CN206850455U - Low-voltage power supply - Google Patents
Low-voltage power supply Download PDFInfo
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- CN206850455U CN206850455U CN201720020444.0U CN201720020444U CN206850455U CN 206850455 U CN206850455 U CN 206850455U CN 201720020444 U CN201720020444 U CN 201720020444U CN 206850455 U CN206850455 U CN 206850455U
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- lithium battery
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Abstract
The utility model discloses a low-voltage power supply, which comprises a lithium battery, a lithium battery protection module, a voltage reduction charging management module, a voltage boosting discharging module, an input interface and an output interface for outputting low-voltage; the lithium battery protection module is connected with a lithium battery, the voltage reduction charging management module and the voltage boosting discharging module are connected with the lithium battery protection module, the input interface is connected with the voltage reduction charging management module, and the output interface is connected with the voltage boosting discharging module. Through adopting the lithium cell, the cooperation utilizes lithium battery protection module, step-down charge management module and input interface can charge to the lithium cell, and the cooperation utilizes lithium battery protection module, the module of discharging and the output interface that steps up can discharge to the lithium cell, has realized low pressure output to make this product can repeat repetitious usage, reduced use cost, and adopt the lithium cell can not appear spilling electrolyte, production pollution is little.
Description
Technical Field
The utility model relates to a power field technique especially indicates a low voltage power supply.
Background
With the introduction of advanced and precision equipment, many foreign devices face the following problems in the use process: 1. expensive spare parts, long purchasing period, poor universality of the spare parts and the like. Therefore, once equipment fails, the equipment is difficult to repair in a short time, for example, in a hub test stand for automobile detection, batteries used by a remote controller and the remote controller are German products, the batteries are low-voltage batteries, the batteries are all 1.5V dry batteries in China, and if the 1.5V dry batteries are connected in parallel, although the voltage can meet the requirement, the structural stability is poor, the dry batteries cannot be installed in the remote controller, so that the phenomena of poor contact or power failure and the like often occur, for example, the purchase of original batteries from Germany not only needs to spend at least 500 yuan/yuan, but also the purchase time needs to be about two months, so that the normal use of the hub test stand is seriously influenced.
Moreover, the zinc-manganese batteries used for the power supply of the low-voltage output battery at present belong to disposable batteries, cannot be reused, and are easy to leak electrolyte, so that the production pollution is large.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a low voltage power supply, which can effectively solve the problems that the existing low voltage output battery power supply cannot be reused, the electrolyte is easy to leak, and the production pollution is large.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a low-voltage power supply comprises a lithium battery, a lithium battery protection module, a voltage reduction charging management module, a voltage boosting discharging module, an input interface and an output interface for outputting low-voltage; the lithium battery protection module is connected with a lithium battery, the voltage reduction charging management module and the voltage boosting discharging module are connected with the lithium battery protection module, the input interface is connected with the voltage reduction charging management module, and the output interface is connected with the voltage boosting discharging module.
Preferably, the input interface is a 5V USB input interface.
Preferably, the lithium battery protection module adopts a chip with the model number of DW 01B.
Preferably, the step-down charging management module adopts a power management IC of TP 4057.
Preferably, the boost discharging module adopts a constant current mode PWM boost IC with model number SD 6271.
Preferably, the lithium battery adopts a cylindrical lithium battery, a square lithium battery and a polymer lithium battery.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
through adopting the lithium cell, the cooperation utilizes lithium battery protection module, step-down charge management module and input interface can charge to the lithium cell, and the cooperation utilizes lithium battery protection module, the module of discharging and the output interface that steps up can discharge to the lithium cell, has realized low pressure output to make this product can repeat repetitious usage, reduced use cost, and adopt the lithium cell can not appear spilling electrolyte, production pollution is little.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic block diagram of the structure of the preferred embodiment of the present invention.
The attached drawings indicate the following:
10. lithium battery 20 and lithium battery protection module
30. Step-down charging management module 40 and step-up discharging module
50. An input interface 60, an output interface.
Detailed Description
Referring to fig. 1, a specific structure of a preferred embodiment of the present invention is shown, which includes a lithium battery 10, a lithium battery protection module 20, a step-down charging management module 30, a step-up discharging module 40, an input interface 50, and an output interface 60 for outputting a low voltage.
The lithium battery protection module 20 is connected with the lithium battery 10, the voltage reduction charge management module 30 and the voltage boosting discharge module 40 are both connected with the lithium battery protection module 20, the input interface 50 is connected with the voltage reduction charge management module 30, and the output interface 60 is connected with the voltage boosting discharge module 40.
In this embodiment, the input interface 50 is a 5V USB input interface, and the specific structure and operation principle thereof are the prior art, and the specific structure and operation principle of the 5V USB input interface will not be described in detail herein. . The lithium battery protection module 20 adopts a chip with the model number of DW01B, the specific structure and the working principle thereof are the prior art, and the specific structure and the working principle of the lithium battery protection module 20 are not described in detail herein. The step-down charging management module 30 adopts a power management IC of TP4057, and the specific structure and operation principle thereof are the prior art, and the specific structure and operation principle of the step-down charging management module 30 are not described in detail herein. The boosting discharge module 40 adopts a constant current mode PWM boosting IC with the model number of SD6271, an over-temperature protection circuit, a turn-off protection circuit, an under-voltage protection circuit and an over-current protection circuit are built in the boosting discharge module 40, the specific structure and the working principle of the boosting discharge module 40 are the prior art, and the specific structure and the working principle of the boosting discharge module 40 are not described in detail herein.
During charging, 5V voltage is input from the input interface 50, then enters the lithium battery protection module 20 after being subjected to voltage reduction processing by the voltage reduction charging management module 30, and then is input into the lithium battery 10 for storage, and the charging protection voltage is 4.20-4.50V. During discharging, the output voltage of the lithium battery 10 enters the boost discharging module 40 through the lithium battery protection module 20, and after the boost discharging module 40 performs boost processing, a low voltage is obtained, the over-discharge protection voltage is 2.0-3.3V, and the low voltage is output from the output interface 60 for the use of electric equipment. The output voltage ranges from 5V to 24V.
Low voltage power supply, including 6V, 9V, 12V, 20V etc. all belong to the utility model discloses a protection scope.
The utility model discloses a design key is: through adopting the lithium cell, the cooperation utilizes lithium cell protection module, step-down charge management module and input interface can charge to the lithium cell, and the cooperation utilizes lithium cell protection module, the module of discharging and output interface that steps up can discharge to the lithium cell, has realized low pressure output to make this product can repeat repetitious usage, reduced use cost, and adopt the lithium cell can not appear spilling electrolyte, production pollution is little.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive step, and these embodiments are all intended to fall within the scope of the present invention.
Claims (2)
1. A low voltage power supply, characterized by: the lithium battery charging system comprises a lithium battery, a lithium battery protection module, a voltage reduction charging management module, a voltage boosting discharging module, an input interface and an output interface for outputting low voltage; the lithium battery protection module is connected with a lithium battery, the voltage reduction charging management module and the voltage boosting discharging module are both connected with the lithium battery protection module, the input interface is connected with the voltage reduction charging management module, and the output interface is connected with the voltage boosting discharging module; the input interface is a 5V USB input interface; the lithium battery protection module adopts a DW01B chip; the voltage reduction charging management module adopts a power management IC of TP 4057; the boost discharging module adopts a constant current mode PWM boost IC with the model number of SD 6271.
2. A low voltage power supply as claimed in claim 1, wherein: the lithium battery comprises a cylindrical lithium battery, a square lithium battery and a polymer lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020444.0U CN206850455U (en) | 2017-01-09 | 2017-01-09 | Low-voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020444.0U CN206850455U (en) | 2017-01-09 | 2017-01-09 | Low-voltage power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206850455U true CN206850455U (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720020444.0U Active CN206850455U (en) | 2017-01-09 | 2017-01-09 | Low-voltage power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162661A (en) * | 2020-01-14 | 2020-05-15 | 上海南芯半导体科技有限公司 | Control circuit and method of bidirectional switching power supply |
-
2017
- 2017-01-09 CN CN201720020444.0U patent/CN206850455U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111162661A (en) * | 2020-01-14 | 2020-05-15 | 上海南芯半导体科技有限公司 | Control circuit and method of bidirectional switching power supply |
| CN111162661B (en) * | 2020-01-14 | 2021-09-03 | 上海南芯半导体科技有限公司 | Control circuit and method of bidirectional switching power supply |
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| PP01 | Preservation of patent right |
Effective date of registration: 20201106 Granted publication date: 20180105 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210112 Granted publication date: 20180105 |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210625 Granted publication date: 20180105 |