CN202424514U - Small-power direct-current-to-direct-current boosting voltage stabilizer - Google Patents
Small-power direct-current-to-direct-current boosting voltage stabilizer Download PDFInfo
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- CN202424514U CN202424514U CN2012200663082U CN201220066308U CN202424514U CN 202424514 U CN202424514 U CN 202424514U CN 2012200663082 U CN2012200663082 U CN 2012200663082U CN 201220066308 U CN201220066308 U CN 201220066308U CN 202424514 U CN202424514 U CN 202424514U
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Abstract
The utility model relates to a small-power direct-current-to-direct-current boosting voltage stabilizer. The boosting voltage stabilizer comprises a direct current power supply DC (direct current), a direct current/direct current boosting voltage stabilizing circuit, an output voltage regulating circuit and a boosting voltage-stabilizing output end, wherein the selected type of a direct current/direct current boosting voltage-stabilizing integrated circuit IC1 is MC34063. The MC34063 can be used in multiple occasions, for example, an auxiliary power source is added for a power supply of equipment, the physical dimension of the equipment is limited or the arrangement of multiple groups of power sources is inconvenient if the equipment works in the open air or emergency charge is carried out in the open air, and the conditions all can be solved by utilizing low voltage direct current through a lifting pressure method. The public circuit structure is varied and the circuit is relatively complicated, and thus the use and the popularization of the integrated circuit are limited greatly. The small-power direct-current-to-direct current boosting voltage stabilizer provided by the utility model has a simple debugging-free circuit, and only uses a few of common components to realize the expected purpose.
Description
Technical field
The utility model belongs to electronic technology and power technique fields, is to become the DC boosting pressurizer about a kind of small-power direct current.
Background technology
MC34063 is the integrated regulator that boosts (DC/DC) of a maturation; It can use in a lot of occasions; As: be the power supply increase accessory power supply of equipment; Device geometry is restricted or equipment is worked out of doors and inconvenience is provided with multi-group power or out of doors during situation such as emergent charging, all can solve through step-up method with low-voltage DC.Part power supply on the computer main board is also using in recent years.Disclosed circuit structure is varied, the circuit more complicated that has, thereby make this integrated circuit use and popularization is very limited.The described small-power direct current of the utility model becomes the DC boosting pressurizer and is through the kinds of schemes test, compares and analysis, the utlity model has the simple and direct debug circuit of exempting from, and only uses a small amount of common components and parts to realize intended purposes.
Below specify the small-power direct current and become DC boosting pressurizer related relevant manufacturing technology in implementation process.
The utility model content
Goal of the invention and beneficial effect: MC34063 is the integrated regulator that boosts (DC/DC) of a maturation; It can use in a lot of occasions; As: be the power supply increase accessory power supply of equipment; Device geometry is restricted or equipment is worked out of doors and inconvenience is provided with multi-group power or out of doors during situation such as emergent charging, all can solve through step-up method with low-voltage DC.Part power supply on the computer main board is also using in recent years.Disclosed circuit structure is varied, the circuit more complicated that has, thereby make this integrated circuit use and popularization is very limited.The described small-power direct current of the utility model becomes the DC boosting pressurizer and is through the kinds of schemes test, compares and analysis, the utlity model has the simple and direct debug circuit of exempting from, and only uses a small amount of common components and parts to realize intended purposes.
Circuit working principle: when the conducting of MC34063 IC chip internal switch pipe; DC power supply DC is through 2 pin and the 4 pin connection circuit ground of current sampling resistor R1, energy storage inductor L1, MC34063; This moment, energy storage inductor L began stored energy, and to load energy was provided by electrochemical capacitor C3.When MC34063 chip internal switching tube broke off, DC power supply DC and energy storage inductor L1 provided energy for simultaneously load and electrochemical capacitor C3.Inductance is during releasing energy, because the electromotive force polarity at its two ends is identical with electric power polarity, be equivalent to two power supply series connection, thereby the voltage that obtains in the load is higher than supply voltage.The frequency of switching tube conducting and shutoff is by the operating frequency decision of chip; Internal oscillator only needs an external timing capacitor; The time constant long enough of the relative load of this frequency can carry out the setting of frequency of oscillation easily, as long as can obtain continuous direct voltage in the load.Resistance R 3 is used for setting output voltage with resistance R 4, and resistance R 1 is the overcurrent protection sample resistance.
Technical scheme: the small-power direct current becomes the DC boosting pressurizer, comprises DC power supply DC, dc/dc boost voltage stabilizing circuit, output voltage regulation circuit and the output end of pressure-stabilizing that boosts, and it is characterized in that:
Dc/dc boost voltage stabilizing circuit: form by dc/dc boost integrated regulator IC1, overcurrent protection resistance R 1, timing oscillating capacitance C2, energy storage inductor L1, sustained diode 1 and electrochemical capacitor C3; The model that dc/dc boost integrated regulator IC1 selects for use is MC34063; The 6th pin of dc/dc boost integrated regulator IC1 connects the positive pole of DC power supply DC, an end of overcurrent protection resistance R 1 and the positive pole of electrochemical capacitor C1; The negative pole connection circuit ground GND of electrochemical capacitor C1; The 7th pin of dc/dc boost integrated regulator IC1 is taken over the other end, an end of resistance R 2 and the end of energy storage inductor L1 of stream protective resistance R1; The other end of the 8th pin connecting resistance R2 of dc/dc boost integrated regulator IC1; The 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; The 3rd pin of dc/dc boost integrated regulator IC1 connects the regularly end of oscillating capacitance C2, and the 2nd pin of dc/dc boost integrated regulator IC1 links to each other with the other end and the circuit ground GND of timing oscillating capacitance C2 with the 4th pin, and the negative pole of sustained diode 1 connects the positive pole of electrochemical capacitor C3; The negative pole of electrochemical capacitor C3 links to each other with circuit ground GND, and the 5th pin of dc/dc boost integrated regulator IC1 connects output voltage regulation circuit;
Output voltage regulation circuit: the end of the 5th pin connecting resistance R3 of dc/dc boost integrated regulator IC1 and an end of resistance R 4, the positive pole of another termination electrochemical capacitor C3 of resistance R 4, the other end connection circuit ground GND of resistance R 3.
The positive pole of output end of pressure-stabilizing of boosting connects the positive pole of electrochemical capacitor C3, and the negative pole of the output end of pressure-stabilizing that boosts links to each other with circuit ground GND, and the negative pole of DC power supply DC links to each other with circuit ground GND.
Description of drawings
Accompanying drawing 1 is that the utility model provides a small-power direct current to become the embodiment circuit working schematic diagram of DC boosting pressurizer.
Embodiment
Become the circuit working schematic diagram and the description of drawings of DC boosting pressurizer according to small-power direct current shown in the accompanying drawing 1; And according to the annexation between the components and parts in the described each several part circuit of utility model content, and the components and parts technical parameter described in the execution mode requires to implement to realize the utility model.
Components and parts title and important technological parameters
| Element is compiled | The components and parts title | Leading indicator | Quantity | Remarks | |
| IC1 | MC34063 | DIP is |
1 | 8 pins | |
| D1 | 1N5825 (Schottky diode) | 3A/ |
1 | ||
| C1 | Electrochemical capacitor | 470μF/ |
1 | Vertical | |
| C3 | Electrochemical capacitor | 470μF/ |
1 | 680μF/25V | |
| C2 | Leaded Ceramic | 1000PF | 1 | ||
| L1 | Energy storage inductor (magnetic core cross section EI25) | 150μH(2A) | 1 | Or toroidal core | |
| R1 | Metalfilmresistor | 0.18 |
1 | 2W | |
| R2 | Metalfilmresistor | |
1 | 1/4W | |
| R3 | Metalfilmresistor | 2.2 |
1 | 1/4W | |
| R4 | Metalfilmresistor | 12～ |
1 | Adjustment on demand |
Circuit production main points and circuit debugging
The making of energy storage inductor L1: it is EI25 that FERRITE CORE is selected model for use; Tongue cross section 6.5mm * 6.5mm; Flat around 32～35 circles at the skeleton higher slice with 6 strands of Φ 0.29～0.31mm enamelled wires, tie up with electrician's adhesive waterproof tape the back that completes, and soaks the envelope reinforcing with 504 epoxy glues such as grade or with A, B glue again;
The adjustment of output voltage: the output voltage of booster circuit generally need not be adjusted.If need the adjustment output voltage, with the magnitude of voltage of digital voltmeter supervision output port, be main with adjustment resistance R 4, the resistance of adjustment resistance R 3 is auxilliary; Resistance R 1 is overcurrent protection resistance, and the big more overcurrent protection action of its resistance is just sensitiveer.
Technical indicator
DC power supply DC adapts to the scope of voltage: 2.5～35V;
Continuous operation output current: 1000mA (must add radiator);
Be used for the outfield emergent charging, recommend with the DC power supply of the storage battery more than 6/12V, the capacity 2AH as this device;
According to the component parameters that embodiment recommends, the voltage >=16.5V of output port, maximum can reach 40V;
Standby current≤the 4mA of this boost-voltage regulator.
Claims (2)
1. a small-power direct current becomes the DC boosting pressurizer, comprises DC power supply DC, dc/dc boost voltage stabilizing circuit, output voltage regulation circuit and the output end of pressure-stabilizing that boosts, and it is characterized in that:
The dc/dc boost voltage stabilizing circuit is made up of dc/dc boost integrated regulator IC1, overcurrent protection resistance R 1, timing oscillating capacitance C2, energy storage inductor L1, sustained diode 1 and electrochemical capacitor C3; The model that dc/dc boost integrated regulator IC1 selects for use is MC34063; The 6th pin of dc/dc boost integrated regulator IC1 connects the positive pole of DC power supply DC, an end of overcurrent protection resistance R 1 and the positive pole of electrochemical capacitor C1; The negative pole connection circuit ground GND of electrochemical capacitor C1; The 7th pin of dc/dc boost integrated regulator IC1 is taken over the other end, an end of resistance R 2 and the end of energy storage inductor L1 of stream protective resistance R1; The other end of the 8th pin connecting resistance R2 of dc/dc boost integrated regulator IC1; The 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; The 3rd pin of dc/dc boost integrated regulator IC1 connects the regularly end of oscillating capacitance C2, and the 2nd pin of dc/dc boost integrated regulator IC1 links to each other with the other end and the circuit ground GND of timing oscillating capacitance C2 with the 4th pin, and the negative pole of sustained diode 1 connects the positive pole of electrochemical capacitor C3; The negative pole of electrochemical capacitor C3 links to each other with circuit ground GND, and the 5th pin of dc/dc boost integrated regulator IC1 connects output voltage regulation circuit;
The end of the 5th pin connecting resistance R3 of dc/dc boost integrated regulator IC1 and an end of resistance R 4 in the output voltage regulation circuit, the positive pole of another termination electrochemical capacitor C3 of resistance R 4, the other end connection circuit ground GND of resistance R 3.
2. small-power direct current according to claim 1 becomes the DC boosting pressurizer; It is characterized in that: the positive pole of the output end of pressure-stabilizing that boosts connects the positive pole of electrochemical capacitor C3; The negative pole of output end of pressure-stabilizing of boosting links to each other with circuit ground GND, and the negative pole of DC power supply DC links to each other with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200663082U CN202424514U (en) | 2012-02-27 | 2012-02-27 | Small-power direct-current-to-direct-current boosting voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200663082U CN202424514U (en) | 2012-02-27 | 2012-02-27 | Small-power direct-current-to-direct-current boosting voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424514U true CN202424514U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200663082U Expired - Fee Related CN202424514U (en) | 2012-02-27 | 2012-02-27 | Small-power direct-current-to-direct-current boosting voltage stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283286A (en) * | 2014-10-28 | 2015-01-14 | 周芸 | USB digital device mobile power supply |
-
2012
- 2012-02-27 CN CN2012200663082U patent/CN202424514U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283286A (en) * | 2014-10-28 | 2015-01-14 | 周芸 | USB digital device mobile power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20130227 |