CN103346777A - Shift circuit applicable to flat computer - Google Patents
Shift circuit applicable to flat computer Download PDFInfo
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- CN103346777A CN103346777A CN2013102538940A CN201310253894A CN103346777A CN 103346777 A CN103346777 A CN 103346777A CN 2013102538940 A CN2013102538940 A CN 2013102538940A CN 201310253894 A CN201310253894 A CN 201310253894A CN 103346777 A CN103346777 A CN 103346777A
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Abstract
The invention discloses a shift circuit applicable to a flat computer. The shift circuit comprises a transistor T1, a transistor T3, a transistor T5, a transistor T6, a transistor T4 and a transistor T2 which are sequentially connected to form a closed loop. Emitters of the mutual connecting ends of the transistor T1 and the transistor T2 are both connected with a power source, a base of the transistor T1 and a base of the transistor T2 are connected with each other and connected with an input port, the transistor T3 is further connected with the common connecting ends of the transistor T4 and the transistor T6, the transistor T4 is further connected with the common connecting ends of the transistor T3 and the transistor T5, the common connecting ends of the transistor T5 and the transistor T6 are both grounded, the negative electrode of a diode D1 is further connected to the transistor T5 and the positive electrode of a diode D2 is connected to the transistor T6. Through the loop, the problem that power source voltages and input signals are limited by a threshold voltage is solved, and shift change between higher voltages is realized.
Description
Technical field
The present invention relates to level displacement circuit, be specifically related to be applicable to the shift circuit of panel computer.
Background technology
In existing a lot of driving chip or the power electronic chip system, all have different voltage, magnitude of voltage can arrive tens volts from several volts.Owing to there is the relation of mutual restriction between chip and the chip, also just inevitably there is the conversion between the signal between them, namely use high pressure and convert the level displacement circuit that low pressure or low pressure convert high pressure to.Almost in all power electronic chips or driving chip, all come the driving power pipe by low pressure being converted to high pressure now, appearance along with energy-conservation low-power consumption requirement, and the continuous expansion of power electronic chip or driving chip application scope, high-pressure section is required than higher.And can only realize change in displacement between the low-voltage in the present level displacement circuit, can not realize the more change in displacement between the high voltage.Be to solve threshold voltage to the limited problem of supply voltage and input signal, propose a kind of level displacement circuit of practicality, for the input stage of amplifier provides good level shift.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and the shift circuit that is applicable to panel computer is provided, and solves threshold voltage to the limited problem of supply voltage and input signal, realizes the more change in displacement between the high voltage.
For solving above-mentioned technical problem, the present invention is by the following technical solutions: the shift circuit that is applicable to panel computer, comprise triode T1, the triode T3, triode T5, triode T6, triode T4 and the triode T2 that connect to form the closed-loop path successively, the end emitter that interconnects of described triode T1 and triode T2 all connects power supply, and the basis set of triode T1 and triode T2 interconnects and is connected input port; Described triode T3 also connects the public connecting end of triode T4 and triode T6; Described triode T4 also connects the public connecting end of triode T3 and triode T5; The equal ground connection of public connecting end of described triode T5 and triode T6 also connects the negative pole of diode D1 on the triode T5, triode T6 connects the positive pole of diode D1.
The positive pole of described diode D1 also connects input port.
The public connecting end of described triode T3 and triode T5 is connected output port.
The public connecting end of described triode T4 and triode T6 is connected output port.
Described triode T3, triode T4, triode T5 and triode T6 are metal-oxide-semiconductor.
Described triode T1 and triode T2 are the positive-negative-positive triode.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention has increased by two triode T1 and triode T2 on the basis of original circuit, and the basis set of a pair of triode all connects a DC level, the collector voltage of control triode T1 and triode T2 is lower than default withstand voltage, can realize the more change in displacement between the high voltage.
2, in the one-way flow that is connected with between triode T5 and the input port between the diode D1 realization data.
Description of drawings
Fig. 1 is schematic diagram of the present invention.
Embodiment
The present invention is further elaborated below in conjunction with accompanying drawing, and embodiments of the invention are not limited thereto.
Embodiment:
As shown in Figure 1, the present invention includes triode T1, the triode T3, triode T5, triode T6, triode T4 and the triode T2 that connect to form the closed-loop path successively, triode T3, triode T4, triode T5 and triode T6 are metal-oxide-semiconductor, and triode T1 and triode T2 are the positive-negative-positive triode.The end emitter that interconnects of the triode T1 of present embodiment and triode T2 all connects power supply, and the basis set of triode T1 and triode T2 interconnects and is connected input port.The triode T3 of present embodiment also connects the public connecting end of triode T4 and triode T6.The triode T4 of present embodiment also connects the public connecting end of triode T3 and triode T5, the equal ground connection of the public connecting end of triode T5 and triode T6, the negative pole that also connects diode D1 on the triode T5, triode T6 connects the positive pole of diode D1, and the positive pole of diode D1 also connects input port.The triode T3 of present embodiment is connected output port with the public connecting end of triode T5, and triode T4 is connected output port with the public connecting end of triode T6.
On the basis of original level displacement circuit, increased a pair of triode T1 and T2, the basis set of triode T1 and triode T2 is connected with DC level and communicates, and control transistor collector voltage is lower than default withstand voltage, can realize more high-tension compatibility.
Just can realize this invention as mentioned above.
Claims (6)
1. be applicable to the shift circuit of panel computer, it is characterized in that: comprise triode T1, the triode T3, triode T5, triode T6, triode T4 and the triode T2 that connect to form the closed-loop path successively, the end emitter that interconnects of described triode T1 and triode T2 all connects power supply, and the basis set of triode T1 and triode T2 interconnects and is connected input port; Described triode T3 also connects the public connecting end of triode T4 and triode T6; Described triode T4 also connects the public connecting end of triode T3 and triode T5; The equal ground connection of public connecting end of described triode T5 and triode T6 also connects the negative pole of diode D1 on the triode T5, triode T6 connects the positive pole of diode D1.
2. the shift circuit that is applicable to panel computer according to claim 1, it is characterized in that: the positive pole of described diode D1 also connects input port.
3. the shift circuit that is applicable to panel computer according to claim 1, it is characterized in that: the public connecting end of described triode T3 and triode T5 is connected output port.
4. the shift circuit that is applicable to panel computer according to claim 1, it is characterized in that: the public connecting end of described triode T4 and triode T6 is connected output port.
5. the shift circuit that is applicable to panel computer according to claim 1, it is characterized in that: described triode T3, triode T4, triode T5 and triode T6 are metal-oxide-semiconductor.
6. according to any described shift circuit that is applicable to panel computer of claim 1-5, it is characterized in that: described triode T1 and triode T2 are the positive-negative-positive triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102538940A CN103346777A (en) | 2013-06-25 | 2013-06-25 | Shift circuit applicable to flat computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102538940A CN103346777A (en) | 2013-06-25 | 2013-06-25 | Shift circuit applicable to flat computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103346777A true CN103346777A (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102538940A Pending CN103346777A (en) | 2013-06-25 | 2013-06-25 | Shift circuit applicable to flat computer |
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| CN (1) | CN103346777A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580479A (en) * | 2013-10-15 | 2014-02-12 | 上海兆芯集成电路有限公司 | Voltage conversion circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050007148A1 (en) * | 2003-07-11 | 2005-01-13 | Matsushita Electric Industrial Co., Ltd. | Level shift circuit |
| CN101154941A (en) * | 2006-09-27 | 2008-04-02 | 统宝光电股份有限公司 | Level shifter with reduced power consumption |
| CN102144358A (en) * | 2008-09-04 | 2011-08-03 | 高通股份有限公司 | CMOS level shifter circuit design |
| US20130043903A1 (en) * | 2011-08-19 | 2013-02-21 | Texas Instruments Incorporated | Radiation-tolerant level shifting |
| CN203289401U (en) * | 2013-06-25 | 2013-11-13 | 四川品杰科技有限公司 | Level shift circuit of tablet personal computer |
-
2013
- 2013-06-25 CN CN2013102538940A patent/CN103346777A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050007148A1 (en) * | 2003-07-11 | 2005-01-13 | Matsushita Electric Industrial Co., Ltd. | Level shift circuit |
| CN101154941A (en) * | 2006-09-27 | 2008-04-02 | 统宝光电股份有限公司 | Level shifter with reduced power consumption |
| CN102144358A (en) * | 2008-09-04 | 2011-08-03 | 高通股份有限公司 | CMOS level shifter circuit design |
| US20130043903A1 (en) * | 2011-08-19 | 2013-02-21 | Texas Instruments Incorporated | Radiation-tolerant level shifting |
| CN203289401U (en) * | 2013-06-25 | 2013-11-13 | 四川品杰科技有限公司 | Level shift circuit of tablet personal computer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580479A (en) * | 2013-10-15 | 2014-02-12 | 上海兆芯集成电路有限公司 | Voltage conversion circuit |
| CN103580479B (en) * | 2013-10-15 | 2016-06-08 | 上海兆芯集成电路有限公司 | Voltage conversion circuit |
| CN105958822A (en) * | 2013-10-15 | 2016-09-21 | 上海兆芯集成电路有限公司 | Voltage conversion circuit |
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Application publication date: 20131009 |