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Index 408

Field-effect transistor RC bridge oscillator circuit

Published:2011/11/27 21:21:00 Author:Ecco | Keyword: Field-effect transistor, RC bridge , oscillator

Field-effect transistor RC bridge oscillator circuit
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Common phase shift oscillator (lkHz Quick Start gating circuit )

Published:2011/11/27 21:20:00 Author:Ecco | Keyword: Common , phase shift oscillator , lkHz, Quick Start, gating circuit

Common phase shift oscillator (lkHz Quick Start gating circuit )
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TTL crystal oscillator

Published:2011/11/28 0:38:00 Author:Ecco | Keyword: TTL , crystal oscillator

TTL crystal oscillator

Quartz crystal and the coupling capacitorin symmetric multi-harmonic are connectedin series to form the crystal oscillator circuit, andthe quartz crystal oscillation frequency depends on the resonant frequency,not R, C. Figure b changesthe coupling capacitorof Figure ainto the coupling resistor. Figure c, dare the deformations of Figure a, b, but also two practical circuits. (View)

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VGA sync signal automatic oscillator

Published:2011/11/28 0:34:00 Author:Ecco | Keyword: VGA , sync signal, automatic oscillator

VGA sync signal automatic oscillator
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RC bridge and RC bridge oscillator circuit

Published:2011/11/28 0:33:00 Author:Ecco | Keyword: RC bridge , RC bridge oscillator

RC bridge and RC bridge oscillator circuit

The principle of RC bridge: (View)

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RC low-frequency oscillator circuit

Published:2011/11/10 21:15:00 Author:Ecco | Keyword: RC, low-frequency oscillator circuit

RC low-frequency oscillator circuit
The oscillator with frequency below 10Hz is very appropriate to use RC oscillator. Zener diode is used here to stabilize the rate, the output peak - peak voltage can be adjusted between 0 ~ 4V , frequency is 6.5HZ. If it uses the value in the arc, the frequency can be as low as 0.01HZ. Oscillator's absorbing current is about 3mA. (View)

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RC phaser oscillator

Published:2011/11/10 20:57:00 Author:Ecco | Keyword: RC phaser oscillator

RC phaser oscillator
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RC phase-shift oscillator

Published:2011/11/10 20:55:00 Author:Ecco | Keyword: RC , phase-shift oscillator

RC phase-shift oscillator
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RC bridge oscillator and its equivalent circuit

Published:2011/11/10 20:54:00 Author:Ecco | Keyword: RC bridge oscillator , equivalent circuit

RC bridge oscillator and its equivalent circuit

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lkHz low-distortion oscillator circuit

Published:2011/11/10 20:53:00 Author:Ecco | Keyword: lkHz, low-distortion , oscillator circuit

lkHz low-distortion oscillator circuit
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Narrow pulse generator circuit ( Figure 1.5 )

Published:2011/11/22 20:24:00 Author:Ecco | Keyword: Narrow pulse generator

Narrow pulse generator circuit ( Figure 1.5 )

The circuit can produce a narrow pulse which is below 20ns, and the output is compatible with TTL circuit. The frequency spectrum less than 25MHz is approximately constant. Conversion selector switch 8 can change the output frequency, and the conversion selector switch 20 can change the delay time. Figure b shows the waveform diagram of M1, M2, M3 in Figure a. (View)

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The crystal oscillator circuit composed of inverter

Published:2011/11/22 20:51:00 Author:Ecco | Keyword: crystal oscillator, inverter

The crystal oscillator circuit composed of inverter
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The front-end circuit of PT100

Published:2011/12/6 1:41:00 Author:Ecco | Keyword: front-end

The front-end circuit of PT100
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LMl3600 variable gain amplifier circuit

Published:2011/12/6 1:40:00 Author:Ecco | Keyword: variable gain amplifier

LMl3600 variable gain amplifier circuit
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Reference voltage circuit using op amp

Published:2011/12/6 20:32:00 Author:Ecco | Keyword: Reference voltage , op amp

Reference voltage circuit using op amp
The reference voltage output circuit can be composed of several operational amplifiers. When the power supply voltage is 12V , the output voltage can be +2 ~ +10 V. Properly choosing the value of resistor R , it can make the current flowing tube be adaptive to the rating voltage of the regulator. (View)