Signal Processing

Pulse generator circuit with variable pulse width

Published:2011/11/28 21:24:00 Author:Ecco | Keyword: Pulse generator, variable pulse width

Pulse frequency depends on the size of the capacitor C , and it can use 0.1μF or other values according needings. 12KΩ resistor is the load resistor for op-amp open collector.   (View)

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The quartz crystal oscillator with external capacitor

Published:2011/11/25 1:14:00 Author:Ecco | Keyword: quartz crystal oscillator , external capacitor

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Colpitts oscillator circuit

Published:2011/11/24 21:29:00 Author:Ecco | Keyword: Colpitts oscillator

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Digitally controlled l00kHz oscillator circuit

Published:2011/11/24 21:26:00 Author:Ecco | Keyword: Digitally controlled , l00kHz , oscillator circuit

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Double-T RC oscillator

Published:2011/11/24 21:19:00 Author:Ecco | Keyword: Double-T , RC oscillator

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RC phase shift oscillator with adjustable output range

Published:2011/11/25 1:13:00 Author:Ecco | Keyword: RC , phase shift oscillator, adjustable output range

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The LC oscillator with automatically controlled output level

Published:2011/11/25 1:12:00 Author:Ecco | Keyword: LC oscillator, automatically controlled , output level

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Digital controlled audio oscillator

Published:2011/11/25 1:11:00 Author:Ecco | Keyword: Digital controlled , audio oscillator

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Dual-tube quartz crystal oscillator

Published:2011/11/24 2:10:00 Author:Ecco | Keyword: Dual-tube , quartz crystal oscillator

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RF -driven audio oscillator

Published:2011/11/24 1:55:00 Author:Ecco | Keyword: RF -driven , audio oscillator

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Sound level generator circuit

Published:2011/11/24 2:02:00 Author:Ecco | Keyword: Sound level generator

The audio signal frequency generated by the circuit is 1KHz, and its value depends on the three RC network of feedback branch road. Output voltage is about 4.2V when the load resistance is approximately 200Ω , and the output voltage's distortion factor is relative to the amplification factor of the transistors, it generally is between the K = 1 ~ 10%.   (View)

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lMHz oscillator using a TTL gate

Published:2011/11/24 2:03:00 Author:Ecco | Keyword: lMHz oscillator , TTL gate

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The 4.59MHz oscillator with TTL circuit

Published:2011/11/24 2:09:00 Author:Ecco | Keyword: 4.59MHz, oscillator, TTL circuit

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The improving crystal frequency circuit using parallel resonance

Published:2011/11/23 2:33:00 Author:Ecco | Keyword: improving crystal frequency, parallel resonance

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Practical RF signal oscillator

Published:2011/11/23 2:34:00 Author:Ecco | Keyword: Practical, RF signal , oscillator

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The oscillator using FET tube and transistor

Published:2011/11/23 2:35:00 Author:Ecco | Keyword: oscillator, FET tube , transistor

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The crystal oscillator circuit using CNOS inverter

Published:2011/11/23 2:37:00 Author:Ecco | Keyword: crystal oscillator, CNOS inverter

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The frequency multiplier circuit composed of PLL

Published:2011/11/23 2:36:00 Author:Ecco | Keyword: frequency multiplier , PLL

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Ceramic oscillator circuit

Published:2011/11/24 1:55:00 Author:Ecco | Keyword: Ceramic oscillator

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Ceramic filter oscillator circuit

Published:2011/11/24 1:54:00 Author:Ecco | Keyword: Ceramic filter oscillator

Figure A is the oscillator circuit composed ofthree-polar ceramic filter.Figure b is the oscillator circuit composed of two-polar ceramic filter.   (View)

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