A FM transmitter device based on bluetooth communication

A FM transmitter and Bluetooth communication technology, applied in the circuit field, can solve problems such as short service life, waste of electric energy, and high noise of the receiver, and achieve the effect of reducing the waste of electric energy

Active Publication Date: 2022-02-22
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. All the circuits are switched on once the machine is turned on, resulting in a waste of electric energy;
[0004] 2. The signal field strength is unstable. When the signal field strength drops, the receiver will be noisy.
[0005] 3. Most of the traditional push-pull switches are used, and the service life is short

Method used

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  • A FM transmitter device based on bluetooth communication
  • A FM transmitter device based on bluetooth communication
  • A FM transmitter device based on bluetooth communication

Examples

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0020] figure 1 It is a circuit block diagram of a FM transmitter device based on Bluetooth communication according to the present invention; figure 2 It is another circuit block diagram of a FM transmitter device based on Bluetooth communication according to the present invention; image 3 It is a specific circuit connection schematic diagram of a FM transmitter device based on Bluetooth communication according to the present invention. The following combination Figure 1-Figure 3 to describe.

[0021] A FM transmitter device based on bluetooth communication, comprising:

[0022] Mobile phone comes with bluetooth communication transceiver module 1, HC-05 bluetooth communication transceiver module 2, STC89C52 single chip microcomputer signal processing circuit 3, power electronic switch control circuit 4...

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Abstract

The invention discloses a bluetooth communication-based frequency modulation transmitter device, comprising: a mobile phone with a bluetooth communication transceiver module, an HC-05 bluetooth communication transceiver module, a STC89C52 single-chip signal processing circuit, a power supply electronic switch control circuit, a third-level power amplifier, Final stage power amplifier, first stage power amplifier, second stage power amplifier, automatic gain AGC control circuit, delay AGC control circuit, MIC audio amplifier or external audio signal, voltage controlled oscillation and frequency modulation circuit, OP07 active amplifier circuit, MC145152‑2 points Frequency and phase detection circuit, MC12022AP prescaler; among them, MIC audio amplifier or external audio signal output signal to voltage-controlled oscillation and frequency modulation circuit; voltage-controlled oscillation and frequency modulation circuit output signal to MC12022AP prescaler and first-stage power amplifier ; MC12022AP prescaler output signal to MC145152‑2 frequency division and phase detection circuit.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a bluetooth-based frequency modulation transmitter device. Background technique [0002] There are problems with FM transmitters currently available in the market: [0003] 1. All the circuits are switched on once the machine is turned on, resulting in a waste of electric energy; [0004] 2. The signal field strength is unstable. When the signal field strength drops, the receiver will be noisy. [0005] 3. Most of them adopt the traditional push-pull switch, which has a short service life. Contents of the invention [0006] The object of the present invention is a FM transmitter device based on bluetooth communication, which can reduce the waste of electric energy. [0007] For realizing above-mentioned purpose of the invention, technical scheme of the present invention is: [0008] A FM transmitter device based on bluetooth communication, comprising: [0009] Mobile phone comes wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/04H04B5/02
CPCH04B1/04H04B5/02H04B2001/0416H04B2001/0491
Inventor 林德耀黄雪红
Owner FUJIAN UNIV OF TECH
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