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  • Language filter circuit

    2017-02-24 14:28:2370

    The circuit can be used to limit the language frequency band, which can remove interference and noise except the clatter. This function can be achieved...

  • 4th_order_1_kHz_Butterworth_switched_filter

    2017-02-24 14:13:0663

    Only six resistors are required for this low-pass filter. However, a 100-kHz clock is required. National Semiconductor, Linear Applications Handbook, 1...

  • Piezo_ceramic_based_filter_with_differential_network

    2017-02-24 14:10:1568

    This circuit is an improved version of the Fig. 7-10 circuit. With the Fig. 7-11 circuit, a portion of the input is fed to the noninverting input of A1...

  • PINK_NOISE_FILTER

    2017-02-24 12:16:0865

    Used in acoustics for measuring transducer characteristics, absorption-reflection and transmission coefficients of materials, and room parameters such ...

  • First-order Butterworth Active Low-pass Filter Circuit

    2017-02-24 07:27:2163

    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...

  • ACTIVE_FILTER_

    2017-02-24 06:53:5165

    Equal-value components can be quite an advantage in filter designs when the total costs associated with the procurement, stocking, and assembly of the ...

  • Third-Order High-Pass Filter

    2017-02-24 06:52:2666

    This report focuses on active third-order high-pass filter design using operational amplifiers. High-pass filters are commonly used to implement high f...

  • BANDPASS_ANSWER_FILTER

    2017-02-24 06:29:0964

    Provides gain of 15 dB over bandwidth of 1020 to 1320 Hz for low-speed modem system using Motorola MC6860 IC. Attenuation is 35 dB at 2225 Hz, as requi...

  • Rectifier and filter circuit diagram

    2017-02-24 05:28:5761

    The function of the rectifier and filter circuit is to change AC into 300V DC voltage. The LCD power supply circuit often adopts bridge rectifier and c...

  • General Active Filter Circuit

    2017-02-24 05:10:2164

    In the circuit, its center frequency f0=3.4kHz, and the trap frequency fe=9.5kHz, the quality factor Q=3.4. For the high frequency filter, the transmit...

  • High Q value trapped wave filter circuit

    2017-02-24 03:12:2862

    The high Q value trapped wave filter circuit is as shown in the figure. Because the double-T network filter can have the better attenuation characteris...

  • Extended_notch_filter

    2017-02-24 00:11:0365

    This circuit is similar to that of Fig. 7-17, but uses two sections of an LT1013 following the LTC1062. Figure 7-18B shows the frequency response for a...

  • Circuit of a Filter with 4 Characteristics Simultaneously

    2017-02-23 20:45:4267

    As shown in the figure is a filter circuit with four characteristics at the same time, that is band-pass (BPF), low pass (LPF), high pass (HPF) and eli...

  • Inductance Filter Circuit

    2017-02-23 18:51:3763

    The capacitance filter circuit's output internal resistance is very big. When the RL changing, the port voltage would also change. Also, the when curre...

  • 3_1_TRACKING_FILTER

    2017-02-23 18:45:5365

    Connection shown for Exar XR-215 PLL IC tracks input signal over 3:1 frequency range centered on free,running frequency of VCO. Tracking range is maxim...

  • Bandwidth adjustable audio filter circuit with the 900Hz cen

    2017-02-23 16:26:1665

    This circuit uses the Wien-bridge, it has the adjustable bandwidth and the center frequency is 900Hz, if the 10K potentiometer's level is too low, ther...

  • electronic filter circuit

    2017-02-23 16:18:1265

    BG1 and BG2 form mulriple pipe.This circuit adds the filter element to the base of mulriple pipe which is different from others. The magnification coef...

  • ACTIVE_BANDPASS_FILTER

    2017-02-23 15:04:0981

    The circuit is a two-pole active filter using a TL081 op amp. This type of circuit is usable only for Qs less than 10. The component values for this fi...

  • ADJUSTABLE_400_CPS_TUNING_FORK_FILTER

    2017-02-23 15:03:2265

    Tuning-fork frequency is adjusted by varying current in extra magnet coils facing ends of tines. Current change of 1 ma in frequency-adjust coils gives...

  • VARIABLE_Q_FILTER_FOR_400_Hz

    2017-02-23 14:51:3866

    A bootstrapped twin T notch filter in this circuit can yield an effective Q of up to 10. RS adjusts the feedback, hence the Q. Values of C1 and C2 can ...

  • PI Filter Designer

    2017-02-23 13:57:0372

    PI Filter Designer is a simple 3 element 50 ohm input and output impedance pi filter designing application. This program allows the user to design simp...

  • Digital Comb Filter Intergrated Circuit

    2017-02-23 13:24:2762

    SAA4961 is a PAL/NTSC comb filter (Y/C separation) integrated circuit which is widely used in big screen and various other screen color TVs.First,Funct...

  • 2_W_WITH_LOW_PASS_FILTER

    2017-02-23 12:25:0960

    Developed for use in dual-conversion amateur receiver. Detected audio is passed through active low-pass filter-opamp arrangement U1-U2 and further ampl...

  • Basic_piezo_ceramic_based_filter

    2017-02-23 12:08:5266

    This circuit is a highly selective bandpass filter that uses a resonant ceramic element and a single amplifier. The ceramic element looks like a high i...

  • MAX262 Programmable filter circuit

    2017-02-23 10:44:5382

    Programmable filter is mainly achieved by the MAX262. MAX262 achieves programmable filter from filter parameters programmed by the SPI bus, and the cen...

  • Butterworth Filter

    2017-02-23 09:51:2471

    In many low-pass filter applications it is necessary that the closed-loop gain is as close to unity as possible within the passband. The Butterworth fi...

  • Ultrasonic_filter

    2017-02-23 07:53:1964

    This circuit shows both sections of an LM833 that is connected as a filter to reject undesired ultrasonic signals. The filter characteristic is 4th-ord...

  • Third Terrace Asymmetric Filter Circuit

    2017-02-23 06:59:4164

    Third terrace filter has two output circuits--UA1, UA2. The former one is high pass filter output, and the later one is low pass filter output....

  • Classification of Active Filters

    2017-02-23 06:30:5562

    The most widely used active filters are (i)                 low-pass (ii)                 high-pass (iii)        ...

  • Capacitance Driving Circuit with Filter Unit

    2017-02-23 05:23:1263

    C1, R1, RV1, L1 and R2 constitute the first level power R2 filter circuit, which is used to the input transient momentary high voltage filter.C2, R3 co...

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