A very efficient 6V to 15V DC to DC converter using LM2585 is shown here. LM2585 is a monolithic integrated voltage converter IC that can be used in various applications like flyback converters, boost converters, forward converters, multiple output converters etc. The circuit requires minimum number of external components and the IC can source up to 3A output current. ...
Friday, October 31, 2014
Triac Optimization Circuits
Advanced power control systems make use of electronic plans like Thyristors pro power switching, part control, grinder and so forth. These diplomacy and realize applications participating in inverter design, ability control in lamps, quickness control of motors and so on.Triacs are the largely general semiconductor procedure used in power control and switching applications....
20 000 Watt Audio Amplifier Scheme collections
Collection of VersatileAudioAmplifier Number 2Schema 20kW audio amplifierScheme 2000 Watt Audio AmplifierScheme 200 Watt Audio AmplifierScheme 20 Watt Audio Amplifierlayout PCBScheme 2 Watt Audio Amplif...
275W RMS Power Amplifier
The 275W RMS Power Amplifier design includes not simply the final stage of the source (rectifier, filter) and protection aligned with DC voltage output amplifier and spokeswoman links delayed. like already mentioned, the amplifier is designed as a single-module. This instrument so as to on individual universal board rectifier, filter capacitors, protection And beyond doubt...
Diagram IR Remote Control Circuit using Op amp 741
IR circuit is called Infrared Circuit. Remote controlsare very much popular now-a-days. It is specially called cordless circuit. This circuit is very simple and low cost cordless remote control circuit which is based on infrared rays.Figure 1 shows thetransmitter circuit. The transmitter produces infrared rays and that can be easily transmitted up to 4 meters...
Thursday, October 30, 2014
AM Receiver Circuit Diagram
This is a compact three transistor, regenerative receiver with fixed feedback. It is similar in principle to the ZN414 radio IC which is now no longer available. The design is simple and sensitivity and selectivity of the receiver are good.Circuit diagramNotes:All general purpose transistors should work in this circuit, I used three BC109C transistors in my prototype.The tuned...
CD Rom Drive as Digital Audio CD Player
A CD-ROM drive can be used as a stand-alone unit for playing digital audio CDs without interfacing with a computer. The stereo output of CD player available at the audio jack can be amplified using audio input facility which is normally available on a tape-deck/tape-recorder or a stereo amplifier. Audio socket on front/rear of the CD-ROM drive is capable of driving headphones...
Soft Start For Switching Power Supply
Switching power supply whose output voltage is appreciably lower than its input voltage has an interesting property: the current drawn by it is smaller than its output current. However, the input power (UI) is, of course, greater than the output power. There is another aspect that needs to be watched: when the input voltage at switch-on is too low, the regulator will tend...
Automatic light activated switch circuit
The circuit can be used for switching OFF a particular lamp or group of lamps in response to the varying ambient light levels. The unit once built can be used for switching OFF a lamp when dawn breaks and switching it ON when dusk sets in. The power supply is a standard transformer, bridge, capacitor network, which supplies a clean DC to the circuit for executing the...
Digital Bike Tachometer Circuit
This digital DIY tachometer for bikes uses two reed switches to get the speed information of the bicycle. The reed switches are installed near the rim of the wheel where permanent magnets pass by. The permanent magnets are attached to the wheelspokes and activate the reed switches everytime they pass by it. The speed is digitally displayed.Electronic bicycle DIY tachometer...
10V Switching Regulator Using LM5007
10V Switching Regulator Using LM5007 Circuit DiagramThe circuit diagram shown here is of a 10V switching regulator based on the LM5007 from National Semiconductors. The LM5007 is an integrated step down switching regulator which has all necessary systems required for making a cost effective and reliable switching regulator circuit. The IC is available in MSOP-8, LLp-8 packages...
Wednesday, October 29, 2014
Long range FM transmitter
The power output of most of these circuits are very low because no power amplifier stages were incorporated.The transmitter circuit described here has an extra RF power amplifier stage, after the oscillator stage, to raise the power output to 200-250 milliwatts. With a good matching 50-ohm ground plane antenna or multi-element Yagi antenna, this transmitter can provide reasonably...
Extend Timer Range For The 555
Anyone who has designed circuits using the 555 timer chip will, at some time have wished that it could be programmed for longer timing periods. Timing periods greater than a few minutes are difficult to achieve because component leakage currents in large timing capacitors become significant. There is however no reason to opt for a purely digital solution just yet. The circuit...
Clap Sensitive On Off Relay Diagram Circuit
This circuit was intended to activate a relay by means of a hand clap. Further claps will turn-off the relay. An interesting and unusual feature of this project is the 3V battery operation. The circuits sensitivity was deliberately reduced, in order to avoid unpredictable operation. Therefore, a loud hand clap will be required to allow unfailing on-off switching. Q1 acts as...
Power Amplifier MOSFET 360 W
I propose here a more powerful version of the 200 Wrms 8 ohms AB class power amplifier project. It shares the same concept that the less poweful model : assembled using common compoments (not very expensive), based on traditional diagrams : a symmetrical differential input stage, a cascode stage driver and a MOSFET output stage. The printed circuit board is very compact ,...
On And Off Button Diagram Circuit
In this simple circuit we give the chip a little more attention than usual. It is astonishing what can be built with a 555. We are always infatuated with simple circuits using this IC, such as the one shown here. The 555 is used here so that a single push-button can operate a relay. If you press the button once, the relay is energized. When you press it again the relay turns...
Using LV47011P car audio amplifier Diagram Circuit
Using the LV47011P audio power amplifier IC designed for 4-channel BTL power amplifier that developed for car audio system we can implement a very simple car audio amplifier electronic project that can produce an output power between 22 and 50 watts on a 4 ohms load .This LV47011P car audio amplifier electronic project will provide a maximum 22 watts output power per channel...
Tuesday, October 28, 2014
TDA7383 35W Car Quad Audio Amplifier Circuit
The following a 4 x 35 watts channels/quad audio power amplifier circuit based IC TDA7383. The amplifier circuit is designed specifically suitable for car audio system applications. With a fairly large output power per channel, low distortion and low output noise features. Heatsink should be installed on the power IC to avoid excessive heat. There are very simple and easy...
Network Voltage Indicator
Using this schematic can be made a network voltage indicator electronic circuit. If the input voltage is present across the network, the optocoupler transistor is open, T1 is blocked and controlled rectifier, Th1, is in a state of conduction. Since both terminals of the piezoelectric buzzer is at the same potential, buzzer is off. If voltage disappears, the transistor T1 enters...
240V to 110V AC Inverter
Using this circuit diagram, can be designed a very simple AC voltage converter, which converts the 240V AC power to a voltage of 110V.Circuit can be successfully used to power electrical devices that require a supply voltage of 110V. If such a device is a purely resistive load, as electric radiator, letcon the circuit described below will be useful. Basically, this is...
Motorcycle LED Lights Circuit
Motorcycle LED Lights series is so simple that it only uses a few components, but the results are very satisfactory. Power consumption is small enough 6 Volt course is suitable for your motorcycle.The 555 circuit lower than is a flashing bicycle light powered with four C,D or else AA cells (6 volts). Two sets of 20 LEDs yearn for alternately glimmer by the side of approximately...
NCP2824 bassed Class D amplifier electronic project Diagram Circuit
Using the NCP2824 filterless Class D amplifier can be designed a very simple low power audio amplifier electronic project, capable of delivering up to 2.4 W to a 4 ohms load with a 5 V supply voltage.With the same battery voltage, it can deliver 1.2 W to an 8 ohms load with less than 1% THD+N. The non−clipping function automatically adjusts the output voltage in order to control...
Mosfet Power Amplifier 100 Watt
At this time a unsophisticated MOSFET amplifier or else power Amp which Output power is plus/minus 100 Watt/RMS with 8 Ohms otherwise ohter plus/minus 160 Watts /RMS with 4 ohms.Mosfet Amplifier 100 Watt RMSRegarding this circuit simplicity, The distortion is plus/minus 0.1 %. In support of mob-width -3 db(decibel) is increase for 4 Hz to 96 Khz, it is narrow by...
Monday, October 27, 2014
Troubleshooting STR IC Regulator Power Supply
A. Unable to start.Can be caused by:No start-up voltage supply Vcc or a voltage less than 16VElectrolityc Capacitors supply voltage Vcc filter dry. 2. Led indicator blinkingIf the supply voltage Vcc examined rocking. This is because the regulator of life and death because OVLO work., Die-protectionist regulators and auto start life over and over. If it is turned...
TA8256BH bassed 6 watts 3 channel audio amplifier Diagram Circuit
Using the TA8256BH audio amplifier IC can be designed a very simple 3 channel audio power amplifier for audio applications that require a small power .This IC provides an output power of 6 watts per channel (at VCC = 20 V, f = 1 kHz, THD = 10%, RL = 8 Ω). TA8256BH audio amplifier project is suitable for power amplifier of TV and home Stereo.Some important build in functions...
BC550 High Temperature ALARM
The circuit is small regulatorof temperature, us warns for the increase of temperature. The control of temperature becomes from the thermistor TH1, that is negative factor. His resistance is altered between in the 10K in temperature 25° C and roughly in the 1K in their 94° C. The trimmer TR1 regulates the precise temperature in which the Q1-2, connected as darlington, conduct,...
1W BTL Audio Amplifier Diagram Circuit
The TDA8581(T) from Philips Semiconductors is a 1-watt Bridge Tied Load (BTL) audio power amplifier capable of delivering 1 watt output power into an 8-Wload at THD (total harmonic distortion) of 10% and using a 5V power supply. The schematic shown here combines the functional diagram of the TDA8551 with its typical application circuit. The gain of the amplifier can be set...
DC Voltage Doubler
The The Circuit of DC Voltage Doubler was designed on arrived type Power Supply. Please study carefully and comprehend by the side of schematic design photos of The Circuit of DC Voltage Doubler to pick up factor in sequence.DC Voltage Doubler SchematicThis is a economical DC Voltage Doubler Circuit diagram, which requires a hardly any components and strength of character...
Sunday, October 26, 2014
Hi Fi Audio Amplifier Circuit LM1875
This circuit is the audio amplifier circuit has a very common single.This is a austere circuit. insignificant pieces of equipment. And Watt are climax.The circuit uses IC integer LM1875, which is under the protection circuit IC output or else Too condensed circuit. And a sizeable distortion in the same way as low as 0.015% on a frequency of 1kHz.Hi-Fi Audio Amplifier Circuit...
Car Parking Sensor circuit Using Infra Red LED
This circuit can be used for an assist in parking the car near the garage wall backing up Pls. LED D7 illuminates Pls bumper-wall distance is about 20 cm., D7 + D6 illuminate at about 10 cm. and D7 + D6 + D5 at about 6 cm. In this manner you are alerted Pls approaching too close to the wall.Car Parking Sensor circuit All distances mentioned before can vary, depending on infra-red...
circuit for Digital Stop Watch
Make a Digital Stop Watch Description A digital stop watch built around timer IC LM555 and 4-digit counter IC MM74C926 with multiplexed 7-segment LED display.MM74C926 consists of a 4-digit counter, an internal output latch, npn output sourcing drivers for common cathode,7-segment display and an internal multiplexing circuitry with four multiplexing outputs.The counter advances...
74LS192 Computer controller 4 DC motors
This circuit has proven useful when interfacing my computer to home made robotics. It is easy to build and use and it can control two DC motors of any current or voltage rating, depending on the rating of the relays. The circuit also provides two shaft encoders for positional feedback to the computer....
Saturday, October 25, 2014
Speaker to microphone converter Diagram Circuit
Description.This circuit is a simple approach for converting a loud speaker into a microphone. When the sound waves fall on the diaphragm of a speaker, there will be fluctuations in the coil and there will be a small proportional induced voltage. Usually this induced voltage is very low in magnitude and useless. Here in the circuit the low voltage is amplified using transistors...
