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  • 1HZ Standard digital clock

    2015-01-10 18:55:14128

    This is a standard digital clock circuit,frequency size 1 Hz or 2 Hz. It can be used in the normal clock circuit. It consists ofIC-4060andIC-4013, the ...

  • Digital Panel Meter Using ATMEGA8

    2015-01-10 17:00:29265

    The circuit came out to be very simple and compact. The ATMEGA8 is the lowest pin count AVR controller that I could find that has an onboard 10 bit A-t...

  • Analog-peak-detector-with-digital-hold

    2015-01-10 16:59:1199

    Analog peak detection is accomplished hy repeatedly measuring the input signal with an a/d converter and comparing the current reading with the previou...

  • DS1669 Digital Potentiometer

    2015-01-10 16:36:4976

    DS1669 Digital Potentiometer Control audio volume, LCD contrast, frequency, etc. by using two buttons instead of a common potentiometer. This circuit e...

  • Digital Clock 60HZ-based Schematic

    2015-01-10 16:14:38200

    The digital clock standard the 60HZ time base circuit as shown below, the CD4060 is a 14-bit binary serial counter / oscillation frequency divider. Osc...

  • How to build Digital Roulette with Display

    2015-01-10 14:40:1871

    Description This circuit is a small digital ?roulette''. It is constituted by oscillator IC1, the counter IC2, the transistors Q1-7 that drive the disp...

  • 20 Output Sequencing Circuit by IC digital

    2015-01-10 14:07:5398

    I to see this circuit in web http://home.cogeco.ca/~rpaisley4/Traffic145.html good idea circuit. Basic Circuit Operation The circuit is stepped through...

  • Digital Tachometer Counter

    2015-01-10 13:49:07681

    This circuit produces a readout for the digital tachometer circuit. IC9 is a 3-digit LED display driver, counter , and latch. IC8 drives the common-cat...

  • Tone probe for testing digital ics

    2015-01-10 13:40:3064

    The probe's input circuit senses the condition of the signal and produces either a low-pitched tone for low-level signals (less than 0.8 V) or a high-p...

  • Build a digital PLL with three ICs

    2015-01-10 13:36:0674

    Dave Allen, Dash Inc, Kansas City, KS A counters self-presetting feedback loop hunts for the center count The simple circuit exhibits the basic charact...

  • Digital Ping Pong Circuit

    2015-01-10 13:28:0391

    Figure 1 The objective of the circuit is to create a ping pong game from a digital circuit that would provide the significance of up and down ball move...

  • Digital Delay Unit for Surround Sound

    2015-01-10 12:42:1693

    Digital Delay Unit for Surround Sound[more] : Digital volume control has log taper: 04/11/2002 EDN Design Ideas / Digital potentiometers provide a comp...

  • Understanding Timing diagrams of digital systems

    2015-01-10 12:11:27136

    Timing diagrams are the main key in understanding digital systems. Timing diagrams explain digital circuitry functioning during time flow. Timing diagr...

  • Digital Quality Microphone Pre Ampl (2SA2072)

    2015-01-10 11:23:4568

    This article describes the Digital Quality Microphone Pre Ampl (2SA2072). The content is very simple, very helpful. Components in this article can help...

  • Control digital al volumului

    2015-01-10 10:42:1169

    Adaugat in Audio | fara comentarii Mai multe scheme cu: 4011 4067 4516 control volum Inima acestui control de volum digital (numeric) este circuitul in...

  • Five-pole active filter

    2015-01-10 10:36:2289

    The above realization of a type 03 receive filter is accomplished using eight OP-OS`s. As can be seen from the response curve, the >30dB attenuation in...

  • From analog to digital signal filtering

    2015-01-10 10:17:0579

    Signal filter is electrical equipment that attenuates the unwantedsignalcharacteristic wave. Filters can be analog or digital. An analog filter process...

  • Programmable Photovoltaic Transimpedance Circuit

    2015-01-10 10:16:3769

    Photovoltaic transducers has been widely used in medical, consumer, scientific instrumentation, and industrial applications. Photovoltaic sensors is a ...

  • 20Hz High-Pass Rumble Filter, Subsonic Blocker (LM741)

    2015-01-10 09:27:32106

    This is a schematic diagram of 20-Hz high-pass rumble filter circuit.? Rumble noise could come from many sources, such as wind blow around an outdoor m...

  • Digital-frequency-window

    2015-01-10 09:25:3266

    This circuit detects frequency variation above or below preset limits. IC1 is a binary counter docked at FcLK?· The outputs are comparea with switch p...

  • Active Low-Pass Rc Filter Circuit

    2015-01-10 09:09:4579

    The circuit shown has a cutoff frequency at about 1 kHz. Rl, R2, CI, and C2 can be scaled to change this to any other desired frequency. Reprinted Url ...

  • DS1669 IC For Digital Volume Instead Of A Rotary Press Contr

    2015-01-10 08:47:3681

    Description: This circuit shows about DS1669 IC For Digital Volume Instead Of A Rotary Press Control Circuit? Diagram . Features: This is a replacement...

  • TC9400 Analog Division (Ratiometric Measurement)

    2015-01-10 08:27:59104

    A circuit which will divide one analog signal by another is one of the most difficult circuits to build.? TC9400 voltage-to-frequency converter make it...

  • Show an FM transmitter digital integrated circuits

    2015-01-10 08:15:3472

    The following figures show is to demonstrate an integrated FM transmitter. The circuit is very simple, and very practical. Recommend Duokanjibian The s...

  • 1Hz to 1MHz Frequency Meter with Digital Display

    2015-01-10 07:55:42101

    Figure 1 The circuit was designed to create a low cost frequency meter that will cover the range of 1 Hz to 1 MHz with a digital indication using three...

  • Loudspeaker Impedance Meter(78L05)

    2015-01-10 07:47:5372

    This article describes the Loudspeaker Impedance Meter (78L05). The principle is very simple, very practical. The circuit components can help you under...

  • How to build An Expandable SCR Based Burglar Alarm

    2015-01-10 07:17:0573

    Description This is a simple SCR based burglar alarm circuit. Its features include automatic Exit and Entry delays - together with a timed Bell cut-off...

  • Active Fourth-Order Low-Pass Filter Circuit

    2015-01-10 06:59:40486

    This circuit is a fourth-order low-pass filter with values for kHz. The values of Rv R2, C and C2, and R3, R4, C3 and C`4 can be scaled for operation a...

  • 60Hz Notch Filter (LM741)

    2015-01-10 06:56:29193

    This article describes a 60Hz Notch Filter (LM741). The content is very simple, very helpful. Components in this article can help you understand better...

  • ADSL and DSL Inline Phone Filter Circuit

    2015-01-10 05:57:09128

    DSL Filter Circuit When the ADSL and PSTN works on the same line at the same time, a problem the electronics in a normal telephone for high frequency s...

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