Circuit Wiring Solution: schematic

Showing posts with label schematic. Show all posts

Friday, December 12, 2014

Dual zone alarm schematic

This brilliant circuit shows a two-zone alarm - with automatic exit, entry and siren cut-off timers.It can be triggered by the usual types of normally-closed input devices - such as magnetic reed contacts - foil tape - PIRs etc.

The circuit will work at anything from 9 to 15-volts. All you need do is select a siren, buzzer and relay to suit the voltage you want to use.

Metal Detector Schematic

Simple Metal Detector - Theory and schematic provided by HobbyHour
Balance Metal Detector - Each coil modifies the frequency of the adjacent oscillator through mutual coupling
Simple Metal Detector - Used one 40106 hex Schmitt inverter IC, a capacitor and a search coil
Metal Detector-1 - A fun metal detector to find coins at the beach
One Coil Induction Metal Detector - Offered induction type metal detector is all-purpose
Coil Coupled Operation Metal Detector - made from readily obtainable component

Wednesday, November 19, 2014

3W Stereo Amplifier schematic

3 Watt stereo amplifier circuitusing MAX 7910 IC. The MAX9710 a stereo audio power amplifier IC capable of delivering 3Watts of out put to 4 Ohm loads. MAX9710 can be operated from a single 4.5V to 5.5V power supply , makes it ideal for hand held applications.The IC for 3 Watt stereo amplifier circuit also features thermal overload protection.

Circuit Schematics 3 Watt Stereo Amplifier MAX 7910

3 Watt stereo amplifier circuit

This 3 Watt stereo amplifier circuit is suitable for small power audio devices such as radio sets and portable CD players. 5 V DC power supply is used for powering the 3 Watt stereo amplifier circuit. 6V battery with an IN 4007 diode series to the positive terminal of it can also be used instead of 5 V DC supply. The 3 Watt stereo amplifier circuit will get a supply voltage approximately 5 V after 0.7 V voltage drop across diode.

Thursday, November 13, 2014

PWM Generator Schematic

PWM waveforms are commonly used to control the speed of DC motors. The mark /space ratio of the digital wave-form can be defined either by using an adjustable analogue voltage level (in the case of a NE555 based PWM generator) or digitally using binary values. Digitally derived PWM waveforms are most often produced by the timer/counter modules in microcontrollers but if you do not want to include amicrocontroller in your circuit it’s also quite simple to generate the signals using discrete logic components. An extension of the circuit shown can pro-duce two PWM waveforms from an 8-bit digital input word. Each signal has 15 val-ues. The 8-bit word can be produced for example from an expansion board fitted in a PC or from an 8-bit port of a processor which does not have built-in PWM capability or from a laptop’s printer port.

Discrete PWM Generator Circuit Diagram

The mark/space ratio is only programmable up to 15/16 rather than 16/16; a binary input of 0000 produces a continuous low on both outputs turning both motors off. Similar circuits often employ a dedicated ‘enable’ input to turn the motors off but it is not necessary in this design.

The diagram shows the circuitry required to produce just one waveform. For the full two channel circuit it is necessary to use an additional 74HC193. The clock signal produced by the HCF4060 generator can be used to drive both channels and the free flip flop in the 74HC74 package can be used for the second channel (the corresponding pin numbers are shown in brackets). Alto-gether the entire two channel circuit can be built using just four ICs.

Tuesday, November 11, 2014

FM booster schematic circuit with explanation

A low-cost circuit of an FM booster that can be used to listen programs from distant FM stations clearly. The circuit comprises a common-emitter tuned RF preamplifier wired around VHF/UHF transistor 2SC2570 ( C2570).
This FM booster circuit is constructed using few common components ( not require some special components ) and provide a very good gain .
To calibrate this circuit you need to adjust input/output trimmers (VC1/VC2) for maximum gain.
Input coil L1 consists of four turns of 20SWG enamelled copper wire (slightly space wound) over 5mm diameter former.

It is tapped at the first turn from ground lead side. Coil L2 is similar to L1, but has only three turns.
Both of the trimmers are 22pF value .This FM radio signal booster needs to be powered by a 12 volts DC power supply

more at: electroniq.net/radio-frequency/fm-booster-schematic-circuit.html

Wednesday, October 15, 2014

Simple Luggage Security Alarm Schematic

We usually lock our luggage utilizing a chain-and-lock arrangement when in travelling by a train of bus. But, still we are worried, apprehending that someone may possibly break the chain and steal our luggage. The following schematic is really a very simple and easy build luggage security alarm circuit to alert you when a person tries to break the chain.

Transistor T1 allows supply to the sound generator chip when the base current begins flowing through it. When the wire (thin enameled copper wire of 30 to 40 SWG, applied for winding transformers) loop around the chain is cracked by someone, the base of transistor T1, which was previously linked with positive rail, becomes opened. Because of this, transistor T1 gets forward biased to extend the positive power source towards the alarm circuit.
In idle mode, the power source consumption within the circuit is lowest and as a result, it could possibly be utilized for numerous travel hrs.
To make it possible for generation of various alarm sounds, joints to pin 1 and 6 could be designed as shown in the following table:

Monday, October 13, 2014

Akrapovic Twin Exhaust System Schematic Diagram for 2009 SUZUKI GSX R 1000

Akrapovic Racing and Evolution systems are designed for riders who demand maximum performance from their motorcycle. Both systems are significantly lighter if compared to stock exhaust system and feature exceptional production quality, hi-tech materials and of course increased engine performance combined with pure racing sound output.

The following file contains detail description and explanation on Akrapovic Twin Exhaust System for 2009 SUZUKI GSX-R 1000 and its schematic diagram. The system’s effect on the torque and power curve is huge and strongest in midrange rpm.

Get more info on Akrapovic Twin Exhaust System Schematic Diagram for 2009 SUZUKI GSX-R 1000 here

Friday, September 19, 2014

Gold Detector Schematic

Here the very simple and easy build gold detector schema. The schema capable to sense gold or metal or coins from a distance of about 20cm, depending on the size of the object to detect.

The schema oscillates at about 140kHz and a harmonic of this frequency is detected by an AM radio. You can simply tune the radio receiver until a squeal is detected.

When the search coil is placed near a metal object, the frequency of the schema will change and this will be heard from the speaker of AM radio.

Below image is the construction of the schema, you will see that the radio is placed on the hand stick of the complete detector.

Tuesday, September 9, 2014

High Frequency Waveform Generator schematic

This is a waveform generator based on IC with wide operating frequency, Maxim MAX038. This IC is able to generate frequency between 0.1Hz to 20MHz.

Here the schematic diagram:

The schema can be used to generate square wave, triangle, or sine wave by programming the pin inputs (A0:pin 3, A1:pin 4).
- A0 A1 WAVEFORM
- X 1 Sine wave
- 0 0 Square wave
- 1 0 Triangle wave
The frequency can be controlled using current. If we disconnect the 20k RIN from REF (pin 1) and connect it to a DAC, then we can control the frequency using microcontroller or digital interface. We can even control the chip using a quartz crystal (PLL) by controlling the current using a phase comparator output that compares the sync output (pin 14 of MAX038) and a reference clock from quartz crystal oscillator.

Just try to build this schema... :)

Thursday, September 4, 2014

Regulator Power Supply 1A Circuit Schematic

Small power supply that provides a regulated voltage, adjustable between 1.5 and 35 volts at 1 ampere. This schema is ready to use, you just need to add a suitable transformer. This schema is thermal overload protected because the current limiter and thermal overload protection are included in the IC.

This is the Regulator Power Supply 1A Part List :

IC = LM317
P1 = 4.7K
R1 = 120R
C1 = 100nF - 63V
C2 = 1uF - 35V
C3 = 10uF - 35V
C4 = 2200uF - 35V
D1-D4 = 1N4007

2 3 W Mono power amplifier schematic

This amplifier circuit using ic BA534 as a main amplifier, manufactured by ROHM ic, and packaged in SIP1-8. This amplifier circuit has a maximum output of 2.3 Watts with 4 Ohm impedance. Frequency response is between 30Hz to 18KHz. For the voltage needed at least 9 Volt and 13 Volt maximum. For a list of components can be seen below.

Part List :
R1 = 50K trim
R2 = 33K
R3 = 68R
C1 = 2.2uF
C2 = 220uF
C3 = 100uF
C4 = 47uF
C5 = 470uF
C6 = 100uF
C7 = 47uF
C8 = 100n
U1 = BA534

Wednesday, September 3, 2014

3 Watt power amplifier schematic

This time I will share a circuit of schematis power amplifier with LM380 IC that has similarities with LM384. Enough with just a few components you have to make this power amplifier circuit . All components with relatively low prices and making a fairly easy. For this amplifier output power has 3W with 4 ohm impedance. Indeed , this amplifier has the output is quite low and certainly will not be maximal if it works on the speakers with high power.

Component List :

Resistor
R1______________47K
R2______________2.7R 2W

Capacitor
C1______________10uF
C2______________470uF
C3______________100n
C4______________100n

IC
IC1_____________LM380 , LM384

Monday, September 1, 2014

Subwoofer amplifier schematic diagram

Amplifier circuit is very suitable for use in subwoofer speaker, because its strong. This circuit using ic, ic based on STK. to use it can be used on cars that use speakers or a subwoofer system in his car. 30 V supply voltage that has been rectified. Power output 20W mono.

Part List :
R1 = 100K
R2 = 47R
R3 = 100R
R4 = 1R
C1 = 220uF
C2 = 100uF
C3 = 100uF
C5 = 10uF
C6 = 1uF
C7 = 1uF
C8 = 1000uF
C9 = 0.1uF
IC = STK011 , STK015 , STK016

Wednesday, August 20, 2014

TA7230P TA7236P TA7237AP amplifier schematic

Amplifier circuit here is all based on the ic in the gains. Three IC TA7230P, TA7236P, TA7237AP is intregated circuit (IC) which was applied to the power amplifier. Each IC has a different output, different input voltage, all IC TA7230P, TA7236P, TA7237AP is manufactured by Toshiba.

Basic DC to DC Converter Electronic Schematic Wiring diagram

Those of you who frequently use devices that work on battery or you need a negative trend at the moment you have a single positive, will definitely look for a converter like the one described below. Constructing it, you can convert a positive voltage of a battery of 9 V to negative using well known integrated 555. The same schema can also be used in cases those requiring two symmetrical lines of power, when available a single battery.

The integrated TLC555 is the old bipolar NE555, manufactured with technology but CMOS. Unless you have this type of integrated, you might as well use an 7555. In this construction, the TLC555 is syndesmologimeno arranged in a ground unstable.The oscillation frequency determined by the A2, A3, C 1 and approaching 20 kHz.

DC to DC Converter Electronic Schematic Diagram

The rectangular waveform produced by the oscillator is therefore time to time (Duty Cycle) close to 50%. The waveform is led to a rectifier Doubler formed by C3, O1, O2 and C4. In place of O1 and O2 should be placed diodes Schottky type VAT85 due to low voltage correct direction which is equal to 0,4 V (silicon diodes such as type 1 N4148, show a tendency equal to 0,7 V). The capacitor C4 cares for smoothing the voltage bristled, while the C5 relieve the signal from noise high frequencies. With the help of A1, C6 and C7 achieved the disconnection of supply voltage timer.

The consumption of the inverter to power depends largely on the load to be connected to the output of -9 V. As seen from the values ??indicated in the table, the output voltage is held within tolerable levels, as the load current is kept less than 1O mA. To make it easy to integrate the inverter into any electronic device, I suggest you build a small PCB board.

Sunday, August 17, 2014

Schematic Audio Power Amplifier with IC AN7120

This schematic use the IC AN7120 for main system power amplifier with support some other components. In this circuit have a good sound quality. Because output noise is very very minimal , not even be heard in the distance of 5 Cm from the sound. Description from this circuit , voltage minimum required 6 volt and maximum voltage 20 volt , you can choose voltage between it. Maximum output Power 15 Watt with impedance 4 Ohm.

See Schematic Power Amplifier below :

(Figure 1.0) Schematic Circuit Power Amplifier AN7120