CN202979073U - Wireless frequency modulated telephone microphone - Google Patents
Wireless frequency modulated telephone microphone Download PDFInfo
- Publication number
- CN202979073U CN202979073U CN 201220524019 CN201220524019U CN202979073U CN 202979073 U CN202979073 U CN 202979073U CN 201220524019 CN201220524019 CN 201220524019 CN 201220524019 U CN201220524019 U CN 201220524019U CN 202979073 U CN202979073 U CN 202979073U
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- CN
- China
- Prior art keywords
- capacitor
- resistor
- diode
- switch
- microphone
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Abstract
The utility model discloses a wireless frequency modulated telephone microphone. The wireless frequency modulated telephone microphone comprises a battery, a first switch, a second switch, a microphone, a circuit breaker, an antenna, an inductor, a first diode, a second diode, a third diode, a transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor and a ninth capacitor. The wireless frequency modulated telephone microphone has the advantages of simple circuit structure, stable performance, no noise and silence.
Description
Technical field
The utility model relates to a kind of telephone microphone, relates in particular to a kind of wireless frequency modulation telephone microphone.
Background technology
At present, mobile phone, phone have become indispensable instrument in people communicate by letter life, especially radio telephone and intercom use more, unstable due to the microphone of telephone set due to circuit voltage, the defective of performance, cause when making a phone call from noise or the phenomenon such as noiseless, make troubles to people's life of communicating by letter.
Summary of the invention
The purpose of this utility model provides a kind of wireless frequency modulation telephone microphone with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
the utility model comprises battery, the first switch, second switch, microphone, circuit breaker, antenna, inductance, the first diode, the second diode, the 3rd diode, transistor, the first resistor, the second resistor, the 3rd resistor, the 4th resistor, the 5th resistor, the 6th resistor, the first capacitor, the second capacitor, the 3rd capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th capacitor and the 9th capacitor, after described the first switch of the cathode output end of described battery series connection respectively with the positive pole of described the 3rd diode, the first end of described the 9th capacitor, the first end of described the 8th capacitor, the first end of described inductance, the first end of described the 4th capacitor be connected the first end of second switch and connect, the negative pole of described the 3rd diode is connected with the first end of described the 6th resistor, the second end of described inductance is connected with the first end of described the 5th capacitor, the second end of described the 5th capacitor respectively with the first end of described the 6th capacitor, the first end of described the 5th resistor be connected transistorized emitter and connect, the second end of described the 4th capacitor respectively with the first end of described the 7th capacitor be connected transistorized collector electrode and be connected, the second end of described the 7th capacitor is connected with described antenna, the second end of described the 4th resistor is connected with the first end of described the 3rd capacitor, described transistorized base stage is connected with the first end of described the first capacitor, the second end of described the first capacitor respectively with the negative pole of described the second diode be connected the first end of the first resistor and be connected, be connected with the first end of described microphone respectively after the second described the 3rd resistor of end series connection of described second switch, be connected with the positive pole of described the first diode after the second described the second resistor of end series connection of described the second capacitor, the second end of described the first resistor and the anodic bonding of described circuit breaker, the second end of described microphone respectively with the negative electrode of described circuit breaker, the negative pole of described the first diode, the positive pole of described the second diode, the second end of described the 3rd capacitor, the second end of described the 5th resistor, the second end of described the 6th capacitor, the second end of described the 8th capacitor, the second end of described the 9th capacitor, the second end of described the 6th resistor be connected the cathode output end of battery and connect.
The beneficial effects of the utility model are:
The utlity model has that circuit structure is simple, stable performance and noise can not occur and the advantage of the phenomenon such as noiseless.
Description of drawings
Fig. 1 is the circuit diagram of a kind of wireless frequency modulation telephone microphone described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
as shown in Figure 1: the utility model comprises battery GB, the first K switch 1, second switch K2, microphone MIC, circuit breaker CK, antenna, inductance L, the first diode D1, the second diode D2, the 3rd diode D3, transistor V1, the first resistor R1, the second resistor R2, the 3rd resistor R3, the 4th resistor R4, the 5th resistor R5, the 6th resistor R6, the first capacitor C1, the second capacitor C2, the 3rd capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8 and the 9th capacitor C9, the cathode output end of battery GB series connection the first K switch 1 rear respectively with the positive pole of the 3rd diode D3, the first end of the 9th capacitor C9, the first end of the 8th capacitor C8, the first end of inductance L, the first end of the 4th capacitor C4 is connected first end and is connected with second switch K2, the negative pole of the 3rd diode D3 is connected with the first end of the 6th resistor R6, the second end of inductance L is connected with the first end of the 5th capacitor C5, the second end of the 5th capacitor C5 respectively with the first end of the 6th capacitor C6, the first end of the 5th resistor R5 is connected emitter and is connected with transistor V1, the second end of the 4th capacitor C4 is connected collector electrode with the first end of the 7th capacitor C7 respectively and is connected with transistor V1, the second end of the 7th capacitor C7 is connected with antenna, the second end of the 4th resistor C4 is connected with the first end of the 3rd capacitor C3, the base stage of transistor V1 is connected with the first end of the first capacitor C1, the second end of the first capacitor C1 respectively with the negative pole of the second diode D2 be connected the first end of resistor R1 and be connected, be connected with the first end of microphone MIC respectively after the second end series connection the 3rd resistor R3 of second switch K2, be connected with the positive pole of the first diode D1 after second end series connection the second resistor R2 of the second capacitor C2, the second end of the first resistor R1 and the anodic bonding of circuit breaker CK, the second end of microphone MIC respectively with the negative electrode of circuit breaker CK, the negative pole of the first diode D1, the positive pole of the second diode D2, the second end of the 3rd capacitor C3, the second end of the 5th resistor R5, the second end of the 6th capacitor R6, the second end of the 8th capacitor C8, the second end of the 9th capacitor C9, the second end of the 6th resistor R6 is connected cathode output end and is connected with battery GB.
Claims (1)
1. a wireless frequency modulation telephone microphone, is characterized in that: comprise battery, the first switch, second switch, microphone, circuit breaker, antenna, inductance, the first diode, the second diode, the 3rd diode, transistor, the first resistor, the second resistor, the 3rd resistor, the 4th resistor, the 5th resistor, the 6th resistor, the first capacitor, the second capacitor, the 3rd capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th capacitor and the 9th capacitor, after described the first switch of the cathode output end of described battery series connection respectively with the positive pole of described the 3rd diode, the first end of described the 9th capacitor, the first end of described the 8th capacitor, the first end of described inductance, the first end of described the 4th capacitor be connected the first end of second switch and connect, the negative pole of described the 3rd diode is connected with the first end of described the 6th resistor, the second end of described inductance is connected with the first end of described the 5th capacitor, the second end of described the 5th capacitor respectively with the first end of described the 6th capacitor, the first end of described the 5th resistor be connected transistorized emitter and connect, the second end of described the 4th capacitor respectively with the first end of described the 7th capacitor be connected transistorized collector electrode and be connected, the second end of described the 7th capacitor is connected with described antenna, the second end of described the 4th resistor is connected with the first end of described the 3rd capacitor, described transistorized base stage is connected with the first end of described the first capacitor, the second end of described the first capacitor respectively with the negative pole of described the second diode be connected the first end of the first resistor and be connected, be connected with the first end of described microphone respectively after the second described the 3rd resistor of end series connection of described second switch, be connected with the positive pole of described the first diode after the second described the second resistor of end series connection of described the second capacitor, the second end of described the first resistor and the anodic bonding of described circuit breaker, the second end of described microphone respectively with the negative electrode of described circuit breaker, the negative pole of described the first diode, the positive pole of described the second diode, the second end of described the 3rd capacitor, the second end of described the 5th resistor, the second end of described the 6th capacitor, the second end of described the 8th capacitor, the second end of described the 9th capacitor, the second end of described the 6th resistor be connected the cathode output end of battery and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524019 CN202979073U (en) | 2012-10-15 | 2012-10-15 | Wireless frequency modulated telephone microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524019 CN202979073U (en) | 2012-10-15 | 2012-10-15 | Wireless frequency modulated telephone microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202979073U true CN202979073U (en) | 2013-06-05 |
Family
ID=48520089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524019 Expired - Fee Related CN202979073U (en) | 2012-10-15 | 2012-10-15 | Wireless frequency modulated telephone microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202979073U (en) |
-
2012
- 2012-10-15 CN CN 201220524019 patent/CN202979073U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131015 |