CN104393747A - Novel BOOST type DC-DC converter circuit capable of automatically turning to low power consumption and low-voltage protection states - Google Patents
Novel BOOST type DC-DC converter circuit capable of automatically turning to low power consumption and low-voltage protection states Download PDFInfo
- Publication number
- CN104393747A CN104393747A CN201410683986.7A CN201410683986A CN104393747A CN 104393747 A CN104393747 A CN 104393747A CN 201410683986 A CN201410683986 A CN 201410683986A CN 104393747 A CN104393747 A CN 104393747A
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- China
- Prior art keywords
- low
- power consumption
- voltage protection
- circuit
- boost type
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a novel BOOST type DC-DC converter circuit capable of automatically turning to low power consumption and low-voltage protection states. The novel BOOST type DC-DC converter circuit capable of automatically turning to the low power consumption and low-voltage protection states is suitable for all the BOOST type DC-DC converters on the market, when the novel BOOST type DC-DC converter circuit is connected with a load, the circuit is started automatically, and if the load is taken out or the input voltage descends to a set value, the circuit automatically enters a dormant state. The overall power consumption is smaller than 10 uA; the novel BOOST type DC-DC converter circuit capable of automatically turning to the low power consumption and low-voltage protection states realizes to automatically enter the low power consumption and low-voltage protection states and effectively solves the disadvantage of a BOOST type product due to high standby power consumption or too low voltage.
Description
[technical field]
The invention belongs to the field of Switching Power Supply, particularly relate to and a kind of new type autoly turn low-power consumption and under-voltage protection BOOST type DC-DC converter circuit.
[background technology]
Because BOOST type dc-dc stand-by power consumption is on the market all comparatively large and do not have under-voltage protection function; when input power is battery; if long-time not for battery charges; the power consumption of circuit itself easily causes battery to cross to put and cause cell damage; make battery cannot recover to use; or circuit continuous firing easily causes battery to be crossed putting, the above life-span all greatly reducing battery.Under the ever-increasing overall situation of battery utilization rate, overcome the problem of stand-by power consumption and battery cross and put just great to design proposition one challenge.
[summary of the invention]
The BOOST type dc-dc stand-by power consumption on the market mentioned for foregoing is all comparatively large and do not have under-voltage protection function, when input power is battery, if long-time not for battery charges, the power consumption of circuit itself easily causes battery to cross to put and cause cell damage, make battery cannot recover to use, or circuit continuous firing easily causes battery to be crossed putting, below the problem in the life-span of battery is all greatly reduced, the technical scheme that technical solution problem of the present invention adopts is: automatically turn low-power consumption and under-voltage protection BOOST type DC-DC converter circuit, comprise under-voltage protection part, DC-DC BOOST circuit, automatically low-power consumption start-up circuit is turned, realize automatically entering low power consumpting state and under-voltage protection by automatically turning low consumption circuit, large or the brownout of effective solution BOOST type stand-by power consumption causes the bad of product.
The technical scheme that technical solution problem of the present invention adopts further comprises:
Described under-voltage protection part; triode Q1 is in parallel with the emitter of triode Q2; R9, R10 are in parallel with the collector and emitter of Q1 respectively, and R4 one end is connected with the base stage of Q1; the other end is connected with the positive pole of electric capacity; R3 one end is connected with the collector electrode of Q1, and the other end is connected with the positive pole of electric capacity, and the negative pole of electric capacity is connected with the emitter of Q1; be connected with the positive pole of electric capacity after R1, R2 series connection.
Described DC-DC BOOST circuit, the VIN pole of inductance and chip and SW are in parallel, afterwards series diode D1, FB and R6 of the other end access chip of R5, R5, the positive pole of electric capacity C4, C5 is connected with the negative pole of D1.
Described turns low-power consumption start-up circuit automatically, and the collector electrode of the EN of R9 one end and chip, Q2 is connected, and the other end is connected with the collector electrode of Q3, the emitter of Q3 after connecting with R8 respectively with R7, (entirety of D2, D3) connects.
[accompanying drawing explanation]
Fig. 1 is circuit diagram of the present invention.
[embodiment]
Below in conjunction with embodiment, the present invention is further detailed explanation.
In order to those skilled in the art can understand technical scheme provided by the present invention better, set forth below in conjunction with specific embodiment.
Please refer to accompanying drawing 1; the present invention mainly comprises under-voltage protection part; DC-DC BOOST circuit; automatically low-power consumption start-up circuit is turned; realizing automatically entering low power consumpting state and under-voltage protection by automatically turning low consumption circuit, effectively solving the large or brownout of BOOST type stand-by power consumption and causing the bad of product.In the present embodiment, when circuit connects load, triode Q3 conducting; for the EN pin of chip provides high level circuit start, when pulling out load be, triode Q3 ends; EN pin provides low level, and circuit enters resting state, or EN pin is high level state; circuit is normal, and when input voltage is prevented higher than set point Q1 conducting Q2, EN pin maintains high level state; when input voltage prevents Q2 conducting lower than set point Q1; EN pin low level, circuit enters resting state, to reach protective effect.
Present invention utilizes and a kind of new type autoly turn low consumption circuit and under-voltage protection BOOST type DC-DC converter circuit; be applicable to general all BOOST type dc-dc on market; when connecting load; circuit starts automatically; if pull out circuit when load or input voltage drop to set point automatically can enter resting state; Overall Power Consumption is less than 10uA; realize automatically entering low power consumpting state and under-voltage protection, effectively solve the large or brownout of BOOST type stand-by power consumption and cause the bad of product.
The present embodiment is the preferred embodiment for the present invention, and other its principles all are identical with the present embodiment or approximate with basic structure, all within scope.
Claims (4)
1. one kind new type autoly turns low-power consumption and under-voltage protection BOOST type DC-DC converter circuit; it is characterized in that: described circuit comprises under-voltage protection part; DC-DC BOOST circuit; automatically low-power consumption start-up circuit is turned; realizing automatically entering low power consumpting state and under-voltage protection by automatically turning low consumption circuit, effectively solving the large or brownout of BOOST type stand-by power consumption and causing the bad of product.
2. under-voltage protection part according to claim 1; triode Q1 is in parallel with the emitter of triode Q2; R9, R10 are in parallel with the collector and emitter of Q1 respectively, and R4 one end is connected with the base stage of Q1; the other end is connected with the positive pole of electric capacity; R3 one end is connected with the collector electrode of Q1, and the other end is connected with the positive pole of electric capacity, and the negative pole of electric capacity is connected with the emitter of Q1; be connected with the positive pole of electric capacity after R1, R2 series connection.
3. DC-DC BOOST circuit according to claim 1, the VIN pole of inductance and chip and SW are in parallel, afterwards series diode D1, FB and R6 of the other end access chip of R5, R5, the positive pole of electric capacity C4, C5 is connected with the negative pole of D1.
4. according to claim 1ly automatically turn low-power consumption start-up circuit, the collector electrode of the EN of R9 one end and chip, Q2 is connected, and the other end is connected with the collector electrode of Q3, the emitter of Q3 after connecting with R8 respectively with R7, (entirety of D2, D3) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683986.7A CN104393747B (en) | 2014-11-25 | 2014-11-25 | It is a kind of to turn low-power consumption and under-voltage protection BOOST type DC DC converter circuits automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410683986.7A CN104393747B (en) | 2014-11-25 | 2014-11-25 | It is a kind of to turn low-power consumption and under-voltage protection BOOST type DC DC converter circuits automatically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104393747A true CN104393747A (en) | 2015-03-04 |
| CN104393747B CN104393747B (en) | 2017-05-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410683986.7A Active CN104393747B (en) | 2014-11-25 | 2014-11-25 | It is a kind of to turn low-power consumption and under-voltage protection BOOST type DC DC converter circuits automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104393747B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980101A (en) * | 2015-07-10 | 2015-10-14 | 广州奥鹏能源科技有限公司 | Intelligent solar cell controller and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859900Y (en) * | 2005-12-08 | 2007-01-17 | 新疆新能源股份有限公司 | Co-cathode connected intellectual solar energy charging controller |
| CN202973323U (en) * | 2012-12-17 | 2013-06-05 | 黑龙江工程学院 | Wind-energy electric heater |
| CN103973101A (en) * | 2014-05-22 | 2014-08-06 | 中山市电赢科技有限公司 | Novel DC-DC power adapter |
-
2014
- 2014-11-25 CN CN201410683986.7A patent/CN104393747B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859900Y (en) * | 2005-12-08 | 2007-01-17 | 新疆新能源股份有限公司 | Co-cathode connected intellectual solar energy charging controller |
| CN202973323U (en) * | 2012-12-17 | 2013-06-05 | 黑龙江工程学院 | Wind-energy electric heater |
| CN103973101A (en) * | 2014-05-22 | 2014-08-06 | 中山市电赢科技有限公司 | Novel DC-DC power adapter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980101A (en) * | 2015-07-10 | 2015-10-14 | 广州奥鹏能源科技有限公司 | Intelligent solar cell controller and method |
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| Publication number | Publication date |
|---|---|
| CN104393747B (en) | 2017-05-31 |
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