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  • Single Input to Differential Input Adapter for Digital Voltm

    2015-01-11 06:56:3967

    I some cases, a differential input is needed for voltage measurement. Using the only one operational amplifier, you can build an adapter to provide a f...

  • Audio Filter Analyzer

    2015-01-11 06:21:1980

    When this circuit is connected to a filter and an oscilloscope, the scope displays the filter`s frequency response. A frequency that sweeps from low to...

  • Low pass filter for subwoofer

    2015-01-11 06:18:46127

    Description. Many low pass filter circuits for subwoofer are given here and this is just another one. The circuit given here is based on the opamp TL06...

  • Bandpass and notch filter

    2015-01-11 05:49:1282

    The Quad op amp MC4301 is used to configure a filter that will notch out a given frequency and produce that notched-out frequency at the BP terminal, u...

  • Digital Levels Scope Displays 2 Logic Signals On 1 Scope

    2015-01-11 05:47:2765

    Using this simple resistor circuit, you can trick your oscilloscope into displayin g two logic signals on one channel. If you select R2 to be twice R, ...

  • IR Remote Control Modulation Detector

    2015-01-11 05:16:0866

    Description A circuit to extract and measure the modulated carrier of an Infra Red remote control. Note that the circuit doesnot physically separate co...

  • Subsonic Filter circuit

    2015-01-11 04:49:50104

    A subsonic filter is mostly used in low frequency technology. Most often, the very low frequencies create distorsions in music recording or reproductio...

  • 1.8V, 140uA, 100kHz, Lowpass Filter (Single-Ended Input and

    2015-01-11 04:44:0174

    View Full Size Image View Original Datasheet The LTC6256 circuit shown here is a 2nd order, 100kHz, Butterworth lowpass filter. The filter’s differen...

  • Shunt capacitor filter

    2015-01-11 04:36:49100

    Shunt Capacitor Filter and types of it: This is the most simple form of the filter circuit and in this arrangement a high value capacitor C is placed d...

  • Digital slave flash trigger

    2015-01-11 04:18:2675

    This unique circuit has been tried with all three of my cameras and two others and works perfectly. It ignores all pre-flashes and only triggers on the...

  • FET Buffered Analog Voltmeter

    2015-01-11 04:07:3092

    This is a voltmeter circuit that use FET as the buffer to improve the input impedance. This circuit uses A2N3819 FET which provides a solid-state VOM. ...

  • Connect a LTC2400 High Precision 24 Bit Analog to Digital Co

    2015-01-11 03:50:04144

    If the resolution of the Arduino is not enough for your application you have to try it with a better ADC. The LTC2400 gives you a resolution of up to 2...

  • Digital-data-line-receiver

    2015-01-11 03:05:4367

    When digital data is transmitted over long lines (longer than 1 meter), proper transfer is often disturbed by the parasitic effects of ground level shi...

  • Tunable notch filter to suppress hum

    2015-01-11 02:44:0186

    This narrow-stop-band filter can be tuned by the pot to place the notch at any frequency from 45 to 90 Hz. It attenuates power-line hum or other unwant...

  • Pseudodifferential Multichannel Bridge Digitizer and Digital

    2015-01-11 02:31:2165

    View Full Size Image View Original Datasheet This circuit enables pseudodifferential measurements of several bridge transducers and absolute temperatur...

  • Digitally-programmable-attenuator

    2015-01-11 01:53:4665

    The first stage is a simple buffer used to isolate the signal source from the attenuator stages to follow. Each of the subsequent stages is preceded by...

  • Digital Calender Circuit

    2015-01-11 00:32:39112

    Here is calendar digital circuit. this circuit using Microcontroller is an advanced digital calendar, which displays the Date, Day, Month over theLED d...

  • Digitally Programmable Oscillator

    2015-01-11 00:09:4869

    The schematic diagram below shows a digitally programmable oscillator circuit. This programmable oscillator circuit is based on V/F (voltage to frequen...

  • DS1669 IC For Digital Volume Control

    2015-01-11 00:03:58335

    Description: This is digital volume control circuit. This circuit uses DS1669 as the main volume control. You can use stereo push button switch for to ...

  • PLL filter blocks undesired frequencies

    2015-01-10 23:47:5780

    Stephen Kamichik, Ile Bizard, PQ, Canada EDN You often need to block signals of specific frequencies; of these frequencies, 50- or 60-Hz line frequency...

  • Digital code lock

    2015-01-10 23:28:1374

    Description. This is a simple but effective code lock circuit that has an automatic reset facility. The circuit is made around the dual flip-flop IC CD...

  • Scratch Filter

    2015-01-10 23:20:1688

    Designed to produce 12-dB/octave roll-off above the 10-kHz cutoff frequency, this LP active filter will help reduce needle s cratch on records. It uses...

  • 60Hz Notch Filter by LM741

    2015-01-10 23:18:25115

    60Hz Notch Filter by LM741 Related Links More circuit by IC LM741 More Circuit Bandpass Filter More Circuit Filter High Pass Active Filter by LM741 1KH...

  • How to build Digital Clock with MM5314N

    2015-01-10 22:18:1070

    Description The digital clock of circuit, has as base one IC, the MM5314N, in which are contained all the circuits that need. The IC1 collaborates with...

  • Filter Circuit for Human Speech

    2015-01-10 21:58:1777

    Figure 1 The circuit has been designed to develop a speech filter that will improve the signal processing circuit for optimizing speech recognition. TL...

  • Audio magic by SCR 2N1599

    2015-01-10 21:34:2572

    This circuit can be a trickster. Through a permanent magnetic switch controls the wreath only. I can make a noise out. Working principle of the circuit...

  • DS1669 digital potentiometer circuit

    2015-01-10 21:20:2676

    Audio Circuits This DS1669 digital potentiometer circuit can be used for replacing your manual volume control in audio circuits. DS1669 are digital rhe...

  • Digital Vom Phase Meter

    2015-01-10 20:41:57172

    The phase-angle meter will work with either analog or digital inputs. A DVM is used as a readout device. The output is 1 mV per degree (360 mV or degre...

  • Audio noise filter circuit(2N2907)

    2015-01-10 20:19:31173

    This article describes the Audio noise filter circuit (2N2907). The principle is very simple, very practical. The circuit components can help you under...

  • Millivolt Source with Digital Potentiometer

    2015-01-10 19:38:32169

    Here is a Millivolt Source i built for Calibration in the early days. It uses only CMOS Digital and Mixed Chips from Intersil and CD40xx Series. Later ...

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