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  • Notch Filter Made With High and Low Pass Filter

    2015-01-09 15:46:0472

    Figure 1 The circuit was designed with the combination of high pass filter and low pass filter to create a notch filter circuit. High Pass Filter – a...

  • State Variable Filters

    2015-01-09 14:28:5671

    With the advancement inIC technology, a number of manufacturers now offer universal filters having simultaneous low-pass, high-pass, and band-pass outp...

  • RF AGC with Digital Control

    2015-01-09 14:23:5988

    The AGC is used in many system especially communications. This AGC? works at 50Mhz, and the output voltage is set by a digital signal that is needed by...

  • How to build Digital Voltmeter

    2015-01-09 13:59:36103

    Circuit diagram The ICL7107 is a 3 1/2 digit LED A/D convertor. It contains an internal voltage reference, high isolation analog switches, sequential c...

  • 5-Pole Low-Pass Filter Circuit

    2015-01-09 13:54:2185

    The LTC1063 is the first monolithic low-pass filter that simultaneously offers outstanding dc and ac performance. It features internal or external cloc...

  • Digital Stop Watch

    2015-01-09 13:24:4387

    Make a Digital Stop Watch Description A digital stop watch built around timer IC LM555 and 4-digit counter IC MM74C926? with multiplexed 7-segment LED ...

  • Digital Quality Microphone Pre Ampl (LM1036N)

    2015-01-09 13:11:1770

    This article describes the Digital Quality Microphone Pre Ampl (LM1036N). The content is very simple, very helpful. Components in this article can help...

  • Frequency Modulation (FM) Tutorial

    2015-01-09 13:10:3669

    With AM, the frequency of the carrier is fixed and the modulating signal controls carrier amplitude. With FM, the amplitude of the carrier is kept cons...

  • Digital to Analog Converters (D/A)

    2015-01-09 11:23:31121

    A D/A Converter is used when the binary output from a digital system is to be converted into its equivalent analog voltage or current. The binary outpu...

  • 750 MHz, 8x8 Analog Crosspoint Switch(ADV3228)

    2015-01-09 11:01:5175

    This article describes the 750 MHz, 8x8 Analog Crosspoint Switch (ADV3228). The principle is very simple, very practical. The circuit components can he...

  • Biquad Active Filter

    2015-01-09 10:59:59165

    Introduction Operational amplifiers can be used to realize a linear system with an arbitrary biquadratic transfer function, as shown at the right. The ...

  • Monolithic/Hybrid Digital to Analog Converters

    2015-01-09 10:54:4574

    Earlier, I had explained two DIGITAL TO ANALOG CONVERTERS . Both of them have been designed for four inputs. But, if the number of inputs is more than ...

  • Digital compass schematic (SP3232EH)

    2015-01-09 10:00:0084

    The schematic diagram is a schematic diagram digital compass. You understand schematicdiagram of the digital compass, we give you introduce digital com...

  • High-Impedance Input Hi-Fi Tone Control

    2015-01-09 09:42:35121

    Tone control circuit is an electronic circuit which is designed to manipulate the tone of audio signal. Tone of audio signal is analog to color in ligh...

  • Digital pedometer circuit

    2015-01-09 09:19:1178

    Max. range: 9.950 meters with tw1o digits Slip it in pants` pocket for walking and jogging Parts: R1,R3____22K 1/4W Resistor R2________2M2 1/4W Resisto...

  • How to build Digital Electronic Lock

    2015-01-09 08:50:2575

    Circuit Description The digital lock shown below uses 4 common logic ICs to allow controlling a relay by entering a 4 digit number on a keypad. The fir...

  • FSK Filter circuit

    2015-01-09 08:30:1371

    FSK or Frequency-Shift Keying is a form of frequency modulation in which the modulating signal shifts the output freq. between predetermined values. If...

  • High-q-notch-filter

    2015-01-09 08:01:20146

    This circuit shows a twin-T network connected to an LMl02 to fonn a high-Q, 60-Hz notch filter. The junction of R3 and C3 which is normally connected t...

  • How to build Analog Milliamp Meter Used as Voltmeter

    2015-01-09 07:48:4397

    Circuit diagram A milliamp meter can be used as a volt meter by adding a series resistance. The resistance needed is the full scale voltage reading div...

  • Digital Main Voltage Indicator

    2015-01-09 07:33:1573

    Continuous monitoring of the mains voltage is required in many applications such as manual voltage stabilisers and motor pumps. An analogue voltmeter, ...

  • Digital Voltage Selection Control for L200 Regulator (SN74LS

    2015-01-09 06:58:1398

    This article describes the Digital Voltage Selection Control for L200 Regulator (SN74LS14D). The content is very simple, very helpful. Components in th...

  • Continuous-wave filter

    2015-01-09 04:52:4976

    This article is a continuous wave filter circuit principle. Combined with the text to understand the principle diagram will be more efficient. As shown...

  • Pulse Width Modulation DC Motor Control

    2015-01-09 03:48:5470

    Often, people attempt to control DC motors with a variable resistor or variable resistor connected to a transistor. While the latter approach works wel...

  • The Full-Wave Rectifier and Averaging Filter

    2015-01-09 03:21:4067

    The heart of an average reading, rms calibrated AC voltmeter is shown in figure below. Its a rectifier and averaging filter. We can remove the averagin...

  • HMC5883L 3-Axis Digital Compass IC

    2015-01-09 03:18:4074

    The HMC5883L is a surface-mount, multi-chip module designed for low-field magnetic sensing with a digital interface for applications such as low-cost c...

  • Full Wave Rectifier Circuit with Averaging Filter

    2015-01-09 02:39:1169

    This circuit is average reading use rms calibrated AC voltmeter. Deletion of C2 removes the averaging function and provides a precision full-wave recti...

  • Digital Voltmeter with 3-Digit Output by PIC16F676

    2015-01-09 01:14:09181

    Figure 1 The construction of the device uses PIC16F676 for reading analog signal such as voltage, and displaying the 3-digit output by using 7-segment ...

  • Active high pass filter circuit using LM741

    2015-01-09 00:57:02274

    This is active high pass filter circuit for 327Hz frequency using LM741 orLM741 circuits. It will use to build Harmonic at 3 of 130.81 frequency have t...

  • Digital Main Voltage Indicator(CD4067B )

    2015-01-09 00:38:28104

    This article briefly describes the Digital Main Voltage Indicator (CD4067B). This principle is easy to understand, but also very practical. Depth under...

  • Square Root Mode for AD532 Analog Processor

    2015-01-09 00:11:5576

    The following schematic diagram shows us about the connections for square root mode for ADS532 analog processor chip.? Similar to the division mode, th...

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