CN105281390A - Two-in-one mobile power supply single-inductor novel structure - Google Patents
Two-in-one mobile power supply single-inductor novel structure Download PDFInfo
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- CN105281390A CN105281390A CN201410355796.2A CN201410355796A CN105281390A CN 105281390 A CN105281390 A CN 105281390A CN 201410355796 A CN201410355796 A CN 201410355796A CN 105281390 A CN105281390 A CN 105281390A
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- charging
- pmosfet
- discharging
- inductor
- nmosfet
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Abstract
The invention discloses a two-in-one mobile power supply single-inductor novel structure. The two-in-one mobile power supply single-inductor novel structure is characterized by comprising a PMOSFET for charging and a PMOSFET for discharging, the PMOSFET for the charging and the PMOSFET for the discharging are connected with an NMOSFET shared by charging and discharging, and the NMOSFET shared by the charging and the discharging are connected with an inductor L, a sampling resistor RS and an output capacitor COUT.
Description
Technical field
The present invention relates to portable power source, be specifically related to a kind of new structure of two-in-one portable power source list inductance.
Background technology
Existing portable power source discharge and recharge chip, under the framework adopting switching regulator discharge and recharge, needs 4 power tubes, realizes charging and discharging function.And in charging and discharging process, power flow there are 3 power tubes, reduce the efficiency of discharge and recharge.
Summary of the invention
The present invention is directed to deficiency of the prior art, a kind of new structure of two-in-one portable power source list inductance is provided.
The present invention is realized by following technical scheme: a kind of new structure of two-in-one portable power source list inductance, comprise charging PMOSFET, electric discharge PMOSFET, described charging PMOSFET, discharging connects charging and discharging with PMOSFET and share NMOSFET, and wherein charging and discharging share NMOSFET and connects inductance L, sampling resistor RS, output capacitance COUT.
Compared with prior art: decrease a power tube, reduce cost.Power flow only has 2 MOSFET, improve efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 101, charging PMOSFET; 102, electric discharge PMOSFET; 103, charging and discharging share NMOSFET; 104, inductance L; 105, sampling resistor RS; 106, output capacitance COUT.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
As shown in Figure 1, a kind of new structure of two-in-one portable power source list inductance, comprise charging PMOSFET, electric discharge PMOSFET, described charging PMOSFET, discharging connects charging and discharging with PMOSFET and share NMOSFET, and wherein charging and discharging share NMOSFET and connects inductance L, sampling resistor RS, output capacitance COUT.
This case adopts 3 MOSFET and inductance, can realize switching regulator charge function and the synchronous boost function of synchronous buck pattern.When charging, electric discharge PMOSFET disconnects, and charging PMOSFET and charging and discharging share NMOSFET and form the charging of synchronous buck pattern.During electric discharge, charging PMOSFET disconnects, and electric discharge PMOSFET and charging and discharging share NMOSFET and form synchronous boost mode discharge.
The foregoing is only and embody the preferred embodiment of the principle of the invention, therefore do not limit protection scope of the present invention, every equalization change done according to the present invention with modify within the scope of the claims of all containing in the present invention.
Claims (1)
1. the new structure of a two-in-one portable power source list inductance, comprise charging PMOSFET, electric discharge PMOSFET, described charging PMOSFET, discharging connects charging and discharging with PMOSFET and share NMOSFET, and wherein charging and discharging share NMOSFET and connects inductance L, sampling resistor RS, output capacitance COUT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355796.2A CN105281390A (en) | 2014-07-22 | 2014-07-22 | Two-in-one mobile power supply single-inductor novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355796.2A CN105281390A (en) | 2014-07-22 | 2014-07-22 | Two-in-one mobile power supply single-inductor novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105281390A true CN105281390A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410355796.2A Pending CN105281390A (en) | 2014-07-22 | 2014-07-22 | Two-in-one mobile power supply single-inductor novel structure |
Country Status (1)
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| CN (1) | CN105281390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375575A (en) * | 2015-12-03 | 2016-03-02 | 无锡矽林威电子有限公司 | Portable power supply circuit with novel structure |
| CN111404212A (en) * | 2020-02-12 | 2020-07-10 | 钰泰半导体南通有限公司 | Battery pack and charge-discharge module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100213904A1 (en) * | 2009-02-24 | 2010-08-26 | Toyota Jidosha Kabushiki Kaisha | Vehicle and discharge method of smoothing capacitor in vehicle |
| CN101976894A (en) * | 2010-10-15 | 2011-02-16 | 南京理工大学 | Energy storage system realizing bidirectional electric energy flow and control method thereof |
| CN103384115A (en) * | 2013-07-15 | 2013-11-06 | 深圳桑达国际电源科技有限公司 | Charging and discharging type direct current (DC)-DC conversion circuit and new energy power generation system |
-
2014
- 2014-07-22 CN CN201410355796.2A patent/CN105281390A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100213904A1 (en) * | 2009-02-24 | 2010-08-26 | Toyota Jidosha Kabushiki Kaisha | Vehicle and discharge method of smoothing capacitor in vehicle |
| CN101976894A (en) * | 2010-10-15 | 2011-02-16 | 南京理工大学 | Energy storage system realizing bidirectional electric energy flow and control method thereof |
| CN103384115A (en) * | 2013-07-15 | 2013-11-06 | 深圳桑达国际电源科技有限公司 | Charging and discharging type direct current (DC)-DC conversion circuit and new energy power generation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375575A (en) * | 2015-12-03 | 2016-03-02 | 无锡矽林威电子有限公司 | Portable power supply circuit with novel structure |
| CN111404212A (en) * | 2020-02-12 | 2020-07-10 | 钰泰半导体南通有限公司 | Battery pack and charge-discharge module |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |
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| WD01 | Invention patent application deemed withdrawn after publication |