CN216083522U - Special self-switching zero-static-power-consumption voltage-stabilized power supply for large-current output - Google Patents
Special self-switching zero-static-power-consumption voltage-stabilized power supply for large-current output Download PDFInfo
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Abstract
The utility model relates to a special self-switching zero-static-power-consumption voltage-stabilized power supply for large-current output, and belongs to the technical field of power supply of instrument devices. This special constant voltage power supply includes: the circuit comprises a resistor R0, a resistor R1, a resistor R2, a triode T1, a triode T2, a triode T3, a triode T4, a voltage regulator DW1, a diode D1 and other components. The self-switching zero-static-power-consumption high-current-output special voltage-stabilized power supply is novel in structure and low in static power consumption, namely the special voltage-stabilized power supply is started when a load switch is turned on and is automatically turned off after the load switch is turned off, so that the static power consumption of a common power supply under the condition that the load is turned off is eliminated, the service life of a battery is greatly prolonged, and the economic benefit is improved. The special voltage-stabilized power supply can automatically stabilize output voltage according to the load condition, avoids the problem that batteries need to be replaced frequently, improves economic benefits and is easy to popularize and apply.
Description
Technical Field
The utility model belongs to the technical field of power supply of instrument devices, and particularly relates to a special voltage-stabilized power supply for zero-static-power-consumption large-current output of a self-switch.
Background
The electric power instrument is used as an advanced intelligent and digital electric network front-end acquisition element, is widely applied to various control systems, SCADA (supervisory control and data acquisition) systems and energy management systems, substation automation, community electric power monitoring, industrial automation, intelligent buildings, intelligent power distribution cabinets, switch cabinets and other equipment, and has the characteristics of convenience in installation, simplicity in wiring, small engineering quantity and the like.
At present, the electric power meters mainly have 9V and 3V, but in the use process of the 3V electric power meters, liquid in a battery easily flows into an instrument panel to corrode the instrument, so that the instrument panel is damaged, and the use in the operation process of a power grid is not facilitated. In a power grid, a power meter usually works for 24h, and a battery of a 9V power meter usually can only be used for about one week, so that a power supply needs to be replaced, and time and labor are wasted. Therefore, how to overcome the defects of the prior art is a problem which needs to be solved urgently in the technical field of power supply of the current instrument device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provides a special self-switching zero-static-power-consumption high-current-output voltage-stabilized power supply.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a self-switching zero-static-power-consumption special voltage-stabilized power supply for large-current output comprises: the power supply, a resistor R0, a resistor R1, a resistor R2, a triode T1, a triode T2, a triode T3, a triode T4, a voltage regulator DW1 and a diode D1;
the positive pole of the power supply is respectively connected with one end of a resistor R0, the E pole of a triode T1, the C pole of a triode T2 and the C pole of a triode T3;
the other end of the resistor R0 is connected with the positive input end of the load;
the E pole of the triode T3 is connected with the anode of the diode D1; the cathode of the diode D1 is connected with the positive input end of the load;
the E pole of the triode T2 is connected with the B pole of the triode T3;
the C pole of the triode T1 is connected with the B pole of the triode T2;
the B pole of the triode T1 is connected with one end of a resistor R1;
the other end of the resistor R1 is connected with one end of a voltage-regulator tube DW 1;
the other end of the voltage-stabilizing tube DW1 is connected with the B pole of the triode T2;
one end of the voltage-stabilizing tube DW1 is also respectively connected with the negative electrode of the power supply, one end of the resistor R2 and the C electrode of the triode T4;
the negative electrode of the power supply is connected with the E electrode of the triode T4; the B pole of the triode T4 is connected with the negative output end of the load;
the other end of the resistor R2 is connected to the anode of the diode D1.
Further, it is preferable that the circuit further includes a resistor R3, one end of the resistor R3 is connected to the B-pole of the transistor T4, and the other end is connected to the E-pole of the transistor T4.
Further, it is preferable that the voltage regulator further includes a capacitor C1, and the capacitor C1 is connected in parallel with the voltage regulator tube DW 1.
Further, it is preferable that a capacitor C2 is further included, and the capacitor C2 is connected in parallel with the resistor R2.
Further, preferably, the power source is a plurality of rechargeable batteries.
Compared with the prior art, the utility model has the beneficial effects that:
the self-switching zero-static-power-consumption high-current-output special voltage-stabilized power supply is novel in structure and low in static power consumption, namely the special voltage-stabilized power supply is started when a load switch is turned on and is automatically turned off after the load switch is turned off, so that the static power consumption of a common power supply under the condition that the load is turned off is eliminated, the service life of a battery is greatly prolonged, and the economic benefit is improved. The special voltage-stabilized power supply can automatically stabilize output voltage according to the load condition, avoids the problem that batteries need to be replaced frequently, improves economic benefits and is easy to popularize and apply.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a special regulated power supply for zero-static power consumption and large current output of a self-switch;
FIG. 2 is a schematic diagram of a self-switching zero-static-power-consumption high-current-output special voltage-stabilized power supply; where M represents the circuit between the power supply and the load R and K is a switch.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the utility model only and should not be taken as limiting the scope of the utility model. The specific techniques, connections, conditions, or the like, which are not specified in the examples, are performed according to the techniques, connections, conditions, or the like described in the literature in the art or according to the product specification. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1 and fig. 2, a self-switching zero-static-power-consumption high-current-output special voltage-stabilized power supply includes: the power supply, a resistor R0, a resistor R1, a resistor R2, a triode T1, a triode T2, a triode T3, a triode T4, a voltage regulator DW1 and a diode D1;
the positive pole of the power supply is respectively connected with one end of a resistor R0, the E pole of a triode T1, the C pole of a triode T2 and the C pole of a triode T3;
the other end of the resistor R0 is connected with the positive input end of the load;
the E pole of the triode T3 is connected with the anode of the diode D1; the cathode of the diode D1 is connected with the positive input end of the load;
the E pole of the triode T2 is connected with the B pole of the triode T3;
the C pole of the triode T1 is connected with the B pole of the triode T2;
the B pole of the triode T1 is connected with one end of a resistor R1;
the other end of the resistor R1 is connected with one end of a voltage-regulator tube DW 1;
the other end of the voltage-stabilizing tube DW1 is connected with the B pole of the triode T2;
one end of the voltage-stabilizing tube DW1 is also respectively connected with the negative electrode of the power supply, one end of the resistor R2 and the C electrode of the triode T4;
the negative electrode of the power supply is connected with the E electrode of the triode T4; the B pole of the triode T4 is connected with the negative output end of the load;
the other end of the resistor R2 is connected to the anode of the diode D1.
Preferably, the circuit further comprises a resistor R3, wherein one end of the resistor R3 is connected to the B pole of the transistor T4, and the other end is connected to the E pole of the transistor T4.
Preferably, the voltage regulator further comprises a capacitor C1, and the capacitor C1 is connected with the voltage regulator tube DW1 in parallel.
Preferably, the capacitor C2 is further included, and the capacitor C2 is connected with the resistor R2 in parallel.
The power supply of the utility model is a plurality of rechargeable batteries, and the 12V power supply supplies 9V power supply required by the load through a voltage reduction means.
Under normal conditions, when the load is not used, the load R is in a disconnected state, namely the switch K is in an open state, the triode T4 has no IB current, the triode T1 also has no IB current, the voltage of the B electrode of the triode T2 is 0V, and at the moment, the positive input end OUT (+) of the load has no voltage output; when a load R is connected between the positive input end OUT (+), and the negative output end OUT (-) and the switch K is turned off, the positive electrode IN (+) of the power supply passes through the resistor R0, the resistor R0 is set to be a large resistor, preferably 10K omega, the current is small after passing through the resistor R0, the small current flows to the triode T4 to generate an IC current after passing through the load, the triode T1 also generates an IB current, and after amplification, most of the current flows to the voltage stabilizing tube DW1, and a small part of the current flows to the triode T3. When the load changes, the transistor T2 and the transistor T3 are equivalent to a controllable resistor, and when the output current required by the load increases, the equivalent resistor between the C pole and the E pole of the transistor T3 becomes smaller, so that the output voltage is stable and constant. When the output current required by the load is small, the equivalent resistance between the C pole and the E pole of the transistor T3 becomes large, so that the output voltage is stable and unchanged.
The diode D1 functions as a reverse protection. The resistor R0 is used for switching the circuit of the utility model to start up the voltage stabilizing circuit, and if the resistor R0 is not used, the circuit can not start up. The voltage regulator tube DW1 has the effect of stabilizing the output voltage.
The capacitor C2 is used to reduce the dynamic internal resistance of the output terminal, i.e. to reduce the voltage fluctuation of the regulated voltage output of the present invention during the load variation.
The capacitor C1 functions to reduce current ripple across the zener DW 1.
The resistor R3 is used to prevent the transistor T4 from being accidentally turned on in a strong electromagnetic field, the equivalent resistance values of the transistor T2 and the transistor T3 are reduced, and the positive input terminal OUT (+) outputs a voltage, so that the power of the power supply is consumed. The resistor R3 is relatively large, preferably 2k Ω.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A special self-switching regulated power supply with zero static power consumption and large current output is characterized by comprising: the power supply, a resistor R0, a resistor R1, a resistor R2, a triode T1, a triode T2, a triode T3, a triode T4, a voltage regulator DW1 and a diode D1;
the positive pole of the power supply is respectively connected with one end of a resistor R0, the E pole of a triode T1, the C pole of a triode T2 and the C pole of a triode T3;
the other end of the resistor R0 is connected with the positive input end of the load;
the E pole of the triode T3 is connected with the anode of the diode D1; the cathode of the diode D1 is connected with the positive input end of the load;
the E pole of the triode T2 is connected with the B pole of the triode T3;
the C pole of the triode T1 is connected with the B pole of the triode T2;
the B pole of the triode T1 is connected with one end of a resistor R1;
the other end of the resistor R1 is connected with one end of a voltage-regulator tube DW 1;
the other end of the voltage-stabilizing tube DW1 is connected with the B pole of the triode T2;
one end of the voltage-stabilizing tube DW1 is also respectively connected with the negative electrode of the power supply, one end of the resistor R2 and the C electrode of the triode T4;
the negative electrode of the power supply is connected with the E electrode of the triode T4; the B pole of the triode T4 is connected with the negative output end of the load;
the other end of the resistor R2 is connected to the anode of the diode D1.
2. The self-switching zero-quiescent-power-consumption high-current-output special voltage-stabilized power supply of claim 1, further comprising a resistor R3, wherein one end of the resistor R3 is connected to the B pole of the transistor T4, and the other end is connected to the E pole of the transistor T4.
3. The self-switching zero-static-power-consumption high-current-output special voltage-stabilized power supply of claim 1, further comprising a capacitor C1, wherein the capacitor C1 is connected with a voltage-stabilizing tube DW1 in parallel.
4. The self-switching zero-static-power-consumption high-current-output special voltage-stabilized power supply of claim 1, further comprising a capacitor C2, wherein the capacitor C2 is connected with the resistor R2 in parallel.
5. The self-switching zero-quiescent power consumption high current output dedicated regulated power supply of claim 1, wherein said power supply is a plurality of rechargeable batteries.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122179767.3U CN216083522U (en) | 2021-09-09 | 2021-09-09 | Special self-switching zero-static-power-consumption voltage-stabilized power supply for large-current output |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122179767.3U CN216083522U (en) | 2021-09-09 | 2021-09-09 | Special self-switching zero-static-power-consumption voltage-stabilized power supply for large-current output |
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| CN216083522U true CN216083522U (en) | 2022-03-18 |
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| CN202122179767.3U Active CN216083522U (en) | 2021-09-09 | 2021-09-09 | Special self-switching zero-static-power-consumption voltage-stabilized power supply for large-current output |
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