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  • High Speed Digital I/O Line Protectors Circuit

    2015-01-14 00:14:5666

    If the application is a high-speed digital I/O lines or high-frequency RF line, then the protection device should not add capacitance that could distor...

  • Heat Pumps Digital Vacuum Gauge Circuit

    2015-01-13 23:36:2797

    The testo 552 digital vacuum gauge is for the evacuation of heat pumps, air conditioning, and refrigeration systems. The innovative testo552utilizes a ...

  • The Full-Wave Rectifier and Averaging Filter (MAX487CSA)

    2015-01-13 23:35:3567

    This article describes the The Full-Wave Rectifier and Averaging Filter (MAX487CSA). The content is very simple, very helpful. Components in this artic...

  • 555 Timer as an Analog to Digital Converter

    2015-01-13 23:13:18134

    Figure 1 This 555 timer based circuit is a kind of voltmeter, also an analog to digital converter, that converts the analog input voltage to digital ou...

  • 20Hz High-Pass Rumble Filter, Subsonic Blocker

    2015-01-13 22:47:1886

    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...

  • Audio noise filter circuits (2N3819)

    2015-01-13 22:32:37118

    This article describes the Audio noise filter circuits (2N3819). The principle is very simple, very practical. The circuit components can help you unde...

  • Digital Guitar Tuner CIRCUIT (BC547)

    2015-01-13 22:01:21185

    This article describes the Digital Guitar Tuner CIRCUIT (BC547). The principle is very simple, very practical. The circuit components can help you unde...

  • Filters Tutorial

    2015-01-13 21:08:41180

    A filter circuit is like a sieve. It allows some things through and holds back others. In this case we are talking about AC frequencies. Some frequenci...

  • Digital capacitance meter

    2015-01-13 20:29:49193

    The principle of operation is counting the pulse number derived from a constant frequency oscillator during a fixed time interval produced by another l...

  • Self-tune filter (LM201)

    2015-01-13 19:58:0376

    This article is automatically adjust the filter principle diagram of the display. For your better understanding of the diagram, we are here to introduc...

  • Low-Capacitance High-Impedance Video Buffer

    2015-01-13 19:53:0664

    A video buffer circuit is characterized by its stable wide-band unity gain. Along with stable wide-band unity gain,? providing low capacitance and high...

  • Multiple feedback low pass filter

    2015-01-13 18:50:1371

    The low bias currents permit high resistance and low capacitance values to be used to achieve low frequency cutoff. fc = 10 Hz, AVCL = 4, Passband ripp...

  • IC DS1669 For Digital Volume Instead Of A Rotary Press

    2015-01-13 18:41:3191

    Description: This is a replacement Volume traditional rotation, with simple circuits. This circuit using a single IC that is at the heart of the work t...

  • Low Pass Active Filter by LM741

    2015-01-13 18:41:2889

    Low Pass Active Filter by LM741 When you want to filter low frequency gives can change only. I thinks the Low Pass Active Filter circuit help you. Beca...

  • MC14093 pulse width modulation controller

    2015-01-13 18:33:20205

    Motor drivers Using a MC14093 CMOS type IC, a quad 2-input NAND Schmitt trigger circuit can be designed a very simple pulse width modulation circuit co...

  • High-Pass Filter (RC)

    2015-01-13 16:54:1875

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

  • Diode digital thermometer circuit

    2015-01-13 16:50:5391

    This digital thermometer circuit diagram uses a common 1N4148 diode as the temperature sensor. The temperature coefficient of the diode, -2 mV /0C is e...

  • Digital Clock with MM5314N

    2015-01-13 16:26:3897

    Digital Clock with MM5314N ?? ??????? ????? ??? ??????????, ???? ??? ???? ??? ???????????? , ?? ??5314?, ??? ????? ??????????? ??? ?? ????????? ??? ???...

  • Visual modulation indicator

    2015-01-13 15:49:5171

    Indicator lamp brightness varies in step with modulated RF signal. Adjust R2 with transmitter on (modulated) until the lamp flashes in step with modula...

  • Biquad filter

    2015-01-13 15:37:3489

    The biquad filter, while appearing very similar to the state-variable filter, has a bandwidth that is fixed regardless of center frequency This type of...

  • Centronics port D/A converters and low-pass filter

    2015-01-13 15:29:1388

    I keep all rights to those circuits myself. You may freely build thosecircuits to yourself and your friends, but commercial use of those circuitsis not...

  • PIC16F873 Digital clock (XC9536)

    2015-01-13 15:10:59145

    This article describes the PIC16F873 Digital clock (XC9536). The content is very simple, very helpful. Components in this article can help you understa...

  • BiQuad Filter Circuit Diagram using LM3403 Quad Op Amp

    2015-01-13 15:05:4772

    This LM3403 op amp family including LM3303 known to be a monolithic quad op amp which have high gain, a compensated internal frequency that will assure...

  • Temperature-measuring-add-on-for-dmm-digital-voltmeter

    2015-01-13 14:46:1667

    The DVM-to-temperature adapter is built around a single IC, National`s LMlO. That micropower IC contains a stable 0.2 V reference, a reference amplifie...

  • Audio Notch Filter For Shortwave Receivers Circuit

    2015-01-13 14:35:2675

    The notch filter can be added to just about any receiver to attenuate a single frequency by more than 30 dB. This filter should be handy for reducing h...

  • How to build Speech Filter

    2015-01-13 14:12:2796

    Description The human speech apprehend a small area of frequencies, that is extended from 300HZ until 3KHZ. This spectrum is also internationally recog...

  • 555IC For Digital Volume Control Circuit Diagram

    2015-01-13 13:40:13115

    Description: The folloeing circuit shows about 555IC For Digital Volume Control Circuit Diagram. Features: including a 5V regulator, IC1 (555) is confi...

  • DS1803 Digital Potentiometer ? The Great Variable Resistor

    2015-01-13 13:13:19133

    You're still frustrated with your old-fashioned and limited functions potentiometer? Instead of being annoyed by it, why don't you spends several hours...

  • Tel protection filter

    2015-01-13 12:47:4863

    Tel Protection Filter ????? ??? ???? ??????? ?????????? ??? ??????????? ??????? ??? ??????????. ???????????? ?? ????? ??? ???? ??? ??? ?????????? ?????...

  • Digital Voltmeter and Ammeter Using CA3161E and CA3162E

    2015-01-13 12:27:18112

    Figure 1 The circuits were designed using two A/D converters to create a voltmeter and ampermeter. 1N4001 – a 1.0 Amp Silicon rectifier with voltage ...

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