CN205212703U - A intelligent steady voltage switching power supply for portable electrocardio appearance - Google Patents
A intelligent steady voltage switching power supply for portable electrocardio appearance Download PDFInfo
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- CN205212703U CN205212703U CN201520966762.7U CN201520966762U CN205212703U CN 205212703 U CN205212703 U CN 205212703U CN 201520966762 U CN201520966762 U CN 201520966762U CN 205212703 U CN205212703 U CN 205212703U
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Abstract
The utility model discloses an intelligent steady voltage switching power supply for portable electrocardio appearance, combine MOS pipe Q1 including electric capacity C1, chip IC1, inductance L, electric capacity C4, electric capacity C5, electric capacity C6, resistance R5, resistance R7, resistance R9 and chip IC1's pin 8 is connected to connect E's positive pole, inductance L and chip IC1's pin 6 of electric capacity C1's one end, electric capacity C1's the other end, chip IC1's pin 5 connecting resistance R1, and electric capacity C2, electric capacity C4, resistance R2 and chip IC1's pin 4 is connected to resistance R1's the other end. The utility model discloses an intelligent steady voltage switching power supply for portable electrocardio appearance simple structure, components and parts are few, utilize power drive dedicated chip as the master element, and the break -make through the control model changes the energy storage condition among the inductance coils, and then has realized regulated output voltage's purpose, has increased the stability and the accuracy of portable electrocardio appearance, therefore have the advantage of with low costs, convenient to use and stable performance.
Description
Technical field
The utility model relates to a kind of Switching Power Supply, specifically a kind of Intellight voltage-stabilizing Switching Power Supply for portable electrocardiogram equipment.
Background technology
In recent years, along with progress and the expanding economy of society, the progressively raising of living standard, and China's population aging degree is more and more serious, the incidence of disease of the disease of heart disease one class constantly rises, and has a strong impact on the healthy of people, becomes the first factor threatening human health.But conventional cardiac monitoring equipment has volume heaviness, expensive and be not easy to the limitation of carrying, along with the raising of social life level, portable electrocardiograph has that volume is little, price is low, easy to use, the advantage such as to carry and receive liking of cardiac, but there is shortcoming in electrocardiogram equipment in the market on Power Management Design, common batteries is mostly only used directly to power, voltage instability can affect the precision of electrocardio test, may cause serious consequence.
Utility model content
The purpose of this utility model is to provide a kind of Intellight voltage-stabilizing Switching Power Supply for portable electrocardiogram equipment, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
For an Intellight voltage-stabilizing Switching Power Supply for portable electrocardiogram equipment, comprise electric capacity C1, chip IC 1, inductance L is in conjunction with metal-oxide-semiconductor Q1, and one end of described electric capacity C1 connects the positive pole of power supply E, the pin 6 of inductance L and chip IC 1, the other end of electric capacity C1 connects electric capacity C4, electric capacity C5, electric capacity C6, resistance R5, resistance R7, the pin 8 of resistance R9 and chip IC 1, the other end of the pin 5 contact resistance R1 of chip IC 1, resistance R1 connects electric capacity C2, electric capacity C4, the pin 4 of resistance R2 and chip IC 1, the other end of the other end contact resistance R2 of electric capacity C2, the other end of electric capacity C6, the other end of resistance R5, the pin 3 of resistance R6 and chip IC 1, the other end of the pin 1 contact resistance R3 of chip IC 1 and electric capacity C3, resistance R3 connects the other end of electric capacity C3, resistance R8, the other end of resistance R9 and the pin 2 of chip IC 1, the pin 7 contact resistance R4 of chip IC 1, the other end of resistance R4 connects the grid of metal-oxide-semiconductor Q1, the other end of other end contact resistance R7 of resistance R6 and the source electrode of metal-oxide-semiconductor Q1, the drain electrode of metal-oxide-semiconductor Q1 connects the anode of diode D1 and the other end of inductance L, the other end of the negative electrode contact resistance R8 of diode D1, the other end of electric capacity C5 and output voltage U1, the model of described chip IC 1 is UC3842.
As preferred version of the present utility model: described power supply E is 4 joint No. 5 dry cells.
Compared with prior art, the beneficial effects of the utility model are: the utility model is simple for the Intellight voltage-stabilizing Switching Power Supply structure of portable electrocardiogram equipment, components and parts are few, utilize power drives special chip as master element, the energy storage situation in inductance coil is changed by the break-make of control model, and then achieve the object of regulated output voltage, add stability and the accuracy of portable electrocardiogram equipment, therefore there is the advantage of low, the easy to use and stable performance of cost.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the Intellight voltage-stabilizing Switching Power Supply for portable electrocardiogram equipment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of Intellight voltage-stabilizing Switching Power Supply for portable electrocardiogram equipment, comprises electric capacity C1, chip IC 1, inductance L is in conjunction with metal-oxide-semiconductor Q1, and one end of described electric capacity C1 connects the positive pole of power supply E, the pin 6 of inductance L and chip IC 1, the other end of electric capacity C1 connects electric capacity C4, electric capacity C5, electric capacity C6, resistance R5, resistance R7, the pin 8 of resistance R9 and chip IC 1, the other end of the pin 5 contact resistance R1 of chip IC 1, resistance R1 connects electric capacity C2, electric capacity C4, the pin 4 of resistance R2 and chip IC 1, the other end of the other end contact resistance R2 of electric capacity C2, the other end of electric capacity C6, the other end of resistance R5, the pin 3 of resistance R6 and chip IC 1, the other end of the pin 1 contact resistance R3 of chip IC 1 and electric capacity C3, resistance R3 connects the other end of electric capacity C3, resistance R8, the other end of resistance R9 and the pin 2 of chip IC 1, the pin 7 contact resistance R4 of chip IC 1, the other end of resistance R4 connects the grid of metal-oxide-semiconductor Q1, the other end of other end contact resistance R7 of resistance R6 and the source electrode of metal-oxide-semiconductor Q1, the drain electrode of metal-oxide-semiconductor Q1 connects the anode of diode D1 and the other end of inductance L, the other end of the negative electrode contact resistance R8 of diode D1, the other end of electric capacity C5 and output voltage U1, the model of described chip IC 1 is UC3842.
Power supply E is 4 joint No. 5 dry cells.
Operation principle of the present utility model is: the voltage that power supply E exports both had supplied chip IC 1, supplied boosting inverter again.The frequency period opening and closing that metal-oxide-semiconductor Q1 sets with UC3842, makes inductance L storage power and releases energy.When switching tube conducting, inductance charges, energy storage in L with the speed of E/L.When switch ends, L produces reverse induction voltage, by diode D, the electric energy stored is discharged in output capacitor C5 with the speed of (U1-E)/L.Voltage after resistance R8 and resistance R9 dividing potential drop is as detecting 2 pin of Voltage Feedback to chip IC 1, therefore when output voltage U1 changes, be added in chip IC 12 pin voltage also can change thereupon, the angle of flow of metal-oxide-semiconductor Q1 changes, thus control the velocity of discharge of inductance L, reach the object of regulated output voltage.
Claims (2)
1., for an Intellight voltage-stabilizing Switching Power Supply for portable electrocardiogram equipment, comprise electric capacity C1, chip IC 1, inductance L, in conjunction with metal-oxide-semiconductor Q1, is characterized in that, one end of described electric capacity C1 connects the positive pole of power supply E, the pin 6 of inductance L and chip IC 1, the other end of electric capacity C1 connects electric capacity C4, electric capacity C5, electric capacity C6, resistance R5, resistance R7, the pin 8 of resistance R9 and chip IC 1, the other end of the pin 5 contact resistance R1 of chip IC 1, resistance R1 connects electric capacity C2, electric capacity C4, the pin 4 of resistance R2 and chip IC 1, the other end of the other end contact resistance R2 of electric capacity C2, the other end of electric capacity C6, the other end of resistance R5, the pin 3 of resistance R6 and chip IC 1, the other end of the pin 1 contact resistance R3 of chip IC 1 and electric capacity C3, resistance R3 connects the other end of electric capacity C3, resistance R8, the other end of resistance R9 and the pin 2 of chip IC 1, the pin 7 contact resistance R4 of chip IC 1, the other end of resistance R4 connects the grid of metal-oxide-semiconductor Q1, the other end of other end contact resistance R7 of resistance R6 and the source electrode of metal-oxide-semiconductor Q1, the drain electrode of metal-oxide-semiconductor Q1 connects the anode of diode D1 and the other end of inductance L, the other end of the negative electrode contact resistance R8 of diode D1, the other end of electric capacity C5 and output voltage U1, the model of described chip IC 1 is UC3842.
2. according to a kind of Intellight voltage-stabilizing Switching Power Supply for portable electrocardiogram equipment according to claim 1, it is characterized in that, described power supply E is 4 joint No. 5 dry cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966762.7U CN205212703U (en) | 2015-11-27 | 2015-11-27 | A intelligent steady voltage switching power supply for portable electrocardio appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520966762.7U CN205212703U (en) | 2015-11-27 | 2015-11-27 | A intelligent steady voltage switching power supply for portable electrocardio appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205212703U true CN205212703U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520966762.7U Active CN205212703U (en) | 2015-11-27 | 2015-11-27 | A intelligent steady voltage switching power supply for portable electrocardio appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205212703U (en) |
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2015
- 2015-11-27 CN CN201520966762.7U patent/CN205212703U/en active Active
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