CN203691235U - Boost device used for under-voltage battery with low load rate - Google Patents
Boost device used for under-voltage battery with low load rate Download PDFInfo
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- CN203691235U CN203691235U CN201420080705.4U CN201420080705U CN203691235U CN 203691235 U CN203691235 U CN 203691235U CN 201420080705 U CN201420080705 U CN 201420080705U CN 203691235 U CN203691235 U CN 203691235U
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- switch power
- resistance
- power supply
- electric capacity
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Abstract
The utility model discloses a boost device used for an under-voltage battery with low load rate and relates to the boost device used for the under-voltage battery. A fifth pin of a boost switch power chip is connected with an end of a third capacitor. A tenth pin of the boost switch power chip is connected with an end of a first resistor. A third pin and a fourth pin of the boost switch power chip are connected with one end of an inductor and a positive electrode of the battery. The other end of the inductor is connected with a first pin of the boost switch power chip and a positive electrode of a diode. A ninth pin of the boost switch power chip is connected with one end of a second resistor and an end of a third resistor respectively. The other end of the second resistor is connected with a negative electrode of the diode and an end of a sixth capacitor. An eighth pin of the boost switch power chip is connected with one end of a fourth resistor and an end of a fifth resistor. The other end of the fourth resistor is connected with an end of a fourth capacitor. The boost device provided by the utility model is used for providing compensative boost for the under-voltage battery in a low-load condition. A relatively standard voltage under a low load rate is provided. The device is small in size and high in boosting efficiency.
Description
Technical field
The utility model relates to a kind of battery undervoltage increasing apparatus, be specifically related to a kind of low load factor battery undervoltage increasing apparatus.
Background technology
At present increasing embedded device has adopted polymer battery as device power supply (DPS), in the integrated advantage of outward appearance, emergency case causes the situation of equipment voltage cisco unity malfunction lower than normal voltage also to happen occasionally, in this case, the battery undervoltage increasing apparatus of a low load factor is very promising.
Summary of the invention
For the deficiency existing in prior art, the utility model object is to be to provide a kind of low load factor battery undervoltage increasing apparatus, for under-voltage battery being entered to descending compensatory the boosting of low load condition, provides a relative standard's voltage under low load factor, device volume is little, and boosting efficiency is high.
To achieve these goals, the utility model is to realize by the following technical solutions: low load factor battery undervoltage increasing apparatus, comprises boosted switch power supply chip, inductance, diode, the first electric capacity-six electric capacity, the first resistance-tetra-resistance and battery, 5 pin of boosted switch power supply chip are connected with the 3rd electric capacity one end, and 10 pin of boosted switch power supply chip are connected with first resistance one end, 3 pin of boosted switch power supply chip, 4 pin and inductance one end, anode is connected, the inductance other end respectively with 1 pin of boosted switch power supply chip, diode cathode be connected, 9 pin of boosted switch power supply chip respectively with second resistance one end, the 3rd resistance one end is connected, the second resistance other end and diode cathode, the 6th electric capacity one end is connected, 8 pin of boosted switch power supply chip and the 4th resistance one end, the 5th resistance one end is connected, and the 4th resistance other end is connected with the 4th electric capacity one end, the 5th electric capacity other end, the 4th electric capacity other end, the 3rd resistance other end, the 6th electric capacity other end, 6 pin of boosted switch power supply chip, 7 pin and 12 pin, the 3rd electric capacity other end, the first resistance other end, first electric capacity one end, second electric capacity one end is all connected with battery cathode, and the first electric capacity, the second Capacitance parallel connection.
Described boosted switch power supply chip adopts chip TPS55340.
The utility model utilizes the boosted switch power supply chip TPS55340 of the integrated merit metal-oxide-semiconductor of Texas Instrument to manage battery, utilizes chip internal to provide, and includes voltage monitoring, under-voltage lower voltage compensation; In its sheet, there is 1.229v reference voltage, by coupling off chip resistor, reach the threshold voltage of 1+Rsh/Rsl; Exceed after its design voltage, chip can be closed the output of its MOS automatically.
The beneficial effects of the utility model are: device volume is little, and boosting efficiency is high.
Brief description of the drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is circuit diagram of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1, this embodiment by the following technical solutions: low load factor battery undervoltage increasing apparatus, comprises boosted switch power supply chip U1, inductance L 1, diode D1, the first capacitor C 1-the 6th capacitor C 6, the first resistance R 1-the 4th resistance R 4 and battery BT1,5 pin of boosted switch power supply chip U1 are connected with the 3rd capacitor C 3 one end, and 10 pin of boosted switch power supply chip U1 are connected with first resistance R 1 one end, 3 pin of boosted switch power supply chip U1, 4 pin and inductance L 1 one end, battery BT1 is anodal to be connected, inductance L 1 other end respectively with 1 pin of boosted switch power supply chip U1, diode D1 is anodal to be connected, 9 pin of boosted switch power supply chip U1 respectively with second resistance R 2 one end, the 3rd resistance R 3 one end are connected, second resistance R 2 other ends and diode D1 negative pole, the 6th capacitor C 6 one end are connected, 8 pin of boosted switch power supply chip U1 and the 4th resistance R 4 one end, the 5th resistance R 5 one end are connected, and the 4th resistance R 4 other ends are connected with the 4th capacitor C 4 one end, the 5th capacitor C 5 other ends, the 4th capacitor C 4 other ends, the 3rd resistance R 3 other ends, the 6th capacitor C 6 other ends, 6 pin of boosted switch power supply chip U1, 7 pin and 12 pin, the 3rd capacitor C 3 other ends, first resistance R 1 other end, first capacitor C 1 one end, second capacitor C 2 one end are all connected with battery BT1 negative pole, and the first capacitor C 1, the second capacitor C 2 parallel connections.
Described boosted switch power supply chip U1 adopts chip TPS55340.
This embodiment circuit is connected to: 1 pin and 3 pin of Switching Power Supply managing chip TPS55340 connect 33m inductance L 1, between 1 pin of Switching Power Supply managing chip TPS55340 and 12 pin, be connected in series ultrahigh speed and recover Schottky diode D1, the second resistance R 2 of 28.7K, the 3rd resistance R 3 of 10K, 9 pin of Switching Power Supply managing chip TPS55340 are connected to the intermediate node of the second resistance R 2 and the 3rd resistance R 3,8 pin of Switching Power Supply managing chip TPS55340 connect the 5th capacitor C 5 to 12 pin of 33pf, and connect the 4th resistance R 4 of 10k and the 4th capacitor C 4 to 12 pin of 0.022uf; The 6th capacitor C 6 of two termination 10uF of the second resistance R 2 and the 3rd resistance R 3; 3 pin of Switching Power Supply managing chip TPS55340 connect 4 pin; 10 pin of Switching Power Supply managing chip TPS55340 connect the first resistance R 1 to 12 pin of 82k, 5 pin of Switching Power Supply managing chip TPS55340 connect the 3rd capacitor C 3 to 12 pin of 0.022uF, between 3 pin and 12 of Switching Power Supply managing chip TPS55340 and connect the second capacitor C 2 of 22uf, the first capacitor C 1 of 22uf, battery BT1,7 pin and 6 pin of Switching Power Supply managing chip TPS55340 are connected to 12 pin.
Embodiment 1: when battery BT1 is under-voltage, the chip TPS55340 sheet internal power metal-oxide-semiconductor work of boosting, by switch power metal-oxide-semiconductor and energy storage inductor booster tension, by feedback loop and sheet internal reference voltage rate of exchange Austria, improves cell voltage to 5V.
Embodiment 2: battery BT1 is non-when under-voltage, and the chip TPS55340 sheet internal power metal-oxide-semiconductor that boosts is closed, and monitoring battery output voltage at any time with the comparison of sheet internal reference voltage, open MOS and boost in the time of under-voltage generation.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. low load factor battery undervoltage increasing apparatus, is characterized in that, comprises boosted switch power supply chip (U1), inductance (L1), diode (D1), the first electric capacity (C1)-the 6th electric capacity (C6), the first resistance (R1)-the 4th resistance (R4) and battery (BT1), 5 pin of boosted switch power supply chip (U1) are connected with the 3rd electric capacity (C3) one end, 10 pin of boosted switch power supply chip (U1) are connected with the first resistance (R1) one end, 3 pin of boosted switch power supply chip (U1), 4 pin and inductance (L1) one end, battery (BT1) is anodal to be connected, inductance (L1) other end respectively with 1 pin of boosted switch power supply chip (U1), diode (D1) is anodal to be connected, 9 pin of boosted switch power supply chip (U1) respectively with the second resistance (R2) one end, the 3rd resistance (R3) one end is connected, the second resistance (R2) other end and diode (D1) negative pole, the 6th electric capacity (C6) one end is connected, 8 pin of boosted switch power supply chip (U1) and the 4th resistance (R4) one end, the 5th resistance (R5) one end is connected, and the 4th resistance (R4) other end is connected with the 4th electric capacity (C4) one end, the 5th electric capacity (C5) other end, the 4th electric capacity (C4) other end, the 3rd resistance (R3) other end, the 6th electric capacity (C6) other end, 6 pin of boosted switch power supply chip (U1), 7 pin and 12 pin, the 3rd electric capacity (C3) other end, the first resistance (R1) other end, the first electric capacity (C1) one end, the second electric capacity (C2) one end is all connected with battery (BT1) negative pole, and the first electric capacity (C1), the second electric capacity (C2) parallel connection.
2. low load factor battery undervoltage increasing apparatus according to claim 1, is characterized in that, described boosted switch power supply chip (U1) adopts chip TPS55340.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080705.4U CN203691235U (en) | 2014-02-25 | 2014-02-25 | Boost device used for under-voltage battery with low load rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080705.4U CN203691235U (en) | 2014-02-25 | 2014-02-25 | Boost device used for under-voltage battery with low load rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691235U true CN203691235U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420080705.4U Expired - Fee Related CN203691235U (en) | 2014-02-25 | 2014-02-25 | Boost device used for under-voltage battery with low load rate |
Country Status (1)
| Country | Link |
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| CN (1) | CN203691235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337502A (en) * | 2015-12-02 | 2016-02-17 | 珠海格力电器股份有限公司 | Low-power-dissipation circuit energy collecting circuit |
-
2014
- 2014-02-25 CN CN201420080705.4U patent/CN203691235U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337502A (en) * | 2015-12-02 | 2016-02-17 | 珠海格力电器股份有限公司 | Low-power-dissipation circuit energy collecting circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140702 Termination date: 20170225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |