CN204068945U - A kind of transmitter circuitry of reminding alarm device - Google Patents
A kind of transmitter circuitry of reminding alarm device Download PDFInfo
- Publication number
- CN204068945U CN204068945U CN201420578439.8U CN201420578439U CN204068945U CN 204068945 U CN204068945 U CN 204068945U CN 201420578439 U CN201420578439 U CN 201420578439U CN 204068945 U CN204068945 U CN 204068945U
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- electric capacity
- triode
- resistance
- oscillating circuit
- resonant oscillating
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Abstract
The utility model discloses a kind of transmitter circuitry of reminding alarm device, mainly solve the transmitter circuitry complex structure of existing alarm, problem that power consumption is high.The utility model comprises power supply circuits, and the first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, modulating oscillation circuit, the semifixed resistor R5 that are all connected with these power supply circuits, the electric capacity C10 be connected with modulating oscillation circuit, and the antenna be connected with this electric capacity C10; Described first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit are all connected with semifixed resistor R5 with modulating oscillation circuit.The utility model circuit is simple, frequency stabilization, low in energy consumption, improve existing alarm transmitter circuitry Problems existing well.
Description
Technical field
The utility model relates to a kind of transmitter circuitry of reminding alarm device.
Background technology
Alarm is a kind of for preventing or preventing certain event that the consequence caused occurs, and reminds or warns us should take certain electronic product of taking action with forms such as sound, light, air pressure.Existing prompting alarm forms primarily of transmitter and receiver, transmitter is transmitted by built-in aerial, if receiver can normal received signal, then alarm is not reported to the police, if receiver can not normal received signal, then can buzzer warning in triggered receiver.But the transmitter of existing prompting alarm, its internal circuit structure is comparatively complicated, and power consumption is higher, and frequency is unstable, thus needs to make improvements.
Utility model content
The purpose of this utility model is the transmitter circuitry providing a kind of reminding alarm device, mainly solves the transmitter circuitry complex structure of existing alarm, problem that power consumption is high.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of transmitter circuitry of reminding alarm device, comprise power supply circuits, and the first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, modulating oscillation circuit, the semifixed resistor R5 that are all connected with these power supply circuits, the electric capacity C10 be connected with modulating oscillation circuit, and the antenna be connected with this electric capacity C10; Described first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit are all connected with semifixed resistor R5 with modulating oscillation circuit.
Described power supply circuits comprise the battery pack E of 3V, and the switch S be connected with this battery pack E negative pole; Described first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, modulating oscillation circuit and semifixed resistor R5 are all connected with battery pack E.
The utility model also comprises the electric capacity C7 in parallel with battery pack E.
Described first multi-resonant oscillating circuit comprises the triode VT1 that model is 9011, the resistance R3 be connected with this triode VT1 base stage, the resistance R1 be connected with this triode VT1 collector electrode, and is connected to the electric capacity C1 between resistance R1 and the second multi-resonant oscillating circuit; The emitter of described triode VT1 is connected with semifixed resistor R5.
Described second multi-resonant oscillating circuit comprises the triode VT2 that model is 9011, the resistance R2 be connected with this triode VT2 base stage, the resistance R4 be connected with this triode VT2 collector electrode, and is connected to the electric capacity C1 between resistance R3 and resistance R4; The emitter of described triode VT2 is connected with semifixed resistor R5, and described electric capacity C1 is connected between resistance R2 and resistance R2.
Described modulating oscillation circuit comprises the triode VT3 that model is 9018, the electric capacity C4, electric capacity C3, resistance R7 and the semifixed resistor R6 that are all connected with this triode VT3 base stage, the resistance R8 be all connected with this triode VT3 emitter and electric capacity C5, the fine setting Leaded Ceramic Disc Capacitor C9 be connected with this triode VT3 collector electrode, the inductance L be connected with this fine setting Leaded Ceramic Disc Capacitor C9, and the electric capacity C8 be connected with this inductance L; Described electric capacity C3 is connected with resistance R4, and described inductance L is connected with electric capacity C10.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model circuit is simple, with low cost, low in energy consumption.
(2) the utility model utilizes the first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit sends signal, then taken out by electric capacity C3, and modulated by modulating oscillation circuit, finally exported by C10, then by sky alignment space radiation, not only operating frequency is little for it, and stable signal transmission, receiver can be made stably to receive signal, guarantee the normal work of whole alarm.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises power supply circuits, and the first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, modulating oscillation circuit, the semifixed resistor R5 that are all connected with these power supply circuits, the electric capacity C10 be connected with modulating oscillation circuit, and the antenna be connected with this electric capacity C10; Described first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit are all connected with semifixed resistor R5 with modulating oscillation circuit.
Described power supply circuits comprise the battery pack E of 3V, and the switch S be connected with this battery pack E negative pole; Described first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, modulating oscillation circuit and semifixed resistor R5 are all connected with battery pack E.
The utility model also comprises the electric capacity C7 in parallel with battery pack E.
Described first multi-resonant oscillating circuit comprises the triode VT1 that model is 9011, the resistance R3 be connected with this triode VT1 base stage, the resistance R1 be connected with this triode VT1 collector electrode, and is connected to the electric capacity C1 between resistance R1 and the second multi-resonant oscillating circuit; The emitter of described triode VT1 is connected with semifixed resistor R5.
Described second multi-resonant oscillating circuit comprises the triode VT2 that model is 9011, the resistance R2 be connected with this triode VT2 base stage, the resistance R4 be connected with this triode VT2 collector electrode, and is connected to the electric capacity C1 between resistance R3 and resistance R4; The emitter of described triode VT2 is connected with semifixed resistor R5, and described electric capacity C1 is connected between resistance R2 and resistance R2.
Described modulating oscillation circuit comprises the triode VT3 that model is 9018, the electric capacity C4, electric capacity C3, resistance R7 and the semifixed resistor R6 that are all connected with this triode VT3 base stage, the resistance R8 be all connected with this triode VT3 emitter and electric capacity C5, the fine setting Leaded Ceramic Disc Capacitor C9 be connected with this triode VT3 collector electrode, the inductance L be connected with this fine setting Leaded Ceramic Disc Capacitor C9, and the electric capacity C8 be connected with this inductance L; Described electric capacity C3 is connected with resistance R4, and described inductance L is connected with electric capacity C10.
During utility model works, send signal by the first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, then taken out by electric capacity C3, and modulated by modulating oscillation circuit, then exported by C10, finally by sky alignment space radiation.
Claims (6)
1. the transmitter circuitry of a reminding alarm device, it is characterized in that: comprise power supply circuits, and the first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, modulating oscillation circuit, the semifixed resistor R5 that are all connected with these power supply circuits, the electric capacity C10 be connected with modulating oscillation circuit, and the antenna be connected with this electric capacity C10; Described first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit are all connected with semifixed resistor R5 with modulating oscillation circuit.
2. the transmitter circuitry of a kind of reminding alarm device according to claim 1, is characterized in that: described power supply circuits comprise the battery pack E of 3V, and the switch S be connected with this battery pack E negative pole; Described first multi-resonant oscillating circuit, the second multi-resonant oscillating circuit, modulating oscillation circuit and semifixed resistor R5 are all connected with battery pack E.
3. the transmitter circuitry of a kind of reminding alarm device according to claim 2, is characterized in that: also comprise the electric capacity C7 in parallel with battery pack E.
4. the transmitter circuitry of a kind of reminding alarm device according to Claims 2 or 3, it is characterized in that: described first multi-resonant oscillating circuit comprises the triode VT1 that model is 9011, the resistance R3 be connected with this triode VT1 base stage, the resistance R1 be connected with this triode VT1 collector electrode, and be connected to the electric capacity C1 between resistance R1 and the second multi-resonant oscillating circuit; The emitter of described triode VT1 is connected with semifixed resistor R5.
5. the transmitter circuitry of a kind of reminding alarm device according to claim 4, it is characterized in that: described second multi-resonant oscillating circuit comprises the triode VT2 that model is 9011, the resistance R2 be connected with this triode VT2 base stage, the resistance R4 be connected with this triode VT2 collector electrode, and be connected to the electric capacity C1 between resistance R3 and resistance R4; The emitter of described triode VT2 is connected with semifixed resistor R5, and described electric capacity C1 is connected between resistance R2 and resistance R2.
6. the transmitter circuitry of a kind of reminding alarm device according to claim 5, it is characterized in that: described modulating oscillation circuit comprises the triode VT3 that model is 9018, the electric capacity C4, electric capacity C3, resistance R7 and the semifixed resistor R6 that are all connected with this triode VT3 base stage, the resistance R8 be all connected with this triode VT3 emitter and electric capacity C5, the fine setting Leaded Ceramic Disc Capacitor C9 be connected with this triode VT3 collector electrode, the inductance L be connected with this fine setting Leaded Ceramic Disc Capacitor C9, and the electric capacity C8 be connected with this inductance L; Described electric capacity C3 is connected with resistance R4, and described inductance L is connected with electric capacity C10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578439.8U CN204068945U (en) | 2014-10-09 | 2014-10-09 | A kind of transmitter circuitry of reminding alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578439.8U CN204068945U (en) | 2014-10-09 | 2014-10-09 | A kind of transmitter circuitry of reminding alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068945U true CN204068945U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420578439.8U Expired - Fee Related CN204068945U (en) | 2014-10-09 | 2014-10-09 | A kind of transmitter circuitry of reminding alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204068945U (en) |
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2014
- 2014-10-09 CN CN201420578439.8U patent/CN204068945U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20151009 |
|
| EXPY | Termination of patent right or utility model |