CN109343635A - A kind of microminiature power circuit - Google Patents
A kind of microminiature power circuit Download PDFInfo
- Publication number
- CN109343635A CN109343635A CN201811358127.5A CN201811358127A CN109343635A CN 109343635 A CN109343635 A CN 109343635A CN 201811358127 A CN201811358127 A CN 201811358127A CN 109343635 A CN109343635 A CN 109343635A
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- feet
- resistance
- capacitor
- power circuit
- voltage
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of microminiature power circuits, include boost chip U1,2 feet connection one end resistance R1, the one end resistance R2 and the output voltage of U1,3 feet of U1 connect the one end inductance L1, it the 5 foot input power Vin of U1 and is connect with the resistance R1 other end, the one end capacitor C2 and the inductance L1 other end, the 10 feet connection resistance R2 other end of U1 and the one end resistance R3, resistance R3 other end ground connection, 1 foot of U1 connects the one end capacitor C1, capacitor C1 other end ground connection, 4,9 feet of U1 are grounded, and 6,7,8 feet of U1 are all connected with power supply Vin, and 2 feet of U1 are connected with filter circuit.The configuration of the present invention is simple, cost is relatively low, and can drive under very low voltage and complete voltage conversion, to solve the powerup issue of micro power.
Description
Technical field
The present invention relates to a kind of power circuit, especially a kind of microminiature power circuit.
Background technique
Solar battery is also known as " solar chip " or " photocell ", is a kind of photoelectricity using the sunlight direct generation of electricity
Wafer.As long as the illumination that it is satisfied certain illumination conditions is arrived, moment output voltage and can have the case where circuit
Lower generation electric current.Physically it is being known as photovoltaic (Photovoltaic is abbreviated as PV), abbreviation photovoltaic.Solar-electricity
Pond is the device for directly luminous energy being converted to by photoelectric effect or photochemical effect electric energy.The crystal silicon to be worked with photoelectric effect
Solar battery is mainstream, and implements solar battery then also in the budding stage with the hull cell of photochemical effect work.
Micro fuel cell is the power supply that a kind of electronic equipment uses, and chemical energy is converted into electric energy by it.Fuel cell is logical
The inflammable fuel of peroxidating such as hydrogen or alcohol operates.These energy are largely used for motor vehicles.These most of equipment
Use hydrogen.Recently, the fuel cell of diminution is developed for digital camera, portable receiver and laptop these equipment
It uses.
Both the above battery is increasingly paid attention to by people with the burning hot of new energy, however due to the particularity of the two,
It needs practice in life, and the voltage very little of power supply brought by small volume is difficult directly to be utilized, need
It brings the voltage up so as to drive other equipment, and current booster circuit itself is difficult to drive.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of microminiature power circuit, realize that the boosting of minicell is driven
It is dynamic.
In order to solve the above technical problems, the technical scheme adopted by the invention is that:
A kind of microminiature power circuit, it is characterised in that: include boost chip U1,2 feet of U1 connect the one end resistance R1, resistance R2
One end and output voltage, 3 feet of U1 connect the one end inductance L1, the 5 foot input power Vin of U1 and with the resistance R1 other end, electricity
Hold the one end C2 to connect with the inductance L1 other end, the 10 feet connection resistance R2 other end of U1 and the one end resistance R3, the resistance R3 other end
Ground connection.
Further, the boost chip U3005 uses TPS61200 voltage boost converter chip.
Further, 1 foot of the U1 connects the one end capacitor C1, capacitor C1 other end ground connection.
Further, 4, the 9 feet ground connection of the U1.
Further, 6,7,8 feet of the U1 are all connected with power supply Vin.
Further, 2 feet of the U1 are connected with filter circuit.
Further, the filter circuit includes capacitor C3, capacitor C4 and variable resistance RT1, and the 2 of the one end capacitor C3 and U1
Foot is connected with the one end variable resistance RT1, and the variable resistance RT1 other end connect with the one end capacitor C4 and exports 5V voltage, capacitor
The C3 other end and capacitor C4 other end ground connection.
Compared with prior art, the present invention having the following advantages that and effect: microminiature circuit construction of electric power letter of the invention
Single, cost is relatively low, and can drive under very low voltage and complete voltage conversion, so that the power supply for solving micro power is asked
Topic.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of microminiature power circuit of the invention.
Specific embodiment
Below by embodiment, the present invention is described in further detail, following embodiment be explanation of the invention and
The invention is not limited to following embodiments.
As shown in Figure 1, a kind of microminiature power circuit of the invention, includes boost chip U1,2 feet of U1 connect resistance R1
3 feet of one end, the one end resistance R2 and output voltage, U1 connect the one end inductance L1, the 5 foot input power Vin and and resistance of U1
The R1 other end, the one end capacitor C2 are connected with the inductance L1 other end, the 10 feet connection resistance R2 other end of U1 and the one end resistance R3, electricity
Hinder R3 other end ground connection.
Boost chip U3005 uses TPS61200 voltage boost converter chip.TPS61200 is the minimum input electricity of industry
The DC/DC boost converter of pressure, microminiature power circuit can under the input voltage less than 0.3V efficient operation, starting electricity
Pressure is also only 0.5V, it is possible to provide greater than the electric current of 600m A.
1 foot of U1 connects the one end capacitor C1, capacitor C1 other end ground connection.4,9 feet of U1 are grounded.6,7,8 feet of U1 connect
Meet power supply Vin.2 feet of U1 are connected with filter circuit.Filter circuit includes capacitor C3, capacitor C4 and variable resistance RT1, capacitor C3
2 feet and the one end variable resistance RT1 of one end and U1 connect, and the variable resistance RT1 other end connect and exports with the one end capacitor C4
5V voltage, the capacitor C3 other end and capacitor C4 other end ground connection.
The operation principle of the present invention is that: the voltage conversion of circuit relies on the switching of inductance L1 and chip interior mos pipe, will
Inductance because the voltage value that Lenz's law incudes is added the voltage after getting a promotion with supply voltage, sampling resistor R2 and R3 and
Internal reference source of stable pressure etc. forms closed loop voltage control, can stablize voltage value in controlled range.Output Voltage Formula are as follows:
Vout = ((R2 + R3)*Vfb)/R3
Wherein Vfb is the fixed reference potential of device inside, representative value 500mv.Suitable resistance is selected through overtesting, is made
The voltage of output reaches 5.01v.
Microminiature circuit construction of electric power of the invention is simple, and cost is relatively low, and can drive under very low voltage
It is converted at voltage, to solve the powerup issue of micro power.
Above content is only illustrations made for the present invention described in this specification.Technology belonging to the present invention
The technical staff in field can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, only
It should belong to guarantor of the invention without departing from the content or beyond the scope defined by this claim of description of the invention
Protect range.
Claims (7)
1. a kind of microminiature power circuit, it is characterised in that: include boost chip U1,2 feet of U1 connect the one end resistance R1, resistance
The one end R2 and output voltage, 3 feet of U1 connect the one end inductance L1, the 5 foot input power Vin of U1 and with the resistance R1 other end,
The one end capacitor C2 is connected with the inductance L1 other end, and the 10 feet connection resistance R2 other end and the one end resistance R3, resistance R3 of U1 is another
End ground connection.
2. a kind of microminiature power circuit described in accordance with the claim 1, it is characterised in that: the boost chip U3005 is used
TPS61200 voltage boost converter chip.
3. a kind of microminiature power circuit described in accordance with the claim 1, it is characterised in that: 1 foot of the U1 connects capacitor C1
One end, capacitor C1 other end ground connection.
4. a kind of microminiature power circuit described in accordance with the claim 1, it is characterised in that: 4,9 feet of the U1 are grounded.
5. a kind of microminiature power circuit described in accordance with the claim 1, it is characterised in that: 6,7,8 feet of the U1 are all connected with
Power supply Vin.
6. a kind of microminiature power circuit described in accordance with the claim 1, it is characterised in that: 2 feet of the U1 are connected with filtering
Circuit.
7. a kind of microminiature power circuit according to claim 6, it is characterised in that: the filter circuit includes capacitor
2 feet of C3, capacitor C4 and variable resistance RT1, the one end capacitor C3 and U1 and the connection of the one end variable resistance RT1, variable resistance RT1 are another
One end connect with the one end capacitor C4 and exports 5V voltage, the capacitor C3 other end and capacitor C4 other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358127.5A CN109343635A (en) | 2018-11-15 | 2018-11-15 | A kind of microminiature power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358127.5A CN109343635A (en) | 2018-11-15 | 2018-11-15 | A kind of microminiature power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109343635A true CN109343635A (en) | 2019-02-15 |
Family
ID=65315120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811358127.5A Pending CN109343635A (en) | 2018-11-15 | 2018-11-15 | A kind of microminiature power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109343635A (en) |
Citations (13)
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|---|---|---|---|---|
| US4163278A (en) * | 1976-12-17 | 1979-07-31 | Sony Corporation | Voltage supply circuit responsive to plural possible DC input levels |
| JP2010004692A (en) * | 2008-06-23 | 2010-01-07 | Mitsumi Electric Co Ltd | Flashing power supply device |
| TW201013385A (en) * | 2008-09-22 | 2010-04-01 | Richtek Technology Corp | Power management chip with dual function pin |
| CN103380498A (en) * | 2011-01-26 | 2013-10-30 | 穆罕默德·帕帕·塔拉·法尔 | Energy converting apparatus and method |
| CN203608086U (en) * | 2013-12-09 | 2014-05-21 | 无锡隆玛科技股份有限公司 | Power switching circuit of portable photovoltaic power system |
| CN104459554A (en) * | 2014-12-02 | 2015-03-25 | 河南新太行电源有限公司 | Battery cell monitoring device for high-capacity storage battery formation |
| CN204721215U (en) * | 2015-06-05 | 2015-10-21 | 宁波三星智能电气有限公司 | DC-DC change-over circuit |
| CN105979657A (en) * | 2016-06-23 | 2016-09-28 | 成都特普瑞斯节能环保科技有限公司 | White LED step-up conversion system |
| CN205646857U (en) * | 2016-03-18 | 2016-10-12 | 南京铁道职业技术学院 | Mobile power source circuit |
| CN206517299U (en) * | 2017-03-15 | 2017-09-22 | 珠海思创电气有限公司 | A kind of high-frequency and low-consumption boost module |
| CN206848849U (en) * | 2017-06-22 | 2018-01-05 | 厦门芯普力电子有限公司 | A kind of voltage-stabilized power supply of high input voltage |
| CN206878485U (en) * | 2017-03-30 | 2018-01-12 | 陕西尚品信息科技有限公司 | A kind of electricity collection charger based on low-power consumption high conversion |
| CN208999857U (en) * | 2018-11-15 | 2019-06-18 | 南京铁道职业技术学院 | A kind of microminiature power circuit |
-
2018
- 2018-11-15 CN CN201811358127.5A patent/CN109343635A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4163278A (en) * | 1976-12-17 | 1979-07-31 | Sony Corporation | Voltage supply circuit responsive to plural possible DC input levels |
| JP2010004692A (en) * | 2008-06-23 | 2010-01-07 | Mitsumi Electric Co Ltd | Flashing power supply device |
| TW201013385A (en) * | 2008-09-22 | 2010-04-01 | Richtek Technology Corp | Power management chip with dual function pin |
| CN103380498A (en) * | 2011-01-26 | 2013-10-30 | 穆罕默德·帕帕·塔拉·法尔 | Energy converting apparatus and method |
| CN203608086U (en) * | 2013-12-09 | 2014-05-21 | 无锡隆玛科技股份有限公司 | Power switching circuit of portable photovoltaic power system |
| CN104459554A (en) * | 2014-12-02 | 2015-03-25 | 河南新太行电源有限公司 | Battery cell monitoring device for high-capacity storage battery formation |
| CN204721215U (en) * | 2015-06-05 | 2015-10-21 | 宁波三星智能电气有限公司 | DC-DC change-over circuit |
| CN205646857U (en) * | 2016-03-18 | 2016-10-12 | 南京铁道职业技术学院 | Mobile power source circuit |
| CN105979657A (en) * | 2016-06-23 | 2016-09-28 | 成都特普瑞斯节能环保科技有限公司 | White LED step-up conversion system |
| CN206517299U (en) * | 2017-03-15 | 2017-09-22 | 珠海思创电气有限公司 | A kind of high-frequency and low-consumption boost module |
| CN206878485U (en) * | 2017-03-30 | 2018-01-12 | 陕西尚品信息科技有限公司 | A kind of electricity collection charger based on low-power consumption high conversion |
| CN206848849U (en) * | 2017-06-22 | 2018-01-05 | 厦门芯普力电子有限公司 | A kind of voltage-stabilized power supply of high input voltage |
| CN208999857U (en) * | 2018-11-15 | 2019-06-18 | 南京铁道职业技术学院 | A kind of microminiature power circuit |
Non-Patent Citations (1)
| Title |
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| 德州仪器: "TPS6120X具有1.3A开关的低输入电压同步升压转换器", 《德州仪器》, pages 1 - 35 * |
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