CN204012807U - A kind of chargeable multiple power supplies output - Google Patents

A kind of chargeable multiple power supplies output Download PDF

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Publication number
CN204012807U
CN204012807U CN201420340831.9U CN201420340831U CN204012807U CN 204012807 U CN204012807 U CN 204012807U CN 201420340831 U CN201420340831 U CN 201420340831U CN 204012807 U CN204012807 U CN 204012807U
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CN
China
Prior art keywords
voltage
circuit
booster circuit
lithium cell
output port
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Application number
CN201420340831.9U
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Chinese (zh)
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何应中
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何应中
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Priority to CN201420340831.9U priority Critical patent/CN204012807U/en
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Abstract

The utility model provides a kind of chargeable multiple power supplies output, comprise charge protection unit, solar panel or standard USB port, lithium cell charging administrative unit, reduction voltage circuit, booster circuit and Voltage-output port, solar panel or standard USB port connect charge protection unit, charge protection unit connects lithium cell charging administrative unit, lithium cell charging administrative unit connects respectively reduction voltage circuit, booster circuit and Voltage-output port, reduction voltage circuit connects Voltage-output port, booster circuit connects Voltage-output port, the utility model is reasonable in design, peripheral circuit is simple, volume is little, conversion efficiency is high, cost is lower, be convenient for carrying reliability high, be applicable to all kinds of middle low power portable instrument equipment.

Description

A kind of chargeable multiple power supplies output
Technical field
The utility model is specifically related to a kind of chargeable multiple power supplies output.
Background technology
Along with scientific and technical development, various portable products are deep into the links of people's daily life gradually, as mobile phone, panel computer and various measuring instrument terminals etc.The standby performance of battery becomes the bottleneck of the various end product development of restriction gradually, and miniaturization, long operating time also become the inherent requirement of power supply.
Utility model content
The purpose of this utility model is for solving above-mentioned deficiency, and a kind of chargeable multiple power supplies output is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of chargeable multiple power supplies output; comprise charge protection unit, solar panel or standard USB port, lithium cell charging administrative unit, reduction voltage circuit, booster circuit and Voltage-output port; solar panel or standard USB port connect charge protection unit; charge protection unit connects lithium cell charging administrative unit; lithium cell charging administrative unit connects respectively reduction voltage circuit, booster circuit and Voltage-output port; reduction voltage circuit connects Voltage-output port, and booster circuit connects Voltage-output port.
The utility model also has some technical characterictics like this:
Described lithium cell charging administrative unit adopts CN3065 battery management chip.
Described reduction voltage circuit adopts TPS62046 current conversion chip.
Described booster circuit adopts MC33063 booster circuit chip.
The utlity model has following useful effect:
The utility model is reasonable in design, and peripheral circuit is simple, volume is little, conversion efficiency is high, cost is lower, is convenient for carrying reliability high, is applicable to all kinds of middle low power portable instrument equipment.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is booster circuit schematic diagram of the present utility model;
Fig. 3 is reduction voltage circuit schematic diagram of the present utility model;
Fig. 4 is lithium cell charging administrative unit schematic diagram of the present utility model;
Fig. 5 is charge protection cell schematics of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
Embodiment 1
A kind of chargeable multiple power supplies output, comprise charge protection unit 1, solar panel or standard USB port 2, lithium cell charging administrative unit 3, reduction voltage circuit 4, booster circuit 5 and Voltage-output port 6, solar panel or standard USB port 2 connect charge protection unit 1, charge protection unit 1 connects lithium cell charging administrative unit 3, lithium cell charging administrative unit 3 connects respectively reduction voltage circuit 4, booster circuit 5 and Voltage-output port 6, reduction voltage circuit 4 connects Voltage-output port 6, booster circuit 5 connects Voltage-output port 6, described lithium cell charging administrative unit adopts CN3065 battery management chip, described reduction voltage circuit adopts TPS62046 current conversion chip, described booster circuit adopts MC33063 booster circuit chip.
Embodiment 2
Solar panel or standard USB port to lithium cell charging, need only the voltage of lithium battery not in saturation condition by charge protector, when connecting solar panel or USB, will charge to lithium battery; Lithium battery boosts by booster circuit, and the numerical value that boosts is defined as conventional supply power voltage 5V and 9V, and wherein, 5V and 9V output can be selected by toggle switch; By reduction voltage circuit, voltage is reduced to the standard supply power voltage 3.3V of conventional single-chip microcomputer; Wherein boost and step-down all can make the electric energy generation loss storing, so by physical switch or need to connect and use the IO of CPU to control, the voltage only needs being used carries out voltage transitions, has guaranteed effective utilization of battery electric quantity.Voltage-output port is all drawn optional boost value 5V/9V, step-down value 3.3V and lithium battery self, to meet the user demand of different occasions.
Booster circuit: when the connecting resistance R5 of the base stage institute left end control port BOOST_CONTROL of triode Q3 is low, triode emitter junction positively biased, collector junction is anti-inclined to one side, triode is operated in amplification region, being equivalent to collector electrode is communicated with emitter, collector electrode place BOOST+ voltage is approximately equal to cell voltage Li+, and booster circuit is started working; When BOOST_CONTROL is while being high, triode is operated in cut-off region, almost there is no electric current between the emitter and collector of triode, is equivalent to disconnect between BOOST+ and Li+, and booster circuit quits work.
Reduction voltage circuit: when the left end control port STEPDOWN_CONTROL of the connecting resistance R11 of base stage institute of triode Q4 is low, collector electrode is communicated with emitter, and collector electrode goes out SSTEPDOWN place voltage and is approximately equal to cell voltage Li+, and reduction voltage circuit is started working; When STEPDOWN_CONTROL is while being high, be equivalent to disconnect between STEPDOWN and Li+, reduction voltage circuit quits work.
The SUN of power source charges management circuit and USB connect respectively 5V solar energy positive input terminal and USB positive input terminal, by two diode-isolated, when not meeting USB, only by solar panel, provide charging voltage, and vice versa.When connecing USB and solar panel and also work, select higher voltage as charging voltage.
When input voltage is greater than low-voltage detection threshold and battery terminal voltage, CN3065 starts battery charging, and CHRG pin output low level represents to charge and carries out, and red light emitting diodes D3 is bright simultaneously; If the voltage of battery voltage detection input (FB) is lower than 3V, charger carries out precharge with little electric current to battery; When the voltage of battery voltage detection input (FB) surpasses 3V, charger adopts cross-flow mode to charge to battery.
When the voltage of battery voltage detection input (FB) approaches battery-end modulation voltage, charging current reduces gradually, and CN3065 enters constant voltage charge pattern.When input voltage is greater than 4.45V, and charging current is when being reduced to charging and finishing threshold value, and charge cycle finishes, CHRG pin output high level, and DONE pin output low level, red light emitting diodes D3 goes out, and green LED D2 is bright.When input voltage power down or input voltage are during lower than cell voltage, charger enters the sleep pattern of low-power consumption.

Claims (4)

1. a chargeable multiple power supplies output; comprise charge protection unit, solar panel or standard USB port, lithium cell charging administrative unit, reduction voltage circuit, booster circuit and Voltage-output port; it is characterized in that: solar panel or standard USB port connect charge protection unit; charge protection unit connects lithium cell charging administrative unit; lithium cell charging administrative unit connects respectively reduction voltage circuit, booster circuit and Voltage-output port; reduction voltage circuit connects Voltage-output port, and booster circuit connects Voltage-output port.
2. a kind of chargeable multiple power supplies output as claimed in claim 1, is characterized in that: described lithium cell charging administrative unit adopts CN3065 battery management chip.
3. a kind of chargeable multiple power supplies output as claimed in claim 1, is characterized in that: described reduction voltage circuit adopts TPS62046 current conversion chip.
4. a kind of chargeable multiple power supplies output as claimed in claim 1, is characterized in that: described booster circuit adopts MC33063 booster circuit chip.
CN201420340831.9U 2014-06-25 2014-06-25 A kind of chargeable multiple power supplies output Active CN204012807U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420340831.9U CN204012807U (en) 2014-06-25 2014-06-25 A kind of chargeable multiple power supplies output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420340831.9U CN204012807U (en) 2014-06-25 2014-06-25 A kind of chargeable multiple power supplies output

Publications (1)

Publication Number Publication Date
CN204012807U true CN204012807U (en) 2014-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420340831.9U Active CN204012807U (en) 2014-06-25 2014-06-25 A kind of chargeable multiple power supplies output

Country Status (1)

Country Link
CN (1) CN204012807U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106025412A (en) * 2016-04-29 2016-10-12 深圳市华芯邦科技有限公司 Lithium ion secondary battery with USB interface and charging and discharging control method of lithium ion secondary battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106025412A (en) * 2016-04-29 2016-10-12 深圳市华芯邦科技有限公司 Lithium ion secondary battery with USB interface and charging and discharging control method of lithium ion secondary battery
CN106025412B (en) * 2016-04-29 2018-11-06 深圳市华芯邦科技有限公司 It is provided with the lithium rechargeable battery and its charge/discharge control method of USB interface

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: SHENZHEN NASDA INDUSTRY AND TRADE CO., LTD.

Assignor: He Yingzhong

Contract record no.: 2015440020325

Denomination of utility model: Rechargeable multi-path power supply output

Granted publication date: 20141210

License type: Exclusive License

Record date: 20150928