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Index 1743

The AB type amplifier circuit of LC-KING

Published:2011/6/19 22:05:00 Author:qqtang | Keyword: amplifier circuit

The AB type amplifier circuit of LC-KING is shown in the figure. (View)

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The instrument and meter circuit of the LED detector

Published:2011/6/19 22:04:00 Author:qqtang | Keyword: instrument, LED detector

The instrument and meter circuit of the LED detector
The LM358 tester can detect LED without polarity differentiating, so it can judge the lighting character of the LED. In the mass test, compared with the multimeter, it's time-saving and simple. See as the figure, a line of computing amplifier forms the low-frequency self-motivated oscillator, which outputs intermittent high LEV or low LEV on the output terminal. Another line of op-amp forms a phase inverter. When the oscillating circuit outputs high LEV, the inverter is outputting the low LEV; when the oscillating circuit outputs the low LEV, the inverter is outputting the high LEV. (View)

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The regulated micro switch power supply circuit

Published:2011/6/19 3:49:00 Author:Seven | Keyword: switch power supply

The regulated micro switch power supply circuit
(View)

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The micro intermediate power switch power supply circuit

Published:2011/6/19 7:44:00 Author:Seven | Keyword: intermediate power, power supply

The micro intermediate power switch power supply circuit
(View)

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The frequency shift key control modem circuit of XR-2207

Published:2011/6/19 7:49:00 Author:Seven | Keyword: frequency shift, key control modem

The frequency shift key control modem circuit of XR-2207
XR-2207 is a voltage control oscillating (VCO) function generator circuit, the modem circuit shown in the figure can generate rectangle wave and triangular wave (but it can't generate the sine wave). (View)

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The FT2275 (general) infrared remote control decoding circuit

Published:2011/6/19 7:52:00 Author:Seven | Keyword: infrared remote control, decoding circuit

Figure: The FT2275 (general) infrared remote control decoding circuit (View)

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The trigger circuit with functions of counting, setting and reset

Published:2011/6/19 7:55:00 Author:Seven | Keyword: trigger circuit, reset

The trigger circuit with functions of counting, setting and reset (View)

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The simplest standard Li-ion battery charger circuit

Published:2011/6/19 8:07:00 Author:Seven | Keyword: battery charger

The simplest standard Li-ion battery charger circuit
(View)

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The SAA3009/SAA3049 infrared remote control decoding circuit

Published:2011/6/19 8:09:00 Author:Seven | Keyword: infrared, remote control, decoding circuit

The SAA3009/SAA3049 infrared remote control decoding circuit
The SAA3009/SAA3049 typical application circuit (View)

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Jin Niu charger circuit

Published:2011/6/19 7:25:00 Author:Seven | Keyword: charger, Jin Niu

Jin Niu charger circuit
(View)

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The DC sector reverser power circuit of active clamping resonance

Published:2011/6/19 8:20:00 Author:Seven | Keyword: DC sector, active clamping resonance

The DC sector reverser power circuit of active clamping resonance is shown in the figure. (View)

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The simple and practical Lithium charger circuit

Published:2011/6/19 8:22:00 Author:Seven | Keyword: Lithium charger

The simple and practical Lithium charger circuit
(View)

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12AX7--the Shigeto tube pre-amplifier circuit

Published:2011/6/19 1:14:00 Author:Seven | Keyword: Shigeto, pre-amplifier circuit

12AX7--the Shigeto tube pre-amplifier circuit is shown in the figure. (View)

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The MC3367 (communication equipment) FM receiver circuit

Published:2011/6/19 1:16:00 Author:Seven | Keyword: communication equipment, FM receiver

Figure: The MC3367 (communication equipment) FM receiver circuit (View)

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The MC3367 logic frame circuit

Published:2011/6/19 1:04:00 Author:Seven | Keyword: logic frame circuit

Figure: The MC3367 logic frame circuit (View)

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MIC5158--the battery charger circuit

Published:2011/6/19 1:17:00 Author:Seven | Keyword: battery charger

MIC5158--the battery charger circuit
(View)

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The op-amp feedback serial connection voltage stable circuit

Published:2011/6/19 1:26:00 Author:Seven | Keyword: op-amp feedback, serial connection

The op-amp feedback serial connection voltage stable circuit

In the figure is the serial connection voltage stable circuit composed of op-amps, which consists of the reference voltage, comparing amplifier, control tube and sampling circuit, 4 parts in total. Voltage stabilizing process: Voltage stabilizing range:Therefore, the output voltage of the steady circuit ranges depending on R1/R2. (View)