CN104578760A - Low-power direct current-direct current boost voltage stabilizer - Google Patents
Low-power direct current-direct current boost voltage stabilizer Download PDFInfo
- Publication number
- CN104578760A CN104578760A CN201310504968.3A CN201310504968A CN104578760A CN 104578760 A CN104578760 A CN 104578760A CN 201310504968 A CN201310504968 A CN 201310504968A CN 104578760 A CN104578760 A CN 104578760A
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- Prior art keywords
- direct current
- circuit
- resistance
- pin
- boost voltage
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Classifications
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- 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
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a low-power direct current-direct current boost voltage stabilizer. The boost voltage stabilizer comprises a direct current (DC) power supply, a direct current/direct current boost voltage stabilization circuit, an output voltage regulation circuit and a boost voltage stabilization output end, wherein the model of the selected direct current/direct current boost voltage stabilization integrated circuit (IC1) is MC34063. The MC34063 direct current/direct current boost voltage stabilization integrated circuit can be used in many occasions, for example, the MC34063 direct current/direct current boost voltage stabilization integrated circuit can be used for increasing an auxiliary power supply for a power supply of equipment, and when the geometric size of the equipment is limited, a plurality of groups of power supplies are inconvenient to arrange since the equipment works outdoors or outdoor emergency charge and other situations occur, low-voltage direct current can be used for solving the problems through a voltage boosting method. The disclosed circuit structures are diverse and circuits are relatively complex, so that the use and the popularization of the integrated circuit are greatly limited. The low-power direct current-direct current boost voltage stabilizer provided by the invention has a simple debugging-free circuit and can realize the expected purpose by using a small number of common elements.
Description
Technical field
The invention belongs to electronic technology and power technique fields, is about a kind of low-power direct current/direct current booster voltage regulator.
Background technology
MC34063 is the boosting integrated regulator (DC/DC) of a maturation, it can use in a lot of occasion, as: for the power supply of equipment increases accessory power supply, device geometry is restricted or equipment works out of doors and inconvenience arrange multi-group power or out of doors the situation such as emergent charging time, all can be solved by step-up method with low-voltage DC.Partial power in recent years on computer main board is also in use.Disclosed circuit structure is varied, some circuit more complicated, thus make this integrated circuit use and popularization is very limited.Low-power direct current/direct current booster voltage regulator of the present invention is through kinds of schemes test, compares and analyze, and the present invention has and simple and direct exempts from debug circuit, only uses a small amount of common components and parts to achieve expection object.
Below describe low-power direct current/direct current booster voltage regulator relevant manufacturing technology involved in implementation process in detail.
Summary of the invention
Goal of the invention and beneficial effect: MC34063 is the boosting integrated regulator (DC/DC) of a maturation, it can use in a lot of occasion, as: for the power supply of equipment increases accessory power supply, device geometry is restricted or equipment works out of doors and inconvenience arrange multi-group power or out of doors the situation such as emergent charging time, all can be solved by step-up method with low-voltage DC.Partial power in recent years on computer main board is also in use.Disclosed circuit structure is varied, some circuit more complicated, thus make this integrated circuit use and popularization is very limited.Low-power direct current/direct current booster voltage regulator of the present invention is through kinds of schemes test, compares and analyze, and the present invention has and simple and direct exempts from debug circuit, only uses a small amount of common components and parts to achieve expection object.
Circuit working principle: when the pipe conducting of MC34063 integrated circuit (IC) chip internal switch, DC power supply DC is through 2 pin of current sampling resistor R1, energy storage inductor L1, MC34063 and 4 pin connection circuits ground, now energy storage inductor L starts stored energy, and provides energy by electrochemical capacitor C3 to load.When MC34063 chip internal switching tube disconnects, DC power supply DC and energy storage inductor L1 provides energy to load and electrochemical capacitor C3 simultaneously.Inductance is releasing energy period, and because the electromotive force polarity at its two ends is identical with electric power polarity, be equivalent to two power sources in series, the voltage thus load obtained is higher than supply voltage.The frequency of switching tube conducting and shutoff is determined by the operating frequency of chip, internal oscillator only needs an external timing capacitor, the setting of frequency of oscillation can be carried out easily, as long as the time constant long enough of this frequency relative load, load can obtain continuous print direct voltage.Resistance R3 and resistance R4 is used for setting output voltage, and resistance R1 is overcurrent protection sample resistance.
Technical scheme: low-power direct current/direct current booster voltage regulator, comprises DC power supply DC, dc/dc boost voltage stabilizing circuit, output voltage regulation circuit and boosting output end of pressure-stabilizing, it is characterized in that:
Dc/dc boost voltage stabilizing circuit: by dc/dc boost integrated regulator IC1, overcurrent protection resistance R1, timing oscillating capacitance C2, energy storage inductor L1, sustained diode 1 and electrochemical capacitor C3 form, the model that dc/dc boost integrated regulator IC1 selects is MC34063, 6th pin of dc/dc boost integrated regulator IC1 connects the positive pole of DC power supply DC, one end of overcurrent protection resistance R1 and the positive pole of electrochemical capacitor C1, the negative pole connection circuit ground GND of electrochemical capacitor C1, 7th pin of dc/dc boost integrated regulator IC1 takes over the other end of stream protective resistance R1, one end of resistance R2 and one end of energy storage inductor L1, the other end of the 8th pin connecting resistance R2 of dc/dc boost integrated regulator IC1, 1st pin of dc/dc boost integrated regulator IC1 connects the other end of energy storage inductor L1 and the positive pole of sustained diode 1, 3rd pin of dc/dc boost integrated regulator IC1 connects one end of timing oscillating capacitance C2, the other end and the circuit ground GND of the 2nd pin of dc/dc boost integrated regulator IC1 and the 4th pin and timing oscillating capacitance C2 are connected, the negative pole of sustained diode 1 connects the positive pole of electrochemical capacitor C3, the negative pole of electrochemical capacitor C3 is connected with circuit ground GND, 5th pin of dc/dc boost integrated regulator IC1 connects output voltage regulation circuit,
Output voltage regulation circuit: one end of the 5th pin connecting resistance R3 of dc/dc boost integrated regulator IC1 and one end of resistance R4, the positive pole of another termination electrochemical capacitor C3 of resistance R4, the other end connection circuit ground GND of resistance R3.
The positive pole of boosting output end of pressure-stabilizing connects the positive pole of electrochemical capacitor C3, and the negative pole of boosting output end of pressure-stabilizing is connected with circuit ground GND, and the negative pole of DC power supply DC is connected with circuit ground GND.
Accompanying drawing explanation
Accompanying drawing 1 is the embodiment circuit working schematic diagram that the invention provides a low-power direct current/direct current booster voltage regulator.
Embodiment
According to circuit working schematic diagram and the accompanying drawing explanation of low-power direct current/direct current booster voltage regulator shown in accompanying drawing 1, and according to the annexation in each several part circuit described in summary of the invention between components and parts, and the components and parts technical parameter described in execution mode requires that carrying out enforcement can realize the present invention.
Components and parts title and important technological parameters
| Element is compiled | Components and parts title | Leading indicator | Quantity | Remarks |
| IC1 | MC34063 | DIP is direct insertion | 1 | 8 pins |
| D1 | 1N5825 (Schottky diode) | 3A/40V | 1 | |
| C1 | Electrochemical capacitor | 470μF/25V | 1 | Vertical |
| C3 | Electrochemical capacitor | 470μF/25V | 1 | 680μF/25V |
| C2 | Leaded Ceramic Disc Capacitor | 1000PF | 1 | |
| L1 | Energy storage inductor (core cross section EI25) | 150μH(2A) | 1 | Or toroidal core |
| R1 | Metalfilmresistor | 0.18Ω | 1 | 2W |
| R2 | Metalfilmresistor | 180Ω | 1 | 1/4W |
| R3 | Metalfilmresistor | 2.2kΩ | 1 | 1/4W |
| R4 | Metalfilmresistor | 12～36KΩ | 1 | Adjust on demand |
Circuit production main points and circuit debugging
The making of energy storage inductor L1: FERRITE CORE selects model to be EI25, tongue cross section 6.5mm × 6.5mm, tie up with electrician's adhesive waterproof tape after completing around 32 ~ 35 circles skeleton higher slice is flat with 6 strands of Φ 0.29 ~ 0.31mm enamelled wires, then with the epoxy glues such as 504 or soak with A, B glue and seal reinforcing;
The adjustment of output voltage: the output voltage of booster circuit generally need not adjust.If desired adjust output voltage, monitor the magnitude of voltage of output port with digital voltmeter, based on adjusting resistance R4, the resistance of adjusting resistance R3 is auxiliary; Resistance R1 is overcurrent protection resistance, and its resistance larger overcurrent protection act is sensitiveer.
Technical indicator
DC power supply DC adapts to the scope of voltage: 2.5 ~ 35V;
Continuous operation output current: 1000mA (must radiator be added);
For outfield emergent charging, recommend the DC power supply using the storage battery of 6/12V, more than capacity 2AH as this device;
According to the component parameters that embodiment is recommended, the voltage 16.5V of output port, maximumly reaches 40V;
Standby current≤the 4mA of this boost-voltage regulator.
Claims (2)
1. a low-power direct current/direct current booster voltage regulator, comprises DC power supply DC, dc/dc boost voltage stabilizing circuit, output voltage regulation circuit and boosting output end of pressure-stabilizing, it is characterized in that:
Dc/dc boost voltage stabilizing circuit is by dc/dc boost integrated regulator IC1, overcurrent protection resistance R1, timing oscillating capacitance C2, energy storage inductor L1, sustained diode 1 and electrochemical capacitor C3 form, the model that dc/dc boost integrated regulator IC1 selects is MC34063, 6th pin of dc/dc boost integrated regulator IC1 connects the positive pole of DC power supply DC, one end of overcurrent protection resistance R1 and the positive pole of electrochemical capacitor C1, the negative pole connection circuit ground GND of electrochemical capacitor C1, 7th pin of dc/dc boost integrated regulator IC1 takes over the other end of stream protective resistance R1, one end of resistance R2 and one end of energy storage inductor L1, the other end of the 8th pin connecting resistance R2 of dc/dc boost integrated regulator IC1, 1st pin of dc/dc boost integrated regulator IC1 connects the other end of energy storage inductor L1 and the positive pole of sustained diode 1, 3rd pin of dc/dc boost integrated regulator IC1 connects one end of timing oscillating capacitance C2, the other end and the circuit ground GND of the 2nd pin of dc/dc boost integrated regulator IC1 and the 4th pin and timing oscillating capacitance C2 are connected, the negative pole of sustained diode 1 connects the positive pole of electrochemical capacitor C3, the negative pole of electrochemical capacitor C3 is connected with circuit ground GND, 5th pin of dc/dc boost integrated regulator IC1 connects output voltage regulation circuit,
One end of the 5th pin connecting resistance R3 of dc/dc boost integrated regulator IC1 and one end of resistance R4 in output voltage regulation circuit, the positive pole of another termination electrochemical capacitor C3 of resistance R4, the other end connection circuit ground GND of resistance R3.
2. low-power direct current/direct current booster voltage regulator according to claim 1, it is characterized in that: the positive pole of boosting output end of pressure-stabilizing connects the positive pole of electrochemical capacitor C3, the negative pole of boosting output end of pressure-stabilizing is connected with circuit ground GND, and the negative pole of DC power supply DC is connected with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504968.3A CN104578760A (en) | 2013-10-23 | 2013-10-23 | Low-power direct current-direct current boost voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310504968.3A CN104578760A (en) | 2013-10-23 | 2013-10-23 | Low-power direct current-direct current boost voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578760A true CN104578760A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310504968.3A Pending CN104578760A (en) | 2013-10-23 | 2013-10-23 | Low-power direct current-direct current boost voltage stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578760A (en) |
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2013
- 2013-10-23 CN CN201310504968.3A patent/CN104578760A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
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| WD01 | Invention patent application deemed withdrawn after publication |