby maintaining the stop of the operation of the current control circuit 32 for the predetermined time.
[ 2 nd subsidiary Power supply device ]
The 2 nd sub power supply device 40 includes: a voltage control circuit 41 for charging the secondary battery 12 at a constant voltage; a current control circuit 42 for charging the secondary battery 12 with a constant current; a battery monitoring circuit 43 that detects the voltage of the secondary battery 12; a controller (sub-controller) 44 for controlling the operations of the voltage control circuit 41 and the current control circuit 42 based on the voltage detected by the battery monitor circuit 43; and a latch circuit (vibration prevention unit) 45.
[ Battery monitoring circuit 43 ]
The battery monitoring circuit 43 outputs an L-level signal when the voltage of the secondary battery 12 is lower than a set voltage (2 nd set voltage) Vd (< Vc), and outputs an H-level signal when the voltage becomes equal to or higher than the set voltage Vd. The battery monitor circuit 43 has the same configuration as the battery monitor circuit 33, and therefore, the detailed description thereof is omitted.
[ controller 44 ]
The controller 44 operates the current control circuit 42 when the detected voltage detected by the battery monitoring circuit 43 is lower than a preset set voltage Vd, and stops the operation of the current control circuit 42 when the detected voltage is equal to or higher than the set voltage Vd. That is, the controller 44 operates the current control circuit 42 when the L-level signal is output from the battery monitoring circuit 43, and stops the operation of the current control circuit 42 when the H-level signal is output.
[ latch circuit 45 ]
The latch circuit 45 holds the H-level signal for a predetermined time when the battery monitor circuit 43 outputs the H-level signal, thereby maintaining the stop of the operation of the current control circuit 42 for the predetermined time.
[ 3 rd auxiliary power supply device ]
The 3 rd sub power supply device 50 includes: a voltage control circuit 51 for charging the secondary battery 12 at a constant voltage; a current control circuit 52 for charging the secondary battery 12 with a constant current; a battery monitoring circuit 53 that detects the voltage of the secondary battery 12; a controller (sub-controller) 54 for controlling the operations of the voltage control circuit 51 and the current control circuit 52 based on the voltage detected by the battery monitoring circuit 53; and a latch circuit (vibration prevention unit) 55.
[ Battery monitoring circuit 53 ]
The battery monitoring circuit 53 outputs an L-level signal when the voltage of the secondary battery 12 is less than a set voltage (charge stop voltage) Ve (< Vd), and outputs an H-level signal when the voltage becomes equal to or greater than the set voltage (2 nd set voltage) Ve. The battery monitoring circuit 53 has the same configuration as the battery monitoring circuit 33, and thus, the detailed description thereof is omitted.
[ controller 54 ]
The controller 54 operates the current control circuit 52 when the detected voltage detected by the battery monitoring circuit 53 is lower than a preset voltage Ve, and stops the operation of the current control circuit 52 when the detected voltage is equal to or higher than the preset voltage Ve. That is, the controller 54 operates the current control circuit 52 when the battery monitoring circuit 53 outputs an L-level signal, and stops the operation of the current control circuit 52 when the battery monitoring circuit 53 outputs an H-level signal.
[ latch circuit 55 ]
The latch circuit 55 holds the H-level signal for a predetermined time when the battery monitor circuit 53 outputs the H-level signal, thereby maintaining the stop of the operation of the current control circuit 52 for the predetermined time.
[ actions ]
Next, the operation of the charging device 10 configured as described above will be described with reference to a flowchart shown in fig. 4. Here, the following description is given of the case where the voltage of the secondary battery 12 when the secondary battery 12 is discharged until the battery remaining amount becomes only a small amount is V0 (< Ve).
In step 1, the secondary battery 12 is charged by the main power supply device 20 and the 1 st, 2 nd, and 3 rd sub power supply devices 30, 40, and 50 of the charging device 10. That is, the current control circuit 22 of the main power supply device 20 operates to charge the secondary battery 12 with a constant current, and the current control circuits 32, 42, and 52 of the 1 st, 2 nd, and 3 rd sub power supply devices 30, 40, and 50 operate to charge the secondary battery 12 with a constant current. In other words, as shown in the diagram of fig. 5, at time t 1, the 4 power supply devices 20 to 50 start charging the secondary battery 12. Since the secondary battery 12 is charged by 4 power supply devices 20 to 50, high-speed charging can be performed. By this charging, the voltage of the secondary battery 12 gradually rises with the passage of time.
In step 2, it is determined whether or not the voltage of the secondary battery 12 during charging has reached the set voltage Ve. If no, returning to the step 2; until the voltage of the secondary battery 12 reaches Ve, the process of step 2 is repeatedly executed. When the voltage of the secondary battery 12 becomes Ve, an H-level signal is output from the battery monitoring circuit 53 of the 3 rd subsidiary power supply device 50; if the judgment in the step 2 is yes, the procedure goes to a step 3.
In step 3, the controller 54 stops the operation of the current control circuit 52 based on the H-level signal output from the battery monitoring circuit 53 to stop the charging of the 3 rd secondary power supply device 50 (time t 2 in fig. 5). In addition, the latch circuit 55 can hold the H-level signal output from the battery monitoring circuit 53 for a predetermined time.
The current for charging the secondary battery 12 decreases by the stop of the operation of the current control circuit 52, and as a result, the voltage of the secondary battery 12 may temporarily fall below the set voltage Ve due to the internal resistance. However, since the latch circuit 55 can hold the H-level signal for a predetermined time, the controller 54 does not operate the current control circuit 52. Accordingly, the 3 rd sub power supply device 50 can be prevented from vibrating to repeatedly and alternately perform the charging stop and the charging start. That is, the 3 rd subsidiary power supply device 50 can be in a steady state.
In step 4, the secondary battery 12 continues to be charged by the main power supply device 20 and the 1 st and 2 nd sub-power supply devices 30 and 40.
In step 5, it is determined whether or not the voltage of the secondary battery 12 during charging has reached the set voltage Vd. If no, returning to the step 5; until the voltage of the secondary battery 12 becomes Vd, the process of step 5 is repeatedly executed. After the voltage of the secondary battery 12 becomes Vd, an H-level signal is output from the battery monitoring circuit 43 of the 2 nd sub power supply device 40; if the determination in step 5 is yes, the process proceeds to step 6.
In step 6, the controller 44 stops the operation of the current control circuit 42 based on the H-level signal output from the battery monitoring circuit 43 to stop the charging of the 2 nd sub power supply device 40 (time t 3 in fig. 5). In addition, the latch circuit 45 can hold the H-level signal output from the battery monitor circuit 43 for a predetermined time.
The current for charging the secondary battery 12 is reduced by the stop of the operation of the current control circuit 42, and the voltage of the secondary battery 12 may temporarily fall below the set voltage Vd due to the internal resistance, as described above. However, since the latch circuit 45 can hold the H-level signal for a predetermined time, the controller 44 does not operate (operate) the current control circuit 42. Accordingly, the 2 nd sub power supply device 40 can be prevented from a vibration state in which the charging stop and the charging start are repeatedly and alternately performed. That is, the 2 nd subsidiary power supply device 40 can be in a steady state.
In step 7, the secondary battery 12 continues to be charged by the main power supply apparatus 20 and the 1 st sub power supply apparatus 30.
In step 8, it is determined whether or not the voltage of the secondary battery 12 during charging has reached the set voltage Vc. If no, returning to the step 8; until the voltage of the secondary battery 12 becomes Vc, the process of step 8 is repeatedly executed. After the voltage of the secondary battery 12 becomes Vc, an H-level signal is output from the battery monitoring circuit 33 of the 1 st sub power supply device 30; if the judgment in step 8 is yes, the routine proceeds to step 9.
In step 9, the controller 34 stops the operation of the current control circuit 32 based on the H-level signal output from the battery monitoring circuit 33 to stop the charging of the 1 st secondary power supply device 30 (time t 4 in fig. 5). In addition, the latch circuit 35 can hold the H-level signal output from the battery monitor circuit 33 for a predetermined time.
The current for charging the secondary battery 12 is reduced by the stop of the operation of the current control circuit 32, and the voltage of the secondary battery 12 may temporarily fall below the set voltage Vc due to the internal resistance, as described above. However, since the latch circuit 35 can hold the H-level signal for a predetermined time, the controller 34 does not operate (operate) the current control circuit 32. Accordingly, the 1 st secondary power supply device 30 can be prevented from vibrating in a state in which the charging stop and the charging start are repeatedly and alternately performed. That is, the 1 st subsidiary power supply device 3 can be in a steady state.
In step 10, the secondary battery 12 is continuously charged only by the main power supply device 20.
In step 11, it is determined whether or not the voltage of the secondary battery 12 during charging has reached the set voltage V b. If no, returning to the step 11; until the voltage of the secondary battery 12 becomes Vb, the process of step 11 is repeatedly executed. After the voltage of the secondary battery 12 becomes Vb, an H-level signal is output from the battery monitoring circuit 23 of the main power supply device 20; if the judgment in step 11 is yes, the routine proceeds to step 12.
In step 12, the controller 24 stops the operation of the current control circuit 22 and starts the operation of the voltage control circuit 21 (time t 5 in fig. 5).
Further, when the operation is switched from the current control circuit 22 to the voltage control circuit 21, the latch circuit 25 of the main power supply device 20 can hold the H-level signal output from the comparator 27 for a predetermined time, and thereby, the operation can be prevented from being switched from the voltage control circuit 21 to the current control circuit 22 again within the predetermined time period. Thus, the voltage control circuit 21 and the current control circuit 22 can be in a stable state.
In step 13, it is determined whether or not the voltage of the secondary battery 12 during charging has reached the set voltage Va. If no, returning to the step 13; until the voltage of the secondary battery 12 becomes Va, the process of step 13 is repeatedly executed. In the processing operation of step 13, the charging current of the secondary battery 12 by the voltage control circuit 21 can be reduced as shown by a curve G1 in fig. 5, so that the secondary battery 12 can be charged with high accuracy to reach the fully charged state. In addition, since the secondary power supply devices 30 to 50 are used only for setting the set voltages Vc to Ve lower than the set voltage Vb of the main power supply device 20, the secondary power supply devices 30 to 50, that is, the charging device 10, have a simple configuration.
After the voltage of the secondary battery 12 is charged to the set voltage Va, the determination of step 13 is yes, and the controller 24 stops the operation of the voltage control circuit 21.
Thus, by stopping the operation of the current control circuits 52 to 22 of the power supply devices 50 to 20 at the respective times t 2 to t 5, the power supply devices 50 to 20 can be prevented from vibrating, and the power supply devices 50 to 20 can be prevented from being unstable due to mutual interference. In addition, since the secondary battery 12 is charged by the main power supply device 20 and the plurality of 1 st to 3 rd sub-power supply devices 30 to 50, high-speed charging is possible; further, since the capacity of each power supply device 20 to 50 can be reduced, a charging device which is inexpensive and can be reduced in size and weight can be provided.
[ example 2 ]
Fig. 6 shows a 2 nd embodiment of the battery monitor circuit 33 of the 1 st secondary power supply device 30. In the battery monitor circuit 133 according to embodiment 2, a resistor R3 is connected in series to a resistor R2 a, and a switching element Q1 is connected in parallel to the resistor R3. The reference voltage (charge stop voltage) Vc can be set by the resistors R1 a, R2 a, the resistor R3, and the like; when the voltage of the secondary battery 12 exceeds Vc, the controller 24 may turn on the switching element Q1 only for a predetermined time to lower the reference voltage Vc to a reference voltage Vc' (< Vc). Thus, a delay occurs between the reference voltage Vc and the reference voltage (charge start voltage) Vc'.
Accordingly, it is possible to prevent the current control circuit 32 from operating (operating) again after the charging operation of the current control circuit 32 is stopped. That is, the resistor R3 and the switching element Q1 constitute a vibration prevention unit.
Thus, in the 1 st sub power supply device 30 of embodiment 2, the latch circuit 35 need not be used.
Similarly, by providing the resistor R3 and the switching element Q1 in the battery monitoring circuits 43 and 53 of the 2 nd and 3 rd subsidiary power supply apparatuses 40 and 50, the latch circuits 35 to 55 do not need to be used in the 2 nd and 3 rd subsidiary power supply apparatuses 40 and 50.
Similarly, by providing the above-described resistor R3 and the switching element Q1 in the battery monitor circuit 23 of the main power supply device 20, the use of the latch circuit 25 is also unnecessary.
In the above embodiment, 3 secondary power supply devices 30 to 50 are provided, but 1 secondary power supply device may be provided, and the number thereof may be set to any number. In addition, although the secondary power supply devices 30 to 50 are designed to be charged by the current control circuits 32 to 52, they may be designed to be charged by the voltage control circuits 31 to 51.
Although the operations of the 3 sub power supply devices 30 to 50 are designed to be stopped in stages, if the operations are ended earlier than the main power supply device 20, the operations of the sub power supply devices 30 to 50 may be stopped at the same time by designing the set voltages to be the same.
The present invention is not limited to the above-described embodiments, and various modifications, additions and the like can be made without departing from the technical scope of the claims.
Claims (4)
1. A charging device, characterized by:
a main power supply device for charging the secondary battery with a power supply voltage; and a secondary power supply device connected in parallel with the primary power supply device and charging the secondary battery with the power supply voltage,
wherein,
the main power supply device performs charging in a constant current control manner when the voltage of the secondary battery is equal to or lower than a preset 1 st set voltage, and performs charging in a constant voltage control manner when the voltage of the secondary battery is higher than the 1 st set voltage,
the sub power supply device stops charging when the voltage of the secondary battery becomes greater than a 2 nd set voltage, the 2 nd set voltage being lower than the 1 st set voltage,
the secondary power supply devices are provided in plurality, and the 2 nd set voltage of each secondary power supply device is different from each other.
2. The charging device according to claim 1, wherein:
the main power supply device has a voltage control circuit that charges the secondary battery in a constant voltage control manner; a current control circuit for charging the secondary battery in a constant current control manner; a monitoring circuit for detecting a voltage of the secondary battery; and a controller for operating one of the voltage control circuit and the current control circuit based on the voltage detected by the monitoring circuit,
wherein,
the controller operates the current control circuit when the voltage detected by the monitoring circuit is equal to or lower than the 1 st set voltage, and operates the voltage control circuit when the voltage detected by the monitoring circuit is greater than the 1 st set voltage.
3. The charging device according to claim 2, wherein:
the secondary power supply device has a current control circuit for charging the secondary battery in a constant current control manner; and a sub-controller for operating or stopping the current control circuit according to the voltage of the secondary battery,
wherein,
the sub-controller causes the current control circuit to perform the operation when the voltage of the secondary battery is equal to or lower than the 2 nd set voltage set in advance, and stops the operation of the current control circuit when the voltage of the secondary battery becomes higher than the 2 nd set voltage.
4. A charging arrangement as claimed in claim 3, in which:
each secondary power supply device has a voltage control circuit for charging the secondary battery at a constant voltage; a monitoring circuit for detecting a voltage of the secondary battery; and a latch circuit for holding a stop state of the secondary power supply device for a predetermined time when charging by the secondary power supply device is stopped,
wherein,
which of the current control circuit and the voltage control circuit is to be operated can be set arbitrarily,
the sub-controller stops the operation of the current control circuit or the voltage control circuit when the voltage detected by the monitoring circuit is greater than the 2 nd set voltage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-073154 | 2013-03-29 | ||
| JP2013073154A JP6094327B2 (en) | 2013-03-29 | 2013-03-29 | Charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104079026A CN104079026A (en) | 2014-10-01 |
| CN104079026B true CN104079026B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410113789.1A Expired - Fee Related CN104079026B (en) | 2013-03-29 | 2014-03-25 | Charging device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6094327B2 (en) |
| CN (1) | CN104079026B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762883B (en) * | 2014-12-24 | 2019-09-06 | Oppo广东移动通信有限公司 | Method and electronic equipment for charging for electronic equipment |
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| KR100848297B1 (en) * | 2007-12-24 | 2008-07-25 | (주)시그넷시스템 | Charging device |
| JP5998957B2 (en) * | 2013-01-30 | 2016-09-28 | Tdk株式会社 | Charger |
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| CN101662162A (en) * | 2009-01-23 | 2010-03-03 | 深圳市福嘉太科技有限公司 | Current amplification quick charge circuit used for hand-hold electronic device |
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| CN201812901U (en) * | 2010-10-19 | 2011-04-27 | 胡姜平 | Cell module and charge module for charging cell module |
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| JP6094327B2 (en) | 2017-03-15 |
| JP2014197961A (en) | 2014-10-16 |
| CN104079026A (en) | 2014-10-01 |
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