Position: Index > Oscillator Circuit >

  • Single Gate Relaxation Oscillator

    2016-08-31 14:28:5681

    Below is a relaxation oscillator circuit using a 74HC14, an inverter with a Schmitt trigger input. Its mean that the transition point for an increasing...

  • VARYING_FREQUENCY_OSCILLATOR

    2016-08-31 12:01:55126

    Output frequency of alarm tone generator changes continuously. With suitable ampliler and loudspeaker, can easily be heard in noisy environments where ...

  • Easy_tune_sine_wave_oscillator

    2016-08-31 11:49:14122

    This circuit provides both sine- and square-wave outputs at frequencies from below 20 Hz to above 20 kHz, by varying R3. R8 sets amplitude.Distortion v...

  • 20Mhz-vhf-crystal-oscillator

    2016-08-31 11:18:28103

    A typical circuit at 20 MHz is shown. The crystal, which has an internal series resistance Rs of 14ohm, oscillates at its third harmonic. The diode cla...

  • The oscillator circuit diagram composed of crystal inverter

    2016-08-31 10:48:01102

    In the circuit, crystal X ( 3.2MHz ) forms the oscillator circuit, after its oscillation output is connected to BCD counter CD4518, it will divide the ...

  • OSCILLATOR_OUTPUT_STAGE

    2016-08-31 10:11:2475

    Used with incremental-tuning precision R-C oscillator for testing and aligning equipment having sharp resonances. oscillator signal is fed through phas...

  • TRANSDUCER_DRIVEN_CRYSTAL_OSCILLATOR

    2016-08-31 10:10:5671

    Sensitive 70-Mc one-tube oscillator feeds local and remote tank circuits to which capacitive or inductive transducers may be connetted, for conversion ...

  • TONE_BURST_OSCILLATOR_AND_DECODER

    2016-08-31 09:42:5495

    A tone burst sent at the beginning of each transmission is decoded (at receiver) by a PLL causing output from pin 3 of logic gate to turn on carrier-op...

  • 20_MHz_VHF_CRYSTAL_OSCILLATOR

    2016-08-31 09:38:5899

    A typical circuit at 20 MHz is shown. The crystal, which has an internal series resistance RS, of 14 Ω , oscillates at its third harmonic. The diode c...

  • Comparator Based Crystal Oscillator

    2016-08-31 07:51:1679

    Although a simple crystal oscillator may be built from one comparator of an LT1720/LT1721, this will suffer from a number of inherent shortcomings and ...

  • 74HC4060 14-stage binary ripple counter with oscillator

    2016-08-31 07:47:30166

    there is one drawback of using these chips comparing to 8250 chips, as there is no Programmable Baud Rate Generator or any other means of changing spee...

  • NE555N Timer Oscillator Circuits

    2016-08-31 06:29:18169

    The NE555N is a highly stable controller capable of producing accurate timing pulses. With a monostable operation, the time delay is controlled by one ...

  • CB_CRYSTAL_OSCILLATOR

    2016-08-31 05:13:0299

    Uses low-cost crystal having high series resistance, up to 30 ohms. Provides adequate output to supply most master oscillator-power amplifier applicati...

  • THREE_FREQUENCY_AUDIO_OSCILLATOR

    2016-08-31 04:58:4997

    The full circuit diagram for the audio sine-wave generator is shown. Resistors R1 and R2 bias the noninverting (pin 3) input of IC1, and their parallel...

  • TOUCH_OPERATED_CODE_PRACTICE_OSCILLATOR

    2016-08-31 04:04:2890

    A touch-operated CPO is shown in the figure. The gates of IC1-a are biased high through the two 22-MΩ resistors (R1 and R2), keeping its output low. G...

  • UNIVERSAL_TEST_OSCILLATOR

    2016-08-31 03:39:2396

    Crystal is in feedback path of Pierce oscillator, between base and collector of al, with 2.5-mH RF choke in place of tuned collector circuit. Oscillato...

  • How to Use VCO buffer for Isolating Oscillator Circuit

    2016-08-31 03:34:18122

    The article herein describes information on howvoltage controlled oscillator (VCO) buffermay isolate oscillator circuits output problems. The VCO buffe...

  • INDUCTION_HEATER_POWER_OSCILLATOR

    2016-08-31 03:16:2773

    Circuit includes power supplies for oscillator and keyer bias.-R. E. Mathews and F. R.Sias, Jr., Testing Space Craft with Induction Heaters, Electronic...

  • SIREN_OSCILLATOR

    2016-08-31 02:38:3570

    A CD4093 chip and a few components make up a siren oscillator, which drives power MOSFET T1. A 4-Ω speaker is driven directly from this device. The si...

  • Oscillator Buffers

    2016-08-31 01:45:4477

    CMOS buffers added to an op amp oscillator improve performance, largely as a result of nonsymmetry and variability of th e op amp`s output saturation v...

  • Wide-Range Crystal Oscillator Circuit

    2016-08-31 01:12:0979

    A circuit using one 7400 TTL10 can use crystals of the fundamental type, from 1 to about 13 MHz. Output is rich in harmonics, making this oscillator us...

  • Temperature_compensated_crystal_oscillator

    2016-08-31 00:47:5584

    This circuit uses an LTC1043 to differentiate between a temperature-sensing network and a dc reference. The singla-ended output biases a varactortuned ...

  • Synchronized_oscillator

    2016-08-30 22:38:3581

    This circuit shows a line-synchronized oscillator that will not lose lock under noisy line conditions. The circuit is suited to applications that requi...

  • Voltage-controlled oscillator circuit

    2016-08-30 22:27:1488

    The voltage-controlled oscillator circuit is as shown in the figure. The input voltage range of the oscillator is 0-10V, the change sensitivity is 1kHz...

  • Digitally_programmed_oscillator

    2016-08-30 21:52:3983

    Digitally programmed oscillator. The circuit uses an AD537 monolithic V/F converter and an AD7520 multiplying D/A convener. It is a programmable square...

  • CRYSTAL_OR_CAPACITOR_OSCILLATOR

    2016-08-30 19:40:3183

    Gives high stability from 800 kc to 3 Mc, from 0 to 65℃ with either crystal or capacitor. Optimum operating frequency can be found and utilized by ch...

  • STABLE_LOWFREQUENCY_CRYSTAL_OSCILLATOR

    2016-08-30 19:38:5188

    Circuit Notes This Colpitts-crystal oscillator IS ideal forlow frequency crystal oscillator circuits。 Ex-cellent stability is assured because the 2N3...

  • Multi-output crystal oscillator

    2016-08-30 18:34:3978

    The chart shows the multi-output crystal oscillator. It is mainly composed of three gates of A1, four resistors, two capacitors and a crystal. Rl ~ R4 ...

  • FET_PHASE_SHIFT_OSCILLATOR

    2016-08-30 16:50:38102

    Frequency of four-mesh phase-shift oscillator can be varied several cycles around 10 cps, using 2.5-meg pot. Attenuation of four-mesh feedback network ...

  • UJT_OSCILLATOR

    2016-08-30 16:23:2570

    When power is connected to the circuit, C1 charges through R1 and R3. When the voltage reaches the UJT gate's (G) threshold voltage (usually around 0.5...

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