CN103838282B - A kind of circuit based on temperature adjustment voltage - Google Patents
A kind of circuit based on temperature adjustment voltage Download PDFInfo
- Publication number
- CN103838282B CN103838282B CN201410104061.2A CN201410104061A CN103838282B CN 103838282 B CN103838282 B CN 103838282B CN 201410104061 A CN201410104061 A CN 201410104061A CN 103838282 B CN103838282 B CN 103838282B
- Authority
- CN
- China
- Prior art keywords
- voltage
- logic switch
- temperature
- comparison module
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Amplifiers (AREA)
Abstract
The embodiment of the invention discloses a kind of circuit based on temperature adjustment voltage, the first voltage and the second voltage is pre-determined by preset temperature node, export the first voltage and reference voltage to comparison that comparison module carries out magnitude of voltage again, and export the first voltage or the second voltage according to the comparative result output signal steering logic switch corresponding with result, just achieve power amplifier switches different bias voltages function according to different preset temperatures, and then more ensure that the serviceability of power amplifier.The embodiment of the present invention comprises: band-gap reference module, logic switch and comparison module, band-gap reference module exports the first voltage and the second voltage to the first input end of logic switch and the second input end, and output reference voltage first voltage compares to comparison module, and export control signal to logic switch.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of circuit based on temperature adjustment voltage.
Background technology
Power amplifier (poweramplifier), refer under given distortion rate condition, maximum power output can be produced to drive the amplifier of a certain load, especially when in the 3G technology that power amplifier is applied in now, the control circuit of power amplifier usually uses voltage control mode to the linearity of power amplifier, and gain etc. control.
The Control of Voltage technology of existing power amplifier is normally by LDO(linear voltage regulator) bias voltage of a fixed temperature coefficient is provided to the first order of power amplifier and the second level, power amplifier can normally be worked.
But, the technology that the above-mentioned use LDO mentioned controls power amplifier, because the susceptibility of material to temperature of power amplifier is higher, therefore different temperatures needs different bias voltages, thus, use LDO to provide the design of the bias voltage of fixed temperature coefficient can not meet the technical matters of power amplifier due to the different bias voltage of the different temperatures needs of self, thus, cause power amplifier at high temperature, also or low temperature when cannot keep superperformance.
Summary of the invention
Embodiments provide a kind of circuit based on temperature adjustment voltage, the first voltage and the second voltage is pre-determined by preset temperature node, export the first voltage and reference voltage to comparison that comparison module carries out magnitude of voltage again, and export the first voltage or the second voltage according to the comparative result output signal steering logic switch corresponding with result, just achieve power amplifier switches different bias voltages function according to different preset temperatures, and then more ensure that the serviceability of power amplifier.
Embodiments provide a kind of circuit based on temperature adjustment voltage, comprising:
Band-gap reference module, logic switch and comparison module, described band-gap reference module, described logic switch is connected between two with described comparison module;
Described band-gap reference module exports the first voltage and the second voltage to the first input end of described logic switch and the second input end, and output reference voltage and described first voltage give described comparison module;
Wherein, described first voltage and described second voltage are by preset temperature node determination magnitude of voltage;
Described comparison module compares described first voltage and described reference voltage, if described first voltage is higher than described reference voltage, then export the output terminal that the first signal controls described logic switch to be connected with described second input end, if described first voltage is lower than described reference voltage, then exports the described output terminal that secondary signal controls described logic switch and be connected with described first input end.
Preferably,
Described preset temperature node is 0 DEG C.
Preferably,
Described comparison module also comprises before comparing described first voltage and described reference voltage:
Described comparison module carries out amplification process to described first voltage according to preset proportion value.
Preferably,
Described preset proportion value is the ratio value of described reference voltage and described first voltage.
Preferably,
The described circuit based on temperature adjustment voltage also comprises:
Voltage stabilizing module, is connected with the described output terminal of described logic switch, inputs to power amplifier for the voltage exported by the described output terminal of described logic switch.
Preferably,
Described comparison module compares described first voltage and described reference voltage, if described first voltage is higher than described reference voltage, then export the first signal to control described logic switch output terminal and be connected with described second input end, if described first voltage is lower than described reference voltage, then exports described output terminal that secondary signal controls described logic switch and be connected with described first input end and specifically comprise:
Described comparison module compares described first voltage and described reference voltage, if described first voltage is higher than described reference voltage, then output low level controls described logic switch and exports described second voltage by described second input end, if described first voltage is lower than described reference voltage, then exports high level and control described logic switch by described first voltage of described first input end output.
Preferably,
The voltage of described first voltage to be voltage temperature coefficient be-600ppm;
The voltage of described second voltage to be voltage temperature coefficient be-400ppm.
Preferably,
Described voltage temperature coefficient is the voltage of-600ppm is the output voltage of temperature higher than described preset temperature node.
Preferably,
Described voltage temperature coefficient is the voltage of-400ppm is that temperature is not higher than the output voltage of described preset temperature node.
Preferably,
Described comparison module is made up of operational amplifier and comparer;
Annexation set up by described operational amplifier and described comparer.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
A kind of circuit based on temperature adjustment voltage provided in the embodiment of the present invention, comprise: band-gap reference module, logic switch and comparison module, aforesaid band-gap reference module, logic switch is connected between two with comparison module, band-gap reference module exports the first voltage and the second voltage to the first input end of logic switch and the second input end, and output reference voltage and the first voltage are to comparison module, wherein, first voltage and the second voltage are by preset temperature node determination magnitude of voltage, comparison module compares the first voltage and reference voltage, if the first voltage is higher than reference voltage, the output terminal then exporting the first signal steering logic switch is connected with the second input end, if the first voltage is lower than reference voltage, the output terminal then exporting secondary signal steering logic switch is connected with first input end.In the present embodiment, the first voltage and the second voltage is pre-determined by preset temperature node, export the first voltage and reference voltage to comparison that comparison module carries out magnitude of voltage again, and export the first voltage or the second voltage according to the comparative result output signal steering logic switch corresponding with result, just solving existing LDO provides the design of the bias voltage of fixed temperature coefficient can not meet technical matters due to the different bias voltage of the different temperatures needs of self, thus maintain power amplifier further at high temperature, also or low temperature when superperformance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of structural representation that based on temperature adjust an embodiment of the circuit of voltage of Fig. 1 for providing in the embodiment of the present invention;
A kind of structural representation that based on temperature adjust another embodiment of the circuit of voltage of Fig. 2 for providing in the embodiment of the present invention;
A kind of structural representation that based on temperature adjust the comparison module of the circuit of voltage of Fig. 3 for providing in the embodiment of the present invention;
A kind of structural representation that based on temperature adjust the logic switch of the circuit of voltage of Fig. 4 for providing in the embodiment of the present invention.
Embodiment
Embodiments provide a kind of circuit based on temperature adjustment voltage, the first voltage and the second voltage is pre-determined by preset temperature node, export the first voltage and reference voltage to comparison that comparison module carries out magnitude of voltage again, and export the first voltage or the second voltage according to the comparative result output signal steering logic switch corresponding with result, just achieve power amplifier switches different bias voltages function according to different preset temperatures, and then more ensure that the serviceability of power amplifier.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, an embodiment of a kind of circuit based on temperature adjustment voltage provided in the embodiment of the present invention comprises:
Band-gap reference module 11, logic switch 12 and comparison module 13, band-gap reference module 11, logic switch 12 is connected between two with comparison module 13;
Band-gap reference module 11 exports the first voltage and the second voltage to the first input end 121 of logic switch 12 and the second input end 122, and output reference voltage and the first voltage are to comparison module 13;
Wherein, the first voltage and the second voltage are by preset temperature node determination magnitude of voltage, and be understandable that, this preset temperature node will be described in subsequent embodiment, therefore just specifically not repeat herein;
Comparison module 12 compares the first voltage and reference voltage, if the first voltage is higher than reference voltage, the output terminal 123 then exporting the first signal steering logic switch 12 is connected with the second input end 122, if the first voltage is lower than reference voltage, then the output terminal 123 exporting secondary signal steering logic switch 12 is connected with first input end 121.
A kind of circuit based on temperature adjustment voltage provided in the embodiment of the present invention, comprise: band-gap reference module 11, logic switch 12 and comparison module 13, aforesaid band-gap reference module 11, logic switch 12 is connected between two with comparison module 13, band-gap reference module 11 exports the first voltage and the second voltage to the first input end 121 of logic switch 12 and the second input end 122, and output reference voltage and the first voltage are to comparison module 13, wherein, first voltage and the second voltage are by preset temperature node determination magnitude of voltage, comparison module 13 compares the first voltage and reference voltage, if the first voltage is higher than reference voltage, the output terminal 123 then exporting the first signal steering logic switch 12 is connected with the second input end 122, if the first voltage is lower than reference voltage, the output terminal 123 then exporting secondary signal steering logic switch 12 is connected with first input end 121.In the present embodiment, the first voltage and the second voltage is pre-determined by preset temperature node, export the first voltage and reference voltage to comparison that comparison module carries out magnitude of voltage again, and export the first voltage or the second voltage according to the comparative result output signal steering logic switch 12 corresponding with result, just solving existing LDO provides the design of the bias voltage of fixed temperature coefficient can not meet the technical matters of the different bias voltage of different temperatures needs, thus maintain power amplifier further at high temperature, also or low temperature when superperformance.
The above is a kind of description carried out based on the temperature adjustment each module of circuit of voltage and the method for Voltage Cortrol to providing in the embodiment of the present invention, below the completing technology of the Voltage Cortrol participated in add-on module is described in detail, refer to Fig. 2 to Fig. 4, another embodiment of a kind of circuit based on temperature adjustment voltage provided in the embodiment of the present invention comprises:
Band-gap reference module 21, logic switch 22 and comparison module 23, band-gap reference module 21, logic switch 22 is connected between two with comparison module 23, wherein comparison module 23 is made up of operational amplifier 231 and comparer 232, and annexation set up by operational amplifier 231 and comparer 232.
Band-gap reference module 21 exports the first voltage and the second voltage to the first input end 221 of logic switch 22 and the second input end 222, and output reference voltage and the first voltage are to comparison module 23, be understandable that this reference voltage is the magnitude of voltage of a zero-temperature coefficient, this zero-temperature coefficient is known technology, does not therefore just carry out detailed repeating herein.
Wherein, first voltage and the second voltage are by preset temperature node determination magnitude of voltage, be understandable that, this preset temperature node is 0 DEG C, the voltage of aforesaid first voltage to be voltage temperature coefficient be-600ppm, the voltage of the second voltage to be voltage temperature coefficient be-400ppm, it should be noted that, can further include: aforesaid voltage temperature coefficient is the voltage of-600ppm is the output voltage of temperature higher than preset temperature node, such as being the magnitude of voltage of-600ppm higher than temperature coefficient corresponding when 0 DEG C, aforesaid voltage temperature coefficient is the voltage of-400ppm is that temperature is not higher than the output voltage of preset temperature node, such as being not the magnitude of voltage of-400ppm higher than temperature coefficient corresponding when 0 DEG C.
Comparison module 23 compares the first voltage and reference voltage, if the first voltage is higher than reference voltage, then output low level steering logic switch 22 exports the second voltage by the second input end 222, if the first voltage is lower than reference voltage, then exports high level steering logic switch 22 and export the first voltage by first input end 221.
It should be noted that, aforesaid comparison module 23 can further include before comparing the first voltage and reference voltage: the operational amplifier 231 of comparison module 23 carries out amplification process to the first voltage according to preset proportion value, is described below to operational amplifier 231 to the principle that the first voltage carries out amplifying process according to preset proportion value:
As shown in Figure 2, reference voltage is set as VBG, this VBG is as a reference voltage of the comparer 232 of comparison module 23, this reference voltage for remain invariable within the scope of any temperature, can be such as 1.2V, now, setting the first voltage is V_600ppm, the voltage of this V_600ppm to be voltage temperature coefficient be-600ppm, second voltage is V_400ppm, the voltage of this V_400ppm to be voltage temperature coefficient be-400ppm, such as V_600ppm is within the scope of temperature-30 DEG C ~ 100 DEG C, voltage change range is 1.08V ~ 0.99V, when can be set in 0 DEG C, V_600ppm is 1.08V.Due in whole temperature range V_600ppm voltage all lower than VBG, therefore after the voltage of V_600ppm needs to carry out amplification certain proportion by operational amplifier 231 to the first voltage V_600ppm, first voltage V_600ppm and reference voltage V BG compares by comparer 232 again, this operational amplifier can be a linear scaling amplifying circuit, the computing formula of aforesaid preset proportion value can be set ratio value as A, then A=VBG/V_600ppm=1.2V/1.08=1.11, therefore ratio value is 1.11, the first voltage V_600ppm that band-gap reference module exports needs the multiple being amplified this ratio value by operational amplifier 231, compared with reference voltage V BG by comparer 232 again.
In the embodiment of the present invention, can further include:
Voltage stabilizing module 24, is connected with the output terminal 223 of logic switch 22, inputs to power amplifier for the voltage exported by the output terminal 223 of logic switch 22.
In the present embodiment, the first voltage and the second voltage is pre-determined by preset temperature node, export the first voltage and reference voltage to comparison that comparison module carries out magnitude of voltage again, and export the first voltage or the second voltage according to the comparative result output signal steering logic switch 22 corresponding with result, just solving existing LDO provides the design of the bias voltage of fixed temperature coefficient can not meet the technical matters of the different bias voltage of different temperatures needs, thus maintain power amplifier further at high temperature, also or low temperature when superperformance, simultaneously, by the operational amplifier 231 of comparison module 23, first voltage is amplified according to preset proportion, further ensure that the comparer 232 of comparison module 23 is more accurate exports level signal steering logic switch 22 accurately according to comparative result.
The above is described in detail the completing technology of the Voltage Cortrol that add-on module participates in, for ease of understanding, below will with an embody rule scene, be described in detail previous embodiment, an application examples step of a kind of circuit based on temperature adjustment voltage provided in the embodiment of the present invention comprises:
A) band-gap reference module 21 exports the first voltage V_600ppm be 1.05V and the second voltage V_400ppm is that 1.08V is to the first input end 221 of logic switch 22 and the second input end 222, and output reference voltage VBG and the first voltage V_600ppm be 1.05V to comparison module 23, this reference voltage V BG is 1.2V;
B) the first voltage V_600ppm of 1.05V carries out the amplification of preset proportion value through the operational amplifier 231 of comparison module 23, this preset proportion value is for presetting, be such as 1.143, then the first voltage V_600ppm after amplifying is 1.05V × 1.143=1.20015V
C) comparer 232 operational amplifier 231 is amplified after magnitude of voltage be that the 1.2V of the first voltage V_600ppm and reference voltage V BG of 1.20015V compares, comparative result be amplify after magnitude of voltage be the 1.2V of the first voltage V_600ppm higher than reference voltage V BG of 1.20015V, then comparison module 23 output low level signal is to logic switch 22;
D), after logic switch 22 receives the low level signal of comparison module 23 output, as shown in Figure 4, the output terminal 223 of logic switch 22 is connected with the second output terminal 222;
E), after the output terminal 223 of logic switch 22 is connected with the second output terminal 222, the second voltage V_400ppm being connected band gap base modules 21 with the second output terminal 222 exports the Voltage stabilizing module 24 be connected with the output terminal 223 of logic switch 22 to;
F) to be that the second voltage V_400ppm of 1.08V is stable by magnitude of voltage export to power amplifier to Voltage stabilizing module 24.
In the present embodiment, the first voltage and the second voltage is pre-determined by preset temperature node, export the first voltage and reference voltage to comparison that comparison module carries out magnitude of voltage again, and export the first voltage or the second voltage according to the comparative result output signal steering logic switch 22 corresponding with result, just solving existing LDO provides the design of the bias voltage of fixed temperature coefficient can not meet technical matters due to the different bias voltage of the different temperatures needs of self, thus maintain power amplifier further at high temperature, also or low temperature when superperformance, simultaneously, by the operational amplifier 231 of comparison module 23, first voltage is amplified according to preset proportion, further ensure that the comparer 232 of comparison module 23 is more accurate exports level signal steering logic switch 22 accurately according to comparative result.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1., based on a circuit for temperature adjustment voltage, it is characterized in that, comprising:
Band-gap reference module, logic switch and comparison module, described band-gap reference module, described logic switch is connected between two with described comparison module;
Described band-gap reference module exports the first voltage and the second voltage to the first input end of described logic switch and the second input end, and output reference voltage and described first voltage give described comparison module;
Wherein, described first voltage and described second voltage are by preset temperature node determination magnitude of voltage;
Described comparison module compares described first voltage and described reference voltage, if described first voltage is higher than described reference voltage, then output low level controls described logic switch and exports described second voltage by described second input end, if described first voltage is lower than described reference voltage, then exports high level and control described logic switch by described first voltage of described first input end output;
Described comparison module is made up of operational amplifier and comparer;
Annexation set up by described operational amplifier and described comparer.
2. the circuit based on temperature adjustment voltage according to claim 1, it is characterized in that, described preset temperature node is 0 DEG C.
3. the circuit based on temperature adjustment voltage according to claim 1, it is characterized in that, described comparison module also comprises before comparing described first voltage and described reference voltage:
Described comparison module carries out amplification process to described first voltage according to preset proportion value.
4. the circuit based on temperature adjustment voltage according to claim 3, is characterized in that,
Described preset proportion value is the ratio value of described reference voltage and described first voltage.
5. the circuit based on temperature adjustment voltage as claimed in any of claims 1 to 4, is characterized in that, also comprise:
Voltage stabilizing module, is connected with the output terminal of described logic switch, inputs to power amplifier for the voltage exported by the described output terminal of described logic switch.
6. the circuit based on temperature adjustment voltage according to claim 1, is characterized in that,
The voltage of described first voltage to be voltage temperature coefficient be-600ppm;
The voltage of described second voltage to be voltage temperature coefficient be-400ppm.
7. the circuit based on temperature adjustment voltage according to claim 6, is characterized in that,
Described voltage temperature coefficient is the voltage of-600ppm is the output voltage of temperature higher than described preset temperature node.
8. the circuit based on temperature adjustment voltage according to claim 6, is characterized in that,
Described voltage temperature coefficient is the voltage of-400ppm is that temperature is not higher than the output voltage of described preset temperature node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104061.2A CN103838282B (en) | 2014-03-19 | 2014-03-19 | A kind of circuit based on temperature adjustment voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104061.2A CN103838282B (en) | 2014-03-19 | 2014-03-19 | A kind of circuit based on temperature adjustment voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103838282A CN103838282A (en) | 2014-06-04 |
| CN103838282B true CN103838282B (en) | 2016-02-10 |
Family
ID=50801906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410104061.2A Expired - Fee Related CN103838282B (en) | 2014-03-19 | 2014-03-19 | A kind of circuit based on temperature adjustment voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103838282B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932601B (en) * | 2015-06-26 | 2017-11-07 | 华南理工大学 | A kind of bandgap voltage reference of high PSRR |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243338A (en) * | 1985-04-22 | 1986-10-29 | Fujikura Ltd | Temperature compensation circuit for semiconductor prressure sensor |
| JP2009088581A (en) * | 2007-09-27 | 2009-04-23 | Tdk Corp | Amplifier circuit and optical pickup provided with same |
| CN101763139A (en) * | 2010-02-05 | 2010-06-30 | 上海宏力半导体制造有限公司 | Band-gap reference voltage-stabilizing circuit |
| CN103455077A (en) * | 2012-05-31 | 2013-12-18 | 华为技术有限公司 | Method, device and system for self-adaptive adjustment of voltage |
| CN103488229A (en) * | 2013-09-17 | 2014-01-01 | 电子科技大学 | Automatic fine-tuning circuit for band-gap reference |
-
2014
- 2014-03-19 CN CN201410104061.2A patent/CN103838282B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61243338A (en) * | 1985-04-22 | 1986-10-29 | Fujikura Ltd | Temperature compensation circuit for semiconductor prressure sensor |
| JP2009088581A (en) * | 2007-09-27 | 2009-04-23 | Tdk Corp | Amplifier circuit and optical pickup provided with same |
| CN101763139A (en) * | 2010-02-05 | 2010-06-30 | 上海宏力半导体制造有限公司 | Band-gap reference voltage-stabilizing circuit |
| CN103455077A (en) * | 2012-05-31 | 2013-12-18 | 华为技术有限公司 | Method, device and system for self-adaptive adjustment of voltage |
| CN103488229A (en) * | 2013-09-17 | 2014-01-01 | 电子科技大学 | Automatic fine-tuning circuit for band-gap reference |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103838282A (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8742819B2 (en) | Current limiting circuitry and method for pass elements and output stages | |
| US10061334B2 (en) | Voltage regulator | |
| WO2021093822A1 (en) | Radio frequency power amplifier, chip, and communication terminal | |
| US9323264B2 (en) | Voltage regulator apparatus with sensing modules and related operating method thereof | |
| CN206162234U (en) | Weighting current feedback's low dropout regulator | |
| US20150277458A1 (en) | Voltage regulator | |
| US9671802B2 (en) | Voltage regulator having overshoot suppression | |
| CN104423408A (en) | Voltage regulator | |
| EP3223426A1 (en) | Power control method, device and communication terminal for radio frequency power amplifier | |
| KR20160137408A (en) | Voltage regulator | |
| CN114157252B (en) | Power amplifying circuit and radio frequency signal processing method | |
| CN104331112A (en) | Low dropout linear regulator and soft starting circuit thereof | |
| CN103838282B (en) | A kind of circuit based on temperature adjustment voltage | |
| JP6253481B2 (en) | Voltage regulator and manufacturing method thereof | |
| US20110163811A1 (en) | Fast Class AB Output Stage | |
| CN109120232A (en) | Suitable for low noise, the high bandwidth trans-impedance amplifier of wide dynamic range | |
| US9442501B2 (en) | Systems and methods for a low dropout voltage regulator | |
| CN104467701A (en) | A voltage correcting method for a power amplifier and an electronic terminal | |
| CN110366713B (en) | Method and circuit system for compensating low dropout linear regulator | |
| CN105573397A (en) | Motor starting method and electronic device | |
| CN110058630B (en) | Voltage-current conversion circuit | |
| US9367073B2 (en) | Voltage regulator | |
| CN104345762A (en) | Voltage generating apparatus | |
| KR101449133B1 (en) | Low Dropout Voltage Regulator of having Multiple Error AMPs | |
| CN109116901B (en) | Linear voltage stabilizing circuit and integrated circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Zuhua Inventor after: Liu Wei Inventor before: Liu Wei |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160823 Address after: Room A603 scientific research building in the town of Nanhai District, Nanhai Software Technology Park high-tech center for Buddhist A block 528200 in Guangdong city of Foshan Province Patentee after: Foshan City Zhen Zhi Microchip Technology Co. Ltd. Address before: 510006 Guangdong city of Guangzhou province Panyu District Xiaoguwei Street West Outer Ring Road No. 100, Guangdong University of Technology Science Hall 501, 503, 505, 507, 509 Patentee before: Guangzhou Jun Heng microelectronics Science and Technology Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room A603 scientific research building in the town of Nanhai District, Nanhai Software Technology Park high-tech center for Buddhist A block 528200 in Guangdong city of Foshan Province Patentee after: FOSHAN ZHENZHIWEIXIN TECHNOLOGY CO., LTD. Address before: Room A603 scientific research building in the town of Nanhai District, Nanhai Software Technology Park high-tech center for Buddhist A block 528200 in Guangdong city of Foshan Province Patentee before: Foshan City Zhen Zhi Microchip Technology Co. Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170908 Address after: 510670 No. 11, color road, Science City, hi tech Industrial Development Zone, Guangdong, Guangzhou, A803 Patentee after: Guangzhou Jun Heng microelectronics Science and Technology Ltd. Address before: Room A603 scientific research building in the town of Nanhai District, Nanhai Software Technology Park high-tech center for Buddhist A block 528200 in Guangdong city of Foshan Province Patentee before: FOSHAN ZHENZHIWEIXIN TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20210319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |