CN216215899U - Hunting camera power supply input circuit compatible with battery and direct-current power supply - Google Patents
Hunting camera power supply input circuit compatible with battery and direct-current power supply Download PDFInfo
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- CN216215899U CN216215899U CN202122319206.9U CN202122319206U CN216215899U CN 216215899 U CN216215899 U CN 216215899U CN 202122319206 U CN202122319206 U CN 202122319206U CN 216215899 U CN216215899 U CN 216215899U
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Abstract
The utility model discloses a hunting camera power supply input circuit compatible with a battery and a direct-current power supply, which comprises a main power supply input circuit, an auxiliary power supply detection and control enabling circuit, a main power supply switch circuit, a main reverse protection circuit, an auxiliary reverse protection circuit and an output circuit, wherein the main power supply input circuit is connected with the auxiliary power supply input circuit; the output end of the main power input is connected with the main power switch circuit, the main reverse protection circuit and the output circuit, the output end of the auxiliary power input is connected with the input end of the auxiliary reverse protection circuit, and the output end of the auxiliary reverse protection circuit is connected between the main reverse protection circuit and the output circuit; the output end of the auxiliary power supply input is also connected with an auxiliary power supply detection and control enabling circuit and a main power supply switch enabling circuit, and the output end of the main power supply switch enabling circuit is connected with the input end of the main power supply switch circuit. The input circuit compatible with the battery and the direct-current power supply is provided with the main power supply input circuit and the auxiliary power supply input circuit, so that the circuit can switch power supply according to the voltage.
Description
Technical Field
The utility model belongs to the technical field of power supply input circuits, and particularly relates to a hunting camera power supply input circuit compatible with a battery and a direct-current power supply.
Background
Fig. 1 shows a multi-channel power input circuit of a conventional hunting camera. Generally, a main input power supply is a battery input, an auxiliary input power supply is a direct-current power supply input, two power supply inputs are output after passing through diodes D1 and D2 respectively, and parallel output of the two power supplies is achieved through the mode. Such circuits have the following problems:
1. when the main input power supply voltage is higher than the auxiliary input power supply voltage, the main input power supply can be preferentially used even if the auxiliary power supply is input;
2. when the voltage of the main input power supply is close to that of the auxiliary input power supply, the two inputs are switched continuously, so that the power supply of the system is unstable.
Therefore, a new power input circuit is needed to solve the above drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a hunting camera power supply input circuit compatible with a battery and a direct-current power supply, and aims to solve the technical problem of unstable power supply of the existing input circuit.
In order to achieve the purpose, the utility model provides a hunting camera power supply input circuit compatible with a battery and a direct-current power supply, wherein the input circuit comprises a main power supply input circuit, an auxiliary power supply detection and control enabling circuit, a main power supply switch circuit, a reverse protection circuit and an output circuit, and the reverse protection circuit comprises a main reverse protection circuit and an auxiliary reverse protection circuit;
the output end of the main power input is sequentially connected with a main power switch circuit, a main reverse protection circuit and an output circuit, the output end of the auxiliary power input is connected with the input end of the auxiliary reverse protection circuit, and the output end of the auxiliary reverse protection circuit is connected between the main reverse protection circuit and the output circuit;
the output end of the auxiliary power input is also sequentially connected with an auxiliary power detection and control enabling circuit and a main power switch enabling circuit, and the output end of the main power switch enabling circuit is connected with the input end of the main power switch circuit.
Preferably, the auxiliary power supply detection and control enabling circuit comprises a resistor R201, a resistor R202 and a triode Q201, wherein the resistor R201 is connected with a base electrode of the triode Q201, one end of the resistor R202 is connected between the resistor R201 and the triode Q201, and the other end of the resistor R202 is grounded and connected with an emitter electrode of the triode Q1.
Preferably, the main power switch enabling circuit comprises a resistor R101, a resistor R102 and a transistor Q102, the resistor R101 is sequentially connected with the transistor Q102 and the resistor R102, one end of the resistor R101 is connected with a collector of the transistor Q201, and the other end of the resistor R101 is connected with a main power input.
Preferably, the main power switch circuit includes a transistor Q101 and a resistor R103, one end of the transistor Q101 is connected to the main power input, the other end is connected to the reverse protection circuit, one end of the resistor R103 is connected to the transistor Q101, and the other end is grounded.
Preferably, the main reverse protection circuit comprises a diode D101 and a diode D102, the auxiliary reverse protection circuit comprises a diode D201 and a diode D202, the diode D101 and the diode D102 are connected to the main power input, the diode D201 and the diode D201 are connected to the auxiliary power input, and the diode D101, the diode D102, the diode D201 and the diode D202 are all connected to the output circuit.
Preferably, the output circuit comprises a capacitor C101 and a capacitor C102, the capacitor C101 and the capacitor C102 are connected in parallel, one end of the capacitor C101 is connected with the main reverse protection circuit, and the other end of the capacitor C102 is grounded.
Preferably, the primary power input is a battery input.
Preferably, the auxiliary power input is a dc power input or a solar cell input or a rechargeable battery input.
Preferably, the voltage of the main power supply input and the voltage of the auxiliary power supply input are 6V-18V.
The technical scheme of the utility model has the beneficial effects that:
the utility model provides a hunting camera power supply input circuit compatible with a battery and a direct current power supply, which mainly comprises a main power supply input circuit, an auxiliary power supply detection and control enabling circuit, a main power supply switch circuit, a reverse protection circuit and an output circuit.
Drawings
FIG. 1 is a prior art circuit diagram of a hunting camera power input circuit compatible with a battery and a DC power supply according to the present invention;
FIG. 2 is a schematic block diagram of an embodiment of a hunting camera power input circuit compatible with a battery and a DC power supply according to the present invention;
FIG. 3 is a circuit diagram of an embodiment of a hunting camera power input circuit compatible with a battery and a DC power supply according to the present invention.
Detailed Description
In the following, the embodiments of the present invention will be described in detail with reference to the drawings in the following, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a hunting camera power supply input circuit compatible with a battery and a direct-current power supply, and referring to fig. 2-3, the input circuit comprises a main power supply input 100, an auxiliary power supply input 200, an auxiliary power supply detection and control enabling circuit 201, a main power supply switch enabling circuit 202, a main power supply switch circuit 101, a reverse protection circuit and an output circuit 300, and the reverse protection circuit comprises a main reverse protection circuit 103 and an auxiliary reverse protection circuit 203.
The main power input 100 is a battery input circuit, and the output end of the main power input 100 is sequentially connected with a main power switch circuit 101, a main reverse protection circuit 103 and an output circuit 300; the auxiliary power input 200 is a dc power input circuit, the output of the auxiliary power input 200 is connected to the input of the auxiliary reverse protection circuit 203, and the output of the auxiliary reverse protection circuit 203 is connected between the main reverse protection circuit 103 and the output circuit 300.
The output terminal of the auxiliary power input 200 is further connected to an auxiliary power detection and control enable circuit 201 and a main power switch enable circuit 202 in sequence, and the output terminal of the main power switch enable circuit 202 is connected to the input terminal of the main power switch circuit 101.
The utility model relates to a hunting camera power supply input circuit compatible with a battery and a direct-current power supply, which mainly comprises a main power supply input 100, an auxiliary power supply input 200, an auxiliary power supply detection and control enabling circuit 201, a main power supply switch enabling circuit 202, a main power supply switch circuit 101, a reverse protection circuit and an output circuit 300.
In a preferred embodiment, referring to fig. 2-3, the auxiliary power detection and control enabling circuit includes a resistor R201, a resistor R202, and a transistor Q201, wherein the resistor R201 is connected to a base of the transistor Q201, one end of the resistor R202 is connected between the resistor R201 and the transistor Q201, and the other end is grounded and connected to an emitter of the transistor Q1.
In a preferred embodiment, referring to fig. 2-3, the main power switch enable circuit includes a resistor R101, a resistor R102, and a transistor Q102, the resistor R101 is connected to the transistor Q102 and the resistor R102 in turn, one end of the resistor R101 is connected to the collector of the transistor Q201, and the other end is connected to the main power input.
In a preferred embodiment, referring to fig. 2-3, the main power switch circuit includes a transistor Q101 and a resistor R103, wherein one end of the transistor Q101 is connected to the main power input, the other end is connected to the reverse protection circuit, and one end of the resistor R103 is connected to the transistor Q101, and the other end is grounded.
In a preferred embodiment, referring to fig. 2-3, the primary reverse protection circuit includes a diode D101 and a diode D102, the secondary reverse protection circuit includes a diode D201 and a diode D202, the diode D101 and the diode D102 are connected to the primary power input, the diode D201 and the diode D201 are connected to the secondary power input, and the diode D101, the diode D102, the diode D201, and the diode D202 are all connected to the output circuit.
In a preferred embodiment, referring to fig. 2-3, the output circuit comprises a capacitor C101 and a capacitor C102, wherein the capacitor C101 and the capacitor C102 are connected in parallel, one end of the capacitor C101 is connected with the main reverse protection circuit, and the other end of the capacitor C102 is grounded.
In a preferred embodiment, referring to fig. 2-3, the primary power input 100 is a battery input and the secondary power input 200 is a dc power input or a solar cell input or an external rechargeable battery input.
In a preferred embodiment, the voltage of the main power input 100 and the voltage of the auxiliary power input 200 are 6V-18V with reference to fig. 2-3.
The hunting camera power supply input circuit compatible with the battery and the direct current power supply can combine different input power supply voltages into the following five conditions:
1. only the main power supply input and no auxiliary power supply input
When the circuit only has the main power input 100 and has no auxiliary power input 200, the base of the triode Q201 has no current, so that the triode Q201 cannot be conducted, the grid of the triode Q102 is high level and cannot be conducted, the grid of the triode Q101 is low level, the triode Q101 is conducted at the moment, and finally the main power current passes through the triode Q101 and then is output through the diode D101 and the diode D102, wherein the main power supply is output.
2. With only auxiliary power supply input and no main power supply input
When the circuit has only the auxiliary power input 200 and no main power input 100, the collector of the transistor Q201 has no voltage, so that the IC has no current, and the transistor Q101 and the transistor Q102 have no input voltage and cannot be conducted, and finally, the auxiliary power current must be output through the diode D201 and the diode D202. This case is the auxiliary power supply output.
3. The main power supply and the auxiliary power supply have input, but the voltage of the main power supply is lower than that of the auxiliary power supply
When the main power supply and the auxiliary power supply have input, but the main power supply voltage is lower than the auxiliary power supply voltage, the base of the triode Q201 has current, so the triode Q201 is conducted, the grid of the triode Q102 is at a low level, that is, the triode Q102 is conducted, the grid of the triode Q101 is changed into a high level, at this time, the triode Q101 is not conducted, and the main power supply current cannot be output to the diode D101 and the diode D102 through the drain of the triode Q101. At this time, since the auxiliary power source has a voltage and the main power source path is turned off by the transistor Q101, the auxiliary power source has a current output through the diode D201 and the diode D202. This case is the auxiliary power supply output.
4. The main power supply and the auxiliary power supply have input, but the voltage of the main power supply is higher than that of the auxiliary power supply
When the main power supply and the auxiliary power supply of the circuit have input, but the main power supply voltage is higher than the auxiliary power supply voltage, the base of the triode Q201 has current, so the triode Q201 is conducted, the grid of the triode Q102 is at a low level, that is, the triode Q102 is conducted, the grid of the triode Q101 is changed into a high level, at this time, the triode Q101 is not conducted, and the main power supply current cannot be output to the diode D101 and the diode D102 through the drain of the triode Q101. At this time, since the auxiliary power supply has a voltage and the main power supply path is turned off by the transistor Q101, the auxiliary power supply has a current to be output through the diode D201 and the diode D202. Thus, even if the main power supply voltage is higher than the auxiliary power supply voltage, the circuit can preferentially use the auxiliary power supply without consuming the electric energy of the main power supply, and the defects of the circuit in the figure 1 are overcome. This case is the auxiliary power supply output.
5. The main power supply and the auxiliary power supply have input, but the voltage of the main power supply is higher than the voltage of the auxiliary power supply and then discharges until the voltage is close to or lower than the voltage of the auxiliary power supply
When the main power supply voltage is higher than the auxiliary power supply voltage, the circuit operates on the working principle of the 4 th point, and the electric energy of the main power supply cannot be used; the circuit operates on the operating principle at point 3 until the main supply voltage is depleted below the auxiliary supply voltage.
In conclusion, the power input circuit of the utility model can be compatible with the battery and the direct current power supply, can select different power supply modes according to the change of the voltage, does not generate the phenomenon that the voltage of the direct current power supply is different from the voltage of the battery and the electric energy of the battery is consumed all the time, realizes the automatic switching of the battery and the direct current power supply, meets the use requirement of a hunting camera, and prolongs the service life of the battery.
The above description is only a part of or preferred embodiments of the present invention, and neither the text nor the drawings should be construed as limiting the scope of the present invention, and all equivalent structural changes, which are made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A hunting camera power input circuit compatible with a battery and a DC power supply is characterized in that: the input circuit comprises a main power input, an auxiliary power detection and control enabling circuit, a main power switch circuit, a reverse protection circuit and an output circuit, wherein the reverse protection circuit comprises a main reverse protection circuit and an auxiliary reverse protection circuit;
the output end of the main power input is sequentially connected with a main power switch circuit, a main reverse protection circuit and an output circuit, the output end of the auxiliary power input is connected with the input end of the auxiliary reverse protection circuit, and the output end of the auxiliary reverse protection circuit is connected between the main reverse protection circuit and the output circuit;
the output end of the auxiliary power input is also sequentially connected with an auxiliary power detection and control enabling circuit and a main power switch enabling circuit, and the output end of the main power switch enabling circuit is connected with the input end of the main power switch circuit.
2. The battery and dc power compatible hunting camera power input circuit according to claim 1, wherein: the auxiliary power supply detection and control enabling circuit comprises a resistor R201, a resistor R202 and a triode Q201, wherein the resistor R201 is connected with the base electrode of the triode Q201, one end of the resistor R202 is connected between the resistor R201 and the triode Q201, the other end of the resistor R202 is grounded, and the other end of the resistor R is connected with the emitting electrode of the triode Q1.
3. The battery and dc power compatible hunting camera power input circuit according to claim 1 or 2, wherein: the main power switch enabling circuit comprises a resistor R101, a resistor R102 and a triode Q102, wherein the resistor R101 is sequentially connected with the triode Q102 and the resistor R102, one end of the resistor R101 is connected with a collector of the triode Q201, and the other end of the resistor R101 is connected with a main power input.
4. A battery and dc power compatible hunting camera power input circuit according to claim 1 or 3, wherein: the main power switch circuit comprises a triode Q101 and a resistor R103, one end of the triode Q101 is connected with the main power input, the other end of the triode Q101 is connected with the reverse protection circuit, one end of the resistor R103 is connected with the triode Q101, and the other end of the resistor R103 is grounded.
5. The battery and dc power compatible hunting camera power input circuit according to claim 1, wherein: the main reverse protection circuit comprises a diode D101 and a diode D102, the auxiliary reverse protection circuit comprises a diode D201 and a diode D202, the diode D101 and the diode D102 are connected to the input of a main power supply, the diode D201 and the diode D201 are connected to the input of an auxiliary power supply, and the diode D101, the diode D102, the diode D201 and the diode D202 are all connected with an output circuit.
6. The battery and dc power compatible hunting camera power input circuit according to claim 1, wherein: the output circuit comprises a capacitor C101 and a capacitor C102, the capacitor C101 is connected with the capacitor C102 in parallel, one end of the capacitor C101 is connected with the main reverse protection circuit, and the other end of the capacitor C102 is grounded.
7. The battery and dc power compatible hunting camera power input circuit according to claim 1, wherein: the primary power input is a battery input.
8. The battery and dc power compatible hunting camera power input circuit according to claim 1, wherein: the auxiliary power input is direct current power input or solar cell input or rechargeable battery input.
9. The battery and dc power compatible hunting camera power input circuit according to claim 1, wherein: the voltage input by the main power supply and the voltage input by the auxiliary power supply are 6-18V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122319206.9U CN216215899U (en) | 2021-09-24 | 2021-09-24 | Hunting camera power supply input circuit compatible with battery and direct-current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122319206.9U CN216215899U (en) | 2021-09-24 | 2021-09-24 | Hunting camera power supply input circuit compatible with battery and direct-current power supply |
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| Publication Number | Publication Date |
|---|---|
| CN216215899U true CN216215899U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122319206.9U Active CN216215899U (en) | 2021-09-24 | 2021-09-24 | Hunting camera power supply input circuit compatible with battery and direct-current power supply |
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| CN (1) | CN216215899U (en) |
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2021
- 2021-09-24 CN CN202122319206.9U patent/CN216215899U/en active Active
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