Showing posts with label Using. Show all posts
Showing posts with label Using. Show all posts
USB Battery Charger controller circuit using LM3622
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From USB Battery Charger controller circuit using LM3622
11 90 hz Subwoofer Filter Using TL072 Op Amp
11-90 hz Subwoofer Filter Using TL072 Op-AmpThe subwoofer clarify ambit allows the accession of subwoofers to an absolute full-range system, alms adjustable low-pass clarification with alternative R6 and R8 addition and mono-summing.
The Subwoofer clarify ambit to abolish for abstracted pre amplifier to drive the low abundance complete a lot. In tone, alarm tone, accustomed Can not be done … is a accomplished abysmal low bass sounds like a bass drum, or at a cine circuitous in a low articulation if we can be heard with But to add cabinets and amps. The subwoofer ambit is canyon low abundance with in 11-90 Hz. Switching ability accumulation 12V cut out if they charge to use +-15V. I had change the Capacitor to cut out vocals per the red amphitheater mark.
LED Flasher Circuit Using 555 Timer IC
This is a simple LED flasher project that uses a common 555 timer IC for its operation. It is configured as an astable mode which means that its output is a square wave oscillator. Two LEDs are connected to its output in such a way that when one LED is ON, the other LED will turn OFF.
It uses only 10 simple parts that are easily available at any electronic shops. Capacitor C2 charges exponentially through resistors R1, R2 and the resistance of the trimpot. When C2 has charged to about 2/3 VCC it stops charging and it discharges to about 1/3 VCC through R2 and the trimpot resistance via pin 7. This is the standard operation of a 555 timer. When a Vcc of 5 V to 15 V DC is applied to the circuit, the LED will start to flash.
The frequency of the flashing can be changed by varying the resistance of the potentiometer or trimpot.Parts List The parts list of the simple LED project is as shown below.
6 WATT Hi Fi AUDIO AMPLIFIER USING TDA2613
A 6 watt audio amplifier circuit using TDA2613 is shown here. TDA2613 is an integrated Hi-Fi audio amplifierIC from Philips Semiconductors. The IC is switch ON / switch OFF click proof, short circuit proof, thermally protected and is available in 9 pin single in line plastic package.
In the given circuit, TDA2613 is wired to operate from a single supply. Capacitor C4 is the input DC decoupler while capacitors C5, C6 are power supply filters. Input audio is fed to the non inverting input through capacitor C4. Inverting input and Vp/2 pins of the IC are tied together and connected to ground through capacitor C3. Capacitor C2 couples the speaker to the ICs output and the network comprising of capacitor C1 and resistor R1 improves the high frequency stability.
Circuit Diagram of 6 Watt Amplifier using TDA2613
Notes
- Assemble the circuit on good quality PCB.
- Supply voltage (Vs) can be anything between 15 to 24V DC.
- Heat sink is necessary for TDA2613.
- Do not give more than 24V to TDA2613.
Latest In Circuit Transistor Checker Using 555 timer
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This simple circuit has helped me out on many occasions. It is able to check transistors, in the circuit, down to 40 ohms across the collector-base or base-emitter junctions. It can also check the output power transistors on amplifier circuits.
Circuit operation is as follows. The 555 timer ( IC1 ) is set up as a 12hz multi vibrator. The output on pin 3 drives the 4027 flip-flop ( IC2). This flip-flop divides the input frequency by two and delivers complementary voltage outputs to pin 15 and 14. The outputs are connected to LED1 and LED2 through the current limiting resistor R3. The LED’s are arranged so that when the polarity across the circuit is one way only one LED will light and when the polarity reverses the other LED will light, therefore when no transistor is connected to the tester the LED’s will alternately flash. The IC2 outputs are also connected to resistors R4 and R5 with the junction of these two resistors connected to the base of the transistor being tested. With a good transistor connected to the tester, the transistor will turn on and produce a short across the LED pair. If a good NPN transistor is connected then LED1 will flash by itself and if a good PNP transistor is connected then LED2 will flash by itself. If the transistor is open both LED’s will flash and if the transistor is shorted then neither LED will flash.
From :: http://home.maine.rr.com/randylinscott/nov97.htm
Mini Generator High Voltage 1 5 Volts using stack Shock Machine
Ever wondered build a high voltage generator powered only by a battery of 1.5 Volts? Well, this circuit described herein, taken from the website Indestructible is able to do this. It generates a voltage of about 450 volts, enough to give a very nasty shock. Before thinking of doing this project, read our disclaimer.
The most critical component in this circuit is the transformer, it is used in flashes of cameras. This transformer is a ferrite with five pins. The ferrite transformer must have five-pin, if the processor has 4 or 6 pins, it will not work for this project. But you make an adjustment if you have experience in electronics.
High Voltage Generator Circuit Diagram
List of components
Resistor 220 Ohm 1/8 Watt
Resistor 100 Ohm 1/8 Watt
Capacitor 22NF x 400 or 500 Volts (film)
Ferrite transformer with five-pin
Diode Rectifier 1000 Volts - Almost all types will work
Common NPN transistor - Almost all types will work
red LED
Drinking Water Alarm Using by IC LM555
The State Jal Boards supply water for limited duration in a day. Time of water supply is decided by the management and the public does not know the same. In such a situation, this water alarm circuit will save the people from long wait as it will inform them as soon as the water supply starts.
Drinking Water Alarm Using by IC LM555
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Drinking Water Alarm Using by IC LM555
At the heart of this circuit is a small water sensor. For fabricating this water sensor, you need two foils—an aluminium foil and a plastic foil. You can assemble the sensor by rolling aluminium and plastic foils in the shape of a concentric cylinder. Connect one end of the insulated flexible wire on the aluminium foil and the other end to resistor R2. Now mount this sensor inside the water tap such that water can flow through it uninterrupted. To complete the circuit, connect another wire from the junction of pins 2 and 6 of IC1 to the water pipeline or the water tap itself. The working of the circuit is simple.
Timer 555 is wired as an astable multivibrator. The multivibrator will work only when water flows through the water tap and completes the circuit connection. It oscillates at about 1 kHz. The output of the timer at pin 3 is connected to loudspeaker LS1 via capacitor C3. As soon as water starts flowing through the tap, the speaker starts sounding, which indicates resumption of water supply. It remains ‘on’ until you switch off the circuit with switch S1 or remove the sensor from the tap. The circuit works off a 9V battery supply. Assemble the circuit on any general-purpose PCB and house in a suitable cabinet. The water sensor is inserted into the water tap. Connect the lead coming out from the junction of 555 pins 2 and 6 to the body of the water tap. Use on/off switch S1 to power the circuit with the 9V PP3 battery.
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