CN202931011U - High-efficiency rapid charging type intelligent mobile power supply self-adaptive to AC adapter - Google Patents
High-efficiency rapid charging type intelligent mobile power supply self-adaptive to AC adapter Download PDFInfo
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- CN202931011U CN202931011U CN 201220513103 CN201220513103U CN202931011U CN 202931011 U CN202931011 U CN 202931011U CN 201220513103 CN201220513103 CN 201220513103 CN 201220513103 U CN201220513103 U CN 201220513103U CN 202931011 U CN202931011 U CN 202931011U
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- charging
- discharge
- isolating switch
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Abstract
The utility model relates to a high-efficiency rapid charging type intelligent mobile power supply self-adaptive to an AC adapter. An input circuit, a charging circuit, a charging isolation switch circuit, a chargeable cell, a discharge energy-storage inductor, a discharge boosting module group, a discharging isolation switch circuit, an output circuit, a plug-and-play detection voltage amplifier circuit and an input voltage detecting circuit are sequentially connected, wherein the charging/discharging isolation switch circuit is formed by connecting a P-channel MOS tube and a negative voltage generating circuit, and generated negative voltage enables reliable connection of the P-channel MOS tube; the plug-and-play detection voltage amplifier circuit is a voltage amplifier circuit composed of a PNP triode and identifies existence of load; and the input voltage detecting circuit connects an A/D port of a single-chip microcomputer with the input circuit, and obtained input voltage value is compared with a threshold voltage value to control input current, so that the AC adapter is not overloaded.
Description
Affiliated technical field
The utility model belongs to electronic technology, charging technique field, relates to a kind of rechargeable type power-supply device.
Background technology
At present, known portable power source is in order to shorten the charging interval, realize quick charge, will strengthen the electric current to the battery charging, normally 1000 milliamperes or more than, existing charging circuit is to adopt linear IC charging, or adopts the buck DC-DC charging, then or adopt the P channel MOS tube to do the isolated tube pulse current charge; In order to realize intelligently will increasing the plug and play measuring ability, existing plug and play measuring ability is to adopt current amplification circuit to detect, the cell-phone charging mouth is wired to the output circuit of portable power source, the internal resistance of cell-phone charging mouth drags down the output circuit of portable power source, the plug and play testing circuit of portable power source detects and will wake MCU up after output circuit is dragged down, and makes booster circuit output 5V voltage to cell-phone charging; But, existing technology when charging exist the serious problem of device heating, problem with high costs, can not compatible little electric current AC adapter problem, plug and play detect sensitive not problem.
Adopt linear IC charging that the problem of device heating is arranged: according to formula P=U*I, the power of linear IC autophage can be up to 4 watts, and heat is full of narrow and small portable power source inner space and can't scatters, and has a strong impact on the life-span of electronic device and battery.
The pulse current charge that adopts the P channel MOS tube to do isolated tube has the problem of device heating equally: pulse current charge needs an isolated tube to complete the effect of playing the isolation and protection battery when not having Voltage-output or output short-circuit because of AC adapter; When doing isolated tube with the P channel MOS tube, according to the VGS﹠amp of P channel MOS tube; The RDS characteristic, the VGS of existing P channel MOS tube-could realize little RDS conducting resistance below 4.5V, own loss could reduce; The battery of portable power source is mostly at 3.7V, when electric weight is not enough, voltage may be low to moderate 3V, the VGS voltage that is added to the P channel MOS tube this moment is-3V, do not reach the requirement of normal working voltage-4.5V, conducting resistance RDS doubly increases exponentially, thereby P channel MOS tube self power loss will be increased sharply and caused cause thermal damage until burn; Therefore, the isolated tube of making charging circuit with the P channel MOS tube simply is to realize large electric current quick charge.
Adopt the buck DC-DC charging to have circuit complicated, problem with high costs, portable power source is carry-on light product, complicated buck DC-DC charging circuit can increase the area of pcb board, also increase the volume that moves electronic source, cost also increases thereupon simultaneously, can not reach economical and light principle.
The portable power source of existing large electric current quick charge is incompatible little electric current AC adapter all, as charging may cause the AC adapter protection or damage to portable power source with little electric current AC adapter by force, therefore existing portable power source needs the large electric current AC adapter of configure dedicated; Mobile phone AC adapter in consumer family is that the little current mode of hundreds of milliampere can not be charged to portable power source, if the consumer can not find for the moment the AC adapter of special-purpose large electric current also can't to the portable power source emergent charging, inconvenience be arranged more; Moreover, the little electric current AC adapter of a plurality of digital products may be arranged in consumer's hand, but all can not charge to portable power source, this just can not reach the effect of making the best use of everything.
Existing portable power source plug and play testing circuit adopts the triode electric current to amplify mode, and detection sensitivity is low; The part mobile phone is arranged, the internal resistance of charge port of for example associating mobile phone is larger, after inserting, the output circuit of portable power source only is pulled low to the cell voltage of three minutes two, MCU is not waken up because enough low threshold voltages not detected, so it is that limitation is arranged that existing portable power source uses triode electric current amplification mode to do the plug and play measuring ability, make the large mobile phone of part charge port internal resistance therefore can not realize plug-and-play feature.
The utility model content
For overcome existing portable power source have when the large electric current quick charge device heating problem, problem with high costs, can not compatible little electric current AC adapter problem, plug and play detect sensitive not problem, the utility model adopts a kind of portable power source, this portable power source can large electric current, fast, charging expeditiously, cost is low, AC adapter emergent charging that can compatible little electric current, highly sensitive plug and play measuring ability.
The technical scheme that its technical problem that solves the utility model adopts is: input circuit, charging circuit, charging isolating switch circuit, rechargeable battery, discharge energy storage inductance, discharge are boosted in circuit, and module, discharge isolating switch circuit, output circuit, plug and play detect voltage amplifier circuit, input voltage detection circuit sequentially is electrically connected to; It is characterized in that: an end of charging isolating switch circuit is connected with single-chip microcomputer one PWM mouth, one end of discharge isolating switch circuit discharges end with the energy of discharge energy storage inductance and is connected, plug and play detects voltage amplifier circuit and is connected with single-chip microcomputer one I/O mouth, and input circuit is connected with single-chip microcomputer one A/D mouth.Namely, make switch in buffer circuit with the P channel MOS tube, and a negative voltage generating circuit is set; The P channel MOS can two or more parallel connections; In input voltage detection circuit, single-chip microcomputer one A/D mouth is set; Detect in voltage amplifier circuit in plug and play a positive-negative-positive triode is set, plug and play detects voltage amplifier circuit and is realized by the cascode voltage amplifier circuit that the positive-negative-positive triode forms.Charging isolating switch circuit, discharge isolating switch circuit can be that N-channel MOS can two or more parallel connections, and this moment, booster circuit provided positive voltage for the N-channel MOS pipe.
P channel MOS tube grid is connected with negative voltage generating circuit one end, and the negative voltage generating circuit other end is connected with a PWM mouth of single-chip microcomputer; Make that in input voltage detection circuit, an A/D mouth of single-chip microcomputer is connected with input circuit; Make plug and play detect voltage amplifier circuit one end and be connected with output circuit, the other end is connected with an I/O mouth of single-chip microcomputer.
When the pwm pulse of single-chip microcomputer is applied to negative voltage generating circuit, P channel MOS tube grid will obtain-5V or lower negative value gate voltage, so the P channel MOS tube will obtain abundant conducting, this moment the P channel MOS tube VGS﹠amp; Can find in the RDS property list, the RDS conducting resistance is below 20 milliohms, can calculate thus P channel MOS tube own loss Mrs and reduce, its power consumption reliably working in critical field when the P channel MOS tube flows through large electric current reaches the purpose of the efficient quick charge of large electric current; When the A/D mouth of MCU detects by input circuit the charging voltage that AC adapter applies, the A/D mouth obtains input voltage value and will compare with the threshold voltage value that arranges, during higher than threshold voltage, MCU increases charging current to satisfy the requirement of quick charge by adjusting pulse PWM, reduce charging current to protect little electric current AC adapter to be unlikely to close output because of overload less than or equal to threshold voltage MCU by adjusting pulse PWM, reach the purpose of compatible little electric current AC adapter; After the charge port of the digital products such as mobile phone is wired to output circuit, the internal resistance of cell-phone charging mouth drags down output circuit, plug and play detects the pulse that voltage amplifier circuit will the voltage amplification sudden change, pulse after voltage amplification will obviously increase MCU and wake sensitivity up, begin to export 5V to cell-phone charging after MCU is waken up by sleep state.
The beneficial effects of the utility model are, can realize that more than 2000mA, large electric current high efficiency is to the portable power source quick charge with lower cost, AC adapter that also can compatible little electric current is charged to portable power source, facilitate the consumer to utilize AC adapter at hand, and do not need to repeat to purchase, reach the purpose of making the best use of everything; Highly sensitive plug and play detects voltage amplifier circuit can make portable power source strengthen its intelligent effect; Negative voltage generating circuit and plug and play detect voltage amplifier circuit and adopt diode, triode, electric capacity, resistive element, and cost is low, and is simple in structure, and A/D mouth and PWM mouth are built-in by MCU.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is that the utility model is made the circuit diagram of isolating switch of the N-channel MOS pipe.
Fig. 2 is that the utility model is made the circuit diagram of isolating switch of the P channel MOS tube.
Fig. 3 is P channel MOS tube VGS﹠amp; The performance plot of RDS.
Fig. 4 is the moving power circuit diagram of the title of prior art.
In Fig. 1: 101. input circuits, 102. charging circuits, 103. charging isolating switch circuit, 104. rechargeable battery, 105. discharge energy storage inductance, the 106. discharges module that boosts, 107. discharge isolating switch circuit, 108. output circuits, 109. plug and play detect voltage amplifier circuit, 110. single-chip microcomputer, 111. booster circuits, 112.N channel MOS tube, 113. booster circuit, 114.N channel MOS tube, 115.PNP type triode, 116. input voltage detection circuits.
In Fig. 1, charging isolating switch circuit (103) is comprised of N-channel MOS pipe (112) and booster circuit (111).
In Fig. 1, discharge isolating switch circuit (107) is comprised of N-channel MOS pipe (114) and booster circuit (113).
In Fig. 1, single-chip microcomputer (110) is with A/D conversion mouth and pulse PWM mouth.
In Fig. 2: 201. input circuits, 202. charging circuits, 203. charging isolating switch circuit, 204. rechargeable battery, 205. discharge energy storage inductance, the 206. discharges module that boosts, 207. discharge isolating switch circuit, 208. output circuits, 209. plug and play detect voltage amplifier circuit, 210. single-chip microcomputer, 211. negative voltage generating circuits, 212.P channel MOS tube, 213. negative voltage generating circuit, 214.P channel MOS tube, 215.PNP type triode, 216. input voltage detection circuits.
In Fig. 2, charging isolating switch circuit (203) is comprised of P channel MOS tube (212) and negative voltage generating circuit (211).
In Fig. 2, discharge isolating switch circuit (207) is comprised of P channel MOS tube (214) and negative voltage generating circuit (213).
In Fig. 2, single-chip microcomputer (210) is with A/D conversion mouth and pulse PWM mouth.
Embodiment
In Fig. 2, input circuit (201), charging circuit (202), charging isolating switch circuit (203) are connected with rechargeable battery (204), the grid G of P channel MOS tube (212) is connected with negative voltage generating circuit (211) one ends, negative voltage generating circuit (211) other end is connected with single-chip microcomputer (210) one PWM mouths, the drain D of P channel MOS tube (212) is connected with charging circuit, and the source S of P channel MOS tube (212) is connected with rechargeable battery (204); One end of input circuit (201) is connected with single-chip microcomputer (21O) A/D mouth; The discharge energy storage inductance (205), the discharge boost module (206), the discharge isolating switch circuit (207) connect with output circuit (208), the grid G of P channel MOS tube (214) is connected with an end of negative voltage generating circuit (213), the other end of negative voltage generating circuit (213) discharges end with the energy of discharge energy storage inductance (205) and is connected, the drain D of P channel MOS tube (214) is connected with output circuit (208), and the source S of P channel MOS tube (214) and the discharge module (206) that boosts is connected; The base stage B of positive-negative-positive triode (215) is connected with output circuit (208), and the collector electrode C of positive-negative-positive triode (215) is connected with single-chip microcomputer (210) one I/O mouths.
In another embodiment of Fig. 1: input circuit (101), charging circuit (102), charging isolating switch circuit (103) are connected with rechargeable battery (104), the grid G of N-channel MOS pipe (112) is connected with booster circuit (111) one ends, booster circuit (111) other end is connected with single-chip microcomputer (110) one PWM mouths, the source S of N-channel MOS pipe (112) is connected with charging circuit, and the drain D of N-channel MOS pipe (112) is connected with rechargeable battery (104); One end of input circuit (101) is connected with single-chip microcomputer (110) one A/D mouths; The discharge energy storage inductance (105), the discharge boost module (106), the discharge isolating switch circuit (107) connect with output circuit (108), the grid G of N-channel MOS pipe (114) is connected with an end of booster circuit (113), the other end of booster circuit (113) discharges end with the energy of discharge energy storage inductance (105) and is connected, the source S of N-channel MOS pipe (114) is connected with output circuit (108), and the drain D of N-channel MOS pipe (114) and the discharge module (106) that boosts is connected; The base stage B of positive-negative-positive triode (115) is connected with output circuit (108), and the collector electrode C of positive-negative-positive triode (115) is connected with single-chip microcomputer (110) one I/O mouths.
Claims (9)
1. the Intelligent movable power supplies of a quick charge type self adaptation AC adapter, input circuit, charging circuit, charging isolating switch circuit, rechargeable battery, discharge energy storage inductance, discharge are boosted in circuit, and module, discharge isolating switch circuit, output circuit, plug and play detect voltage amplifier circuit, input voltage detection circuit sequentially is electrically connected to; It is characterized in that: an end of charging isolating switch circuit is connected with single-chip microcomputer one PWM mouth, one end of discharge isolating switch circuit discharges end with the energy of discharge energy storage inductance and is connected, plug and play detects voltage amplifier circuit and is connected with single-chip microcomputer one I/O mouth, and input circuit is connected with single-chip microcomputer one A/D mouth.
2. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1, it is characterized in that: charging isolating switch circuit is comprised of P channel MOS tube and negative voltage generating circuit, and negative voltage generating circuit produces negative voltage by the pulse PWM of single-chip microcomputer.
3. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1, it is characterized in that: discharge isolating switch circuit is comprised of P channel MOS tube and negative voltage generating circuit, and negative voltage generating circuit is produced negative voltage by the boost pulse of module of discharge.
4. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1, its feature can be: charging isolating switch circuit is comprised of N-channel MOS pipe and booster circuit, and booster circuit produces positive voltage by the pulse PWM of single-chip microcomputer.
5. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1, its feature can be: discharge isolating switch circuit is comprised of N-channel MOS pipe and booster circuit, and booster circuit produces positive voltage by the boost pulse of module of discharge.
6. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1, it is characterized in that: input circuit is connected with single-chip microcomputer one A/D mouth, and the input voltage value that the sampling of A/D mouth obtains will compare with the threshold voltage value of setting.
7. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1 is characterized in that: plug and play detects voltage amplifier circuit and is realized by the cascode voltage amplifier circuit that the positive-negative-positive triode forms.
8. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1, its feature can be: the P channel MOS can two or more parallel connections.
9. the Intelligent movable power supplies of quick charge type self adaptation AC adapter according to claim 1, its feature can be: N-channel MOS can two or more parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513103 CN202931011U (en) | 2012-10-08 | 2012-10-08 | High-efficiency rapid charging type intelligent mobile power supply self-adaptive to AC adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513103 CN202931011U (en) | 2012-10-08 | 2012-10-08 | High-efficiency rapid charging type intelligent mobile power supply self-adaptive to AC adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931011U true CN202931011U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220513103 Expired - Fee Related CN202931011U (en) | 2012-10-08 | 2012-10-08 | High-efficiency rapid charging type intelligent mobile power supply self-adaptive to AC adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162178A (en) * | 2021-04-27 | 2021-07-23 | 深圳市阳邦兴业智能科技有限公司 | Detection protection and control system with charging function |
-
2012
- 2012-10-08 CN CN 201220513103 patent/CN202931011U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162178A (en) * | 2021-04-27 | 2021-07-23 | 深圳市阳邦兴业智能科技有限公司 | Detection protection and control system with charging function |
| CN113162178B (en) * | 2021-04-27 | 2024-05-24 | 深圳市阳邦兴业智能科技有限公司 | Detection protection and control system with charging function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Deng Guowen Document name: Notification of Passing Examination on Formalities |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20161008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |