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  • Basic Transistor Switches

    2015-03-03 10:44:42104

    MOSFET and Bipolar transistors are often used for high speed switching applications. Below are four very simple examples of this. ON-OFF toggle switche...

  • Low frequency Butterworth and optimal Wiener ECG filters

    2015-01-18 23:33:45257

    Regular ad hoc filters dont guarantee optimal signal filtering as there is no any criteria that evaluates filter characteristics. Usually filter parame...

  • Audio notch filter 2

    2015-01-18 23:27:5497

    With the circuit shown here the response at one octave off tune is within 10% of the far out response: notch sharpness may be increased or reduced by r...

  • Adapter for Experimenter, Dual for Digital and Analog Suppl

    2015-01-18 23:11:0672

    Adapter for Experimenter, Dual for Digital and Analog Supply 5V and 9V This circuit this from Electronic Project Magazine, Vol-4, published by: EFY Ent...

  • MMA7455L Three Axis Digital Output Accelerometer

    2015-01-18 22:53:58100

    This module integrates the sensor MMA7455L (produced by Freescale), able to detect the movement on three axes, and then in every direction. The chip of...

  • On-off control SCR with logic gate IC

    2015-01-18 22:00:58107

    This is an SCR control circuit with digital logic. The behavior of the circuit. The input A to control current for SCR turn ON.The input B will stop th...

  • DIGITAL MISCELLANEOUS TEMPERATURE GAUGE with IN4148

    2015-01-18 21:59:16116

    A diode (IN4148) is used as a temperature sensor. IC2 is an A/D converter with BCD output. A reference voltage set by R7 is applied to the positive inp...

  • Variable bandwidth bandpass active filter

    2015-01-18 21:26:31103

    This circuit has adjustable bandwidth with values for a center frequency of about 800 Hz The 10-K pot adjusts bandwidth from approximately ?±350 Hz to...

  • Digital-ir-transmitter

    2015-01-18 19:11:3175

    Gates U1a and U1b are configured as a low-frequency oscillator. The output waveform at pin 11 is nonsymmetrical with the positive portion of the signal...

  • Multiple feedback bandpass filter Description

    2015-01-18 18:16:2879

    Next, a plurality of band pass filters introduce feedback. Please take a few seconds to browse to the following schematic. Source impedance must be low...

  • Digital Count-Up Timer Gadget (2N4062)

    2015-01-18 17:58:0681

    This article describes the Digital Count-Up Timer Gadget (2N4062). The content is very simple, very helpful. Components in this article can help you un...

  • How to build Digital Remote Thermometer

    2015-01-18 17:34:10114

    Description This circuit is intended for precision centigrade temperature measurement, with a transmitter section converting to frequency the sensor's ...

  • How to build Pulse Width Modulation DC Motor Control

    2015-01-18 17:26:5989

    Description Often, people attempt to control DC motors with a variable resistor or variable resistor connected to a transistor. While the latter approa...

  • Buffer circuits for digital cmos (CD4050)

    2015-01-18 16:04:11310

    circuit output buffer by IC 4050 If you want the circuit Output buffer for the circuit digital. I begs for to advise IC 4050 (Hex buffers with high-to-...

  • Programmable Photovoltaic Transimpedance Circuit (AD822)

    2015-01-18 15:06:04180

    This article describes the Programmable Photovoltaic Transimpedance Circuit (AD822). The content is very simple, very helpful. Components in this artic...

  • Impedances of Same Magnitude

    2015-01-18 15:03:3965

    Java-Runtime is required for Circuit Simulation. Download Java for Windows Download Java for Linux Download Java for Other OS Start Simulation Circuit ...

  • Dual Polarity Analog Output Op-Amps

    2015-01-18 14:38:5172

    When you have to buffer and invert the polarity of mV input levels. This is the circuit you can use, as OP07 has uV offset. R9 and R10 can be 100K 1% M...

  • Audio Ditherizing Circuit For Digital Audio Use

    2015-01-18 13:31:4476

    By adding a small amount of noise to a signal to be digitized (about 0.7 bit): where: n = # of bits. For example, 8 bits and 2 V p-p would be 0.0055 V....

  • Square Root Mode for AD532 Analog Processor (AD532)

    2015-01-18 13:11:1272

    The following schematic diagram shows us about the connections for square root mode for AD532 analog processor chip.? Similar to the division mode, the...

  • Digital Radar Speedometer

    2015-01-18 13:10:4990

    Circuit diagram This circuit is a Digital Radar Speedometer. It allows us to evaluate the speed of any object moving, especially cars and other vehicle...

  • Digital dial CIRCUIT (74HC192)

    2015-01-18 12:23:1299

    This article describes the Digital dial CIRCUIT (74HC192). The content is very simple, very helpful. Components in this article can help you understand...

  • Speech-Pass Filter

    2015-01-18 12:05:0684

    A speech-pass filter circuitry is shown in the the schematic diagram below. This speech circuit is useful in an application when the frequency spectrum...

  • DC impedance auto phone patch line interface circuit

    2015-01-18 11:02:24305

    A telephone line interface circuit for connecting telephone equipment provided with internal speech lines having predeterminedDC impedance to external ...

  • High Q notch filter (LM102)

    2015-01-18 10:41:0881

    This article describes the High Q notch filter (LM102). The content is very simple, very helpful. Components in this article can help you understand be...

  • Full-wave scr control

    2015-01-18 10:24:0778

    This circuit enables a single SCR to provide fullwave control of resistive loads. Resistor R3 should be chosen so that when potentiometer R2 is at its ...

  • Arduino intervalometer for Digital Cameras

    2015-01-18 09:39:14130

    Arduino intervalometer for Digital Cameras This intervalometer / remote timer has been built and based on code kindly provided by the roaming drone and...

  • Single 2.7V Supply 4MHz 4th Order Lowpass Butterworth Filter

    2015-01-18 09:38:1563

    View Full Size Image View Original Datasheet Benefiting from low voltage operation and rail-to-rail output, a low power filter that is suitable for ant...

  • How to build Digital Clock with Timer and Solar Panel Regula

    2015-01-18 09:21:55168

    Description This is a combination digital clock timer and solar panel charge controller used to maintain a deep cycle battery from a solar panel. The t...

  • Mp pulse width modulation control circuit

    2015-01-18 09:01:4576

    The TL494C is a pulse-width-modulation control circuit. It incorporates all the functions required in the construction of a pulse-width-modulation (PWM...

  • Weighting Filter for Audio Measurements CIRCUIT (LM3900N)

    2015-01-18 08:44:47126

    This article describes the Weighting Filter for Audio Measurements CIRCUIT (LM3900N). The content is very simple, very helpful. Components in this arti...

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