Wireless Circuit Diagram_Circuit Diagram World

FM wireless microphone circuit with voltage regulator circui

2016-11-05 06:44:2671

The circuit consists of three parts: 1 . Audio amplifier section; 2 . High-frequency oscillation part; 3 . Regulators parts. The signal is sent into a ...
The 40-line medical use wireless calling system circuit

2016-11-05 04:37:3764

In figure 1 is one of the encoding emitter circuits, the system is equipped with 40 emitter circuit. In figure 2 is the reception display circuit. We d...
Wireless Ir Security System

2016-11-05 03:50:1966

This system contains an IR transmitter, an IR receiver/RF transmitter, and an RF receiver/alert beeper. Two IR LEDs in the transmitter transmit a pulse...
Wireless microphone circuit with NAND gate

2016-11-05 01:02:0271

74LS04 is a TTL integrated circuit, there are six single-end input NAND gates. Three NAND gates can form an oscillator. When the power supply voltage i...
Wireless remote control/touch dimmer circuit RCM1A/RCM1B

2016-11-04 16:11:1667

The wireless remote control/touch dimmer circuit is designed as one kind of incandescent lamp dimmer switch that is composed of the radio remote contro...
Wireless FM Emitting Circuit of 3000 Meters Launching Distan

2016-11-04 14:27:2567

The work voltage and current are 9V and 2～6mA respectively and the element's parameters are shown as the aboved picture.BG1 is 9018,BG2 is C1959(It c...
Wireless remote control electric initiator 1

2016-11-04 12:07:5362

The wireless remote control electric initiator circuit is composed of wireless remote control transmitter and wireless receive initiation circuit. The ...
WIRELESS_FM_MICROPHONE_1

2016-11-04 07:58:1567

Adjustable capacitor C10, and coil L1 form a tank circuit that, in combination with Q1, C2, and R1, oscillates at a frequency on the FM band. The cente...
Circuit of Encryption Wireless TV

2016-11-04 03:45:2671

The circuit of encryption wireless TV with 1W transmit power is as shown. The input signal are audio and video signals, and the launch channel is decid...
Extend the range of your M2M product using wireless repeater

2016-11-03 15:37:3167

This article describes the Extend the range of your M2M product using wireless repeaters (LM317). The principle is very simple, very practical. The cir...
Phase locked loop secondary frequency conversion wireless tr

2016-11-03 15:14:3262

The NT230 launch module uses the special import high stability crystal (it is not the surface acoustic wave resonator). It outputs the stable 230MHz ra...
The wireless emitter microphone circuit--high sensitivity mi

2016-11-03 11:19:5171

The circuit is simple and cheap, whose output power is not higher than 5-8mV, the emitting range is about 300m in citizen area, the signal is received ...
The wireless reception headphone circuit

2016-11-03 10:19:3464

TDA2822-B-B wireless reception headphone is the tool that students receive the teaching audio. The writer has drawn a physical map, which is shown in t...
Transceiver module which is composed of the wireless remote

2016-11-03 06:28:5664

This governor has three gears of wind speed: strong, middle and weak, you can control it by the wireless remote control method or touch the switch, and...
The FM modulation wireless microphone circuit

2016-11-03 00:02:2364

In the figure is the FM modulation wireless microphone circuit, in fact, this is the FM modulation commutator whose frequency is 80～90MHz. The workin...
Phone wireless ringing circuit(transceiver module composed o

2016-11-02 11:32:1862

Transmitter and phone line are parallel. They dont need any other power. Blocking effect of capacitor C1 avoid the transmitter affecting the normal ope...
Wireless remote control switch circuit 7

2016-11-02 07:24:4878

The wireless remote control switch circuit is composed of the wireless remote control transmitter and receiver wireless remote control circuit. The rad...
The infrared wireless headphone circuit

2016-11-02 03:19:1465

As the inductive wireless headphone emitter must be fixed on the wall or the ceiling of the room, it can't be used outside, which is the weakness of in...
The 40-line medical use wireless calling system circuit

2016-11-02 01:58:5463

In figure 1 is one of the encoding emitter circuits, the system is equipped with 40 emitter circuit. In figure 2 is the reception display circuit. We d...
One kind of wireless remote control circuit

2016-11-01 20:57:5070

The remote control transmitter is composed of the DTMF generator and the FM transmitter circuit. Here we use one piece of UM91214B phone specific IC to...
WIRELESS_FM_MICROPHONE

2016-11-01 19:21:1065

Transistor Q1 acts as an amplifier for condenser microphone MIC1. The output of Q1 is applied to the base of transistor Q2 through a 4.7- μF capacitor...
Intelligent wireless security system design circuit

2016-11-01 18:58:4967

The intelligent wireless security system is composed of the sensor, the family intelligent alarm, the property management center alarm-receiving host c...
The infrared monitor wireless alarm circuit

2016-11-01 18:47:1760

In the figure is the infrared monitor wireless alarm circuit. The circuit consists of the infrared monitoring emitter and the infrared reception circui...
The over-temperature wireless alarm circuit

2016-11-01 17:01:0264

With modern electric technologies, it's common to install a set of constant temperature control device for some equipment that works in high temperatur...
WIRELESS_CAMCORDER_MICROPHONE

2016-11-01 13:49:1260

A 741 op amp acts as an audio amplifier and frequency-modulates VHF oscillator Q1 via varactor D2. L1 is 2.5 turns of #18 wire on a 5/16,-inch-diameter...
LM1871 (electronic toys and model cars) wireless remote cont

2016-11-01 09:55:1572

The LM1871 is designed as the wireless remote control launch coding circuit that can be used in the electronic toys and model cars. The internal circui...
The microwave detection wireless alarm (S&P27)

2016-11-01 07:00:0565

In figure (a), when the detecting circuit TWH9250 is detecting the object signal, the terminal O is outputting a low LEV, and the relay K is connected....
multipurpose wireless remote control switch circuit

2016-11-01 01:43:5170

This remote control switch uses wireless code/encode mode, which is not limited by aeolotropy, the beeline control distant is ≤100ｍ.The switch can ...

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