CN204906322U - Power consumptive few high frequency amplifier - Google Patents
Power consumptive few high frequency amplifier Download PDFInfo
- Publication number
- CN204906322U CN204906322U CN201520689961.8U CN201520689961U CN204906322U CN 204906322 U CN204906322 U CN 204906322U CN 201520689961 U CN201520689961 U CN 201520689961U CN 204906322 U CN204906322 U CN 204906322U
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- CN
- China
- Prior art keywords
- transistor
- inductance coil
- frequency amplifier
- power supply
- inductance coils
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a power consumptive few high frequency amplifier, includes transistor, inductance coils, crystal diode, condenser, transistor's emitter ground is connected with signal input part at transistor's the base condenser through the stopping direct current, is connected with the high -frequency diode between triode base and ground, and the plus earth of this high -frequency diode, and the negative pole connects the base, makes transistor base current potential at ordinary times not be higher than 0 and lies prostrate, be connected with an inductance coils's one end on transistor's projecting pole, the anode at DC power supply, this DC power supply's negative terminal ground connection is connected on the one hand to this inductance coils's the other end through the 2nd inductance coils. The utility model discloses a transistor is off -state when no incoming signal, can reduce the electric current loss, again because of having concatenated two inductance coils between collecting electrode at transistor and the collecting electrode DC power supply, the signal that makes transistor output can obtain the biggest power output after obtaining resonance to launch through the antenna.
Description
Technical field
The utility model relates to a kind of high-frequency amplifier of little power consumption, belongs to electronic apparatus technical field.
Background technology
In the radiating circuit of radio communication, Regular History Frequency amplifying circuit amplifies signal.At present, high-frequency amplifier circuit used generally all adopts powered battery, and as everyone knows, the life-span of battery is limited, and electric current used is larger, then the life-span of battery is shorter.In the process of design high-frequency amplifier, how to reduce the operating current of transistor or how to extend the useful life of battery as far as possible, the difficult problem being Electrical Appliances Designing engineers and using amplifier technique personnel to solve, when vast Electrical Appliances Designing personnel are just making great efforts research and development and producing work, power output is large, the high-frequency amplifier of little power consumption, to meet the needs of electronics industry develop rapidly.
Summary of the invention
For overcoming the above-mentioned defect of existing high-frequency amplifier, the utility model provides a kind of high-frequency amplifier of little power consumption, in order to meet the need of work of vast electrical apparatus technology personnel, adapts to the new situations of electronics industry develop rapidly.
For solving its technical problem, the design people is in long-term reality is low-priced, by research and test of many times, finally design a kind of high-frequency amplifier of little power consumption, this amplifier comprises a transistor, two inductance coils, a crystal diode, two capacitors, a signal input part and antenna output end, its feature is: the grounded emitter of transistor, signal input part is connected with by the capacitor of a stopping direct current in the base stage of transistor, high-frequency diode is connected with between transistor base and ground, and the plus earth of this high-frequency diode, negative electrode connects base stage, make transistor base stage current potential at ordinary times not higher than 0 volt, the emitter of transistor is connected with one end of the first inductance coil, and the other end of this inductance coil is connected to the anode of DC power supply, the negativing ending grounding of this DC power supply on the one hand by the second inductance coil, the other end of the first inductance coil is directly connected with transmitting antenna, in order to power output simultaneously, go back between first inductance coil other end and ground and be connected to a by-pass capacitor.
Compared with prior art, the utility model has following features and progress:
1, transistor base stage of the present utility model is connected with the high-frequency diode determining working point, makes it be 0 volt in the base potential without transistor during input signal, in cut-off state, in order to reduce current loss;
2, between the collector electrode and collector electrode DC power supply of transistor, be serially connected with two inductance coils, after the signal that transistor is exported obtains resonance, maximum power stage can be obtained, and gone out by antenna transmission;
3, this high-frequency amplifier is by testing and testing, and proves that this high-frequency amplifier can adapt to the task of transmitter, can be used for transmitter and make high-frequency amplifier.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Wherein: TX is signal source, Q1 is transistor, C1 blocking capacitor, and C2 is by-pass capacitor, and L1 is the first inductance coil, and L2 is the second inductance coil, and VC is collector electrode DC power supply, and D is high-frequency diode, and E is antenna.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
With reference to accompanying drawing, the high-frequency amplifier of a kind of little power consumption designed, comprising: transistor Q1, the first inductance coil L1, the second inductance coil L2, blocking capacitor C1, by-pass capacitor C2, high-frequency diode D and collector electrode DC power supply VC, wherein: the model of described transistor Q1 adopts 3DG6, its grounded emitter, be connected with signal source TX after the base stage of this transistor is by the capacitor C1 of stopping direct current, be connected to the ground by the high-frequency diode D of a clamper simultaneously and connect, the plus earth of this diode, negative electrode connects base stage, the collector electrode of transistor Q1 is connected with one end of the second inductance coil L2, the other end of this second inductance coil L2 respectively with transmitting antenna E, by-pass capacitor C2 is connected with one end of the first inductance coil L1, wherein antenna E can be transmitted directly to space after receiving the signal that amplifier sends, the other end of by-pass capacitor C2 is connected to the ground, the other end of the first inductance coil L1 is connected with the positive pole of collector electrode DC power supply VC, the negative pole of collector electrode DC power supply VC is connected to the ground.
Claims (3)
1. the high-frequency amplifier of a little power consumption, it comprises transistor, inductance coil, crystal diode, capacitor, signal input part and antenna output end, it is characterized in that: the grounded emitter of described transistor, be connected with signal input part in the base stage of transistor by the capacitor of a stopping direct current, between transistor base and ground, be connected with high-frequency diode, and the plus earth of this high-frequency diode, negative electrode connects base stage, makes transistor base stage current potential at ordinary times not higher than 0 volt; The emitter of transistor is connected with one end of the first inductance coil, and the other end of this inductance coil is connected to the anode of DC power supply, the negativing ending grounding of this DC power supply on the one hand by the second inductance coil.
2. the high-frequency amplifier of a kind of little power consumption according to claim 1, is characterized in that: the other end of described first inductance coil is directly connected with transmitting antenna, in order to power output simultaneously.
3. the high-frequency amplifier of a kind of little power consumption according to claim 1, is characterized in that: go back between the other end of described first inductance coil and ground and be connected to a by-pass capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689961.8U CN204906322U (en) | 2015-11-06 | 2015-11-06 | Power consumptive few high frequency amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689961.8U CN204906322U (en) | 2015-11-06 | 2015-11-06 | Power consumptive few high frequency amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204906322U true CN204906322U (en) | 2015-12-23 |
Family
ID=54928466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689961.8U Expired - Fee Related CN204906322U (en) | 2015-11-06 | 2015-11-06 | Power consumptive few high frequency amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204906322U (en) |
-
2015
- 2015-11-06 CN CN201520689961.8U patent/CN204906322U/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: 20151223 Termination date: 20171106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |