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  • Pressure sensor with filter and amplification circuit

    2017-02-25 21:06:5662

    MAX4471 is amplifier.MAX9028 is the MAXIM company's low power comparator.Filter circuit uses band-pass filter composed of MAX267(allowing 0.8 ~ 38Hz si...

  • Three audio band-pass filters circuit

    2017-02-25 19:32:1767

    The figure as shown below is the complete set of three passive audio filters, which can be accessed or out of the circuit. These filters are designed f...

  • Butterworth filter has adjustable group delay

    2017-02-25 18:25:5263

    This Sallen-Key realization of a 5.25-MHz, three-pole Butterworth filter has a gain of 2V/V and can drive 75Ω back-terminated coax with an overall gai...

  • Circuit Diagram of Third-order Asymmetric Filter

    2017-02-25 18:14:5167

    The Third-order Asymmetric Filter has two output channels (UA1 and UA2), UA1 is the high-pass filtered output channel and the UA2 is the low-pass filte...

  • The Circuit Diagram of 1 MHz High-pass Filter Consists of OP

    2017-02-25 17:00:5063

    The figure shows the 1 MHz high-pass filter circuit. This circuit uses high speed current feedback operational amplifier OPA603 with 100MHz bandwidth a...

  • ACTIVE_800_CPS_PARALLEL_T_FILTER

    2017-02-25 16:54:0572

    Potentiometer adjusts amount of rejection to compensate for tolerances of components. Second emitter-follower provides lower output impedance so feedba...

  • Higher Order Filters

    2017-02-25 13:36:4370

    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...

  • ACTIVE_LOW_PASS_FILTER_WITH_DIGITALLY_SELECTED_BREAK_FREQUEN

    2017-02-25 13:05:1868

    Variable low-pass ftlter has break frequencies at1, 10, 100 Hz and 1 kHz. The break frequency isThe low frequency gain isA second break frequency（a z...

  • Universal Active Filter circuit

    2017-02-25 12:37:5662

    Universal Active Filter circuit is shown below.Referring to the circuit as shown, its center frequency f0 = 3.4kHz, notch frequency fc = 9.5kHz and qua...

  • 45_MHz_NOTCH_FILTER_

    2017-02-25 12:22:3365

    Circuit NotesComponenc value sensitivity is extremely critical, as are temperature coefficients and matching ofthe components. Best performa,ce is atta...

  • 20_Hz_HIGH_PASS_RUMBLE_FILTER

    2017-02-25 09:42:4474

    Second-order rumble filter for phonograph amplifier has 1-dB peak and 20-Hz cutoff frequency. Design uses large resistance values to permit use of smal...

  • Four-stage telecom filter circuit with 1KHZ frequency

    2017-02-25 09:30:3861

    Third-order asymmetric filter circuit has two ways of output UA1 and UA2, the former is high-pass filter output, and the later is low-pass filter outpu...

  • Q_MULTIPLIER_FOR_TONE_FILTER

    2017-02-25 08:47:37104

    Provides stable multiplication over wide temperature range, as required for high-selectivity singlefrequency telemetry tone filter. Center frequency is...

  • Derivative_controlled_low_pass_filter

    2017-02-25 08:45:5967

    Derivative-controlled low-pass filter. This circuit settles rapidly in response to step changes, then assumes a long time constant for filtering noise....

  • Q and Frequency Adjustable Narrow Band Filter (741)

    2017-02-25 08:32:2078

    The circuit is an active Q and frequency adjustable narrow band filter. It adopts the form of Wien bridge positive feedback ,but the loop gain is under...

  • SIMPLE_HIGH_PASSHP_ACTIVE_FILTER_FOR_1_kHz

    2017-02-25 00:58:1763

    This simple 1kHz filter uses a voltage follower and an RCsection for a filter element,For other frequencies f3 dB-1/6.28 R1C1. The response drops 6 dB/...

  • Operation amplifier venturi filter circuit diagram

    2017-02-25 00:42:5261

    For all frequencies venturi filters are the same gain, but it can change the angle of signals, it also can be used for angle correction circuit at the ...

  • Active Lowpass Filter Circuit with Attenuation of -18dB Ever

    2017-02-25 00:41:5875

    As shown in the figure is an active low pass filter circuit with attenuation of -18dB every octave. The circuit is composed of a passive filter with at...

  • Bandpass filter circuit

    2017-02-25 00:05:5167

    This circuit should determine the value of the R1 aforehand which is similar to the signal source resistance r1/ The principle of parameter selection i...

  • Two_op_amp_bandpass_filter

    2017-02-24 23:03:1470

    This circuit uses two LM3900 Norton amplifiers as a 1-kHz bandpass filter with a Q of 25, and a gain of 15 (23 dB). National Semiconductor, Linear Appl...

  • The Circuit Diagram of Active High-pass Filter (LM102)

    2017-02-24 22:10:4271

    The figure shows the circuit diagram of active low-pass filter. The cutoff frequency fc=100Hz. In the circuit, the ratio of R1 to R2 or of C1 to C2 can...

  • ZOBEL_BAND_PASS_FILTER

    2017-02-24 20:51:2169

    Both examples give at least 40 db attenuation below 7,500 cps and above 12,500 cps, for 600-ohm source and load resistances.－K．Lichtenfeld, Method ...

  • Frequency adjustable bandpass filter circuit

    2017-02-24 20:13:0070

    The frequency adjustable bandpass filter circuit is as shown in the figure. This filter's resonance frequency can be adjusted through the coaxial poten...

  • MC141625 - comb filter IC diagram

    2017-02-24 20:00:2566

    MC141625 is the comb filter integrated circuit manufactured by Motorola, which is widely used in a variety of domestic and imported color television sc...

  • One_op_amp_bandpass_filter

    2017-02-24 18:05:5668

    This circuit uses an LM3900 Norton amplifier as a 1-kHz bandpass filter with a Q of 5 and unity gain. National Semiconductor, Linear Applications Handb...

  • Universal Active Filter circuit

    2017-02-24 18:05:4971

    Universal Active Filter circuit is shown below.Referring to the circuit as shown, its center frequency f0 = 3.4kHz, notch frequency fc = 9.5kHz and qua...

  • RECEIVE_FILTER

    2017-02-24 16:18:2467

    Used as prefilter having controlled group-delay distortion, ahead of receiving modem in data transmission system. Values shown are for 950-1400 Hz answ...

  • AUDIO_NOTCH_FILTER

    2017-02-24 15:10:3268

    With the circuit shown here the response at one octave off tune is within 10% of the far out response: notch sharpness may be increased or reduced by r...

  • The spectral character circuit of light filter

    2017-02-24 15:05:0961

    The sensor consists of the shell, light filter, heat electric element PZT, FET pipe, resistor and diode,etc. The light filter is installed at the windo...

  • The circuit diagram of notch filter consists of MC33171

    2017-02-24 14:40:1564

    The figure shows the notch filter circuit. This circuit uses high-performance amplifier MC33171 to build up notch filter. This component has wide bandw...

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