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  • Digital-peak-detector

    2015-01-17 08:28:0274

    The peak detector tracks and holds, using the charge-storing ability of a capacitor, the highest output voltage from a transducer. Initially, the volta...

  • Pulse width modulation using 555

    2015-01-17 08:19:31109

    IC1 astable gives a fixed square wave at pin 3, C1 and R1 derive uS trigger pulses from IC1 and this will trigger IC2 monostable or single shot, the vo...

  • Low Pass Active Filter (UA741)

    2015-01-17 06:26:52131

    This article describes the Low Pass Active Filter (UA741). The content is very simple, very helpful. Components in this article can help you understand...

  • Input Impedance Booster II

    2015-01-17 06:01:3080

    The input resistance of a.c.-coupled op amp circuits depends almost entirely on the resistance with which the d.c. setting is determined. If CMOS op am...

  • Input Impedance Booster Circuit Diagram

    2015-01-17 03:51:4974

    The input impedance of a.c.-coupled op amp circuits depends almost entirely on the resistance that sets the d.c. operating point. If CMOS op amps are u...

  • Band Stop Filter

    2015-01-17 03:14:27140

    The bandpass fil-ter passes one set of frequen-cies while reject-ing all others. The band-stop filter does just the opposite. It rejects a band of freq...

  • MF10 Full Duplex Modem Filter Diagram Schematic and Applicat

    2015-01-17 02:32:0776

    The herein schematic is a complete full duplex 300 Baud modem filter as one of filter implementation using the MF10 Versatile Monolithic Active Filter ...

  • Amplitude Modulation Receiver Circuit

    2015-01-17 02:30:5681

    Figure 1 The circuit was designed to be able to obtain signals via amplitude modulation where the sensitivity and selectivity is fairly good. Amplitude...

  • Working of Digital Cameras

    2015-01-17 01:21:4771

    I have already described about the working of a camera. Almost all the basics of this post have been explained there. Now let us know more about a digi...

  • Digital Thermometer Circuit Diagram using IC741

    2015-01-17 01:14:33171

    Byusing operational amplifier IC741we can make adigital thermometer circuitwhich can measure temperatures up to 150C. As you might see in the following...

  • Higher Order Filters

    2015-01-17 00:47:19122

    Higher Order Filters From the discussion made so far on the filters, it may be concluded that in the stopband the gain of the filter changes at the rat...

  • 3KHz LOW PASS FILTER PLUS AUDIO AMP

    2015-01-17 00:43:2677

    This circuit uses a switched capacitor filter IC from National Semiconductor to filter signals with frequencies higher than the 3KHz needed for voice a...

  • Digital Remote Thermometer (LM331)

    2015-01-17 00:34:5881

    Remote sensor sends data via mains supply Transmitter circuit diagram: Transmitter parts: R1,R3________100K 1/4W ResistorsR2___________47R 1/4W Resisto...

  • Digital Encoder Circuit Using Stepper Motor

    2015-01-17 00:13:22165

    Using circuit depicted in the schematic diagram below, the direction and shaft rotation of stepper motor can be seen on the LED display. Alternative to...

  • 1.2GHz VCO With Linear Modulation(MAX2754)

    2015-01-16 23:40:4074

    This article briefly describes the 1.2GHz VCO With Linear Modulation (MAX2754). This principle is easy to understand, but also very practical. Depth un...

  • Sensitive gate SCR telephone hold button

    2015-01-16 23:19:0069

    Although a hold feature is standard on most new phones, a lot of us still use the origional bell phones. Those of us that require a hold feature will f...

  • OV7725 high performance, all-digital VGA camera solution App

    2015-01-16 22:28:15129

    The OV7725 Camera Chip sensor is a high performance 1/4 inch, single-chip VGA camera and image processor in a small footprint package. Operating at ful...

  • Bandpass Filter for Bell103A Originator Modem

    2015-01-16 21:50:1570

    Bell103A modem standard specify that the originator (the caller) uses 1070Hz and 1270Hz frequency shift keying for transmission, and listen for 2025/22...

  • Digital volume control (1N4001)

    2015-01-16 21:06:2677

    This article describes the Digital volume control (1N4001). The content is very simple, very helpful. Components in this article can help you understan...

  • Long Period SCR Timer

    2015-01-16 20:51:4273

    This is a SCR timer circuit. Here, SCR is used to drive the final actuator, the buzzer.? The time constanst of this circuit is determined by? R1 and C1...

  • 74HC138 Digital Integrated Circuit Applications

    2015-01-16 20:10:23139

    74HC138 is a high-speed CMOS 74HC138 pin compatible with low power Schottky TTL (LSTTL-) series. 74HC138 decoder accepts three binary weighted address ...

  • Band Pass Filters

    2015-01-16 19:31:27192

    Band Pass Filter A band-pass filter is a circuit which is designed to pass signals only in a certain band of frequencies while attenuating all signals ...

  • 6090 digital decoder schematics (BC846B)

    2015-01-16 18:57:4782

    This article describes the 6090 digital decoder schematics (BC846B). The content is very simple, very helpful. Diagram showing the principle is as foll...

  • First-order butterworth active low-pass filter

    2015-01-16 18:51:4785

    Butterworth filter is a type of filter whose frequency response is flat over the passband region. Low-pass filter (LPF) provides a constant output from...

  • Voice Bandwidth Filter(TL072)

    2015-01-16 18:44:01123

    This article describes the Voice Bandwidth Filter (TL072). The principle is very simple, very practical. The circuit components can help you understand...

  • Ratio Detector for FM Demodulation

    2015-01-16 17:15:1689

    This view is not far from wrong because the operation of FM detectors is widely regarded as mysterious. The ratio detector to find out how it works, wi...

  • Variable-Frequency Audio Bp Filter Circuit

    2015-01-16 16:34:1768

    This variable-frequency, audio bandpass filter is built around two 741 op amps that are connected in cascade. Two 741 op amps are configured as identic...

  • Voice Transmitter via Frequency Modulation

    2015-01-16 15:25:1165

    Figure 1 The circuit is designed to establish a voice transmitter by means of frequency modulation band. Modulation can be defined as the modification ...

  • Digital Volume Control Circuit Diagram With DS1669 IC

    2015-01-16 15:23:27370

    Description: The following circuit shows a Digital Volume Control Circuit Diagram. This circuit based on the DS1669 IC. Features: as a manual volume co...

  • Tiny ?MEMS? Device ? The Future Electronic Signals? Filter

    2015-01-16 14:53:5968

    The electronic devices are getting smaller and smaller in present days. Many big corporate have been invested in the electronics’ RD, so that they ca...

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