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Index 1310

HIGH_LEVEL_WARNING_DEVICE

Published:2009/6/25 2:45:00 Author:May

HIGH_LEVEL_WARNING_DEVICE
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FLUID_LEVEL_CONTROLLER

Published:2009/6/25 2:44:00 Author:May

FLUID_LEVEL_CONTROLLER
This circuit can be used to maintain fluid between two levels. Variations on this control circuit can be made to keep something that moves within certain boundary conditions.   (View)

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PICOAMPERE_TO_VOLTAGE_COMVERTER_WITH_GAIN

Published:2009/6/25 2:43:00 Author:May

PICOAMPERE_TO_VOLTAGE_COMVERTER_WITH_GAIN
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LEVEL_SENSOR_FOR_CRYOGENIC_FLUIDS

Published:2009/6/25 2:43:00 Author:May

LEVEL_SENSOR_FOR_CRYOGENIC_FLUIDS
The sensor circuit is adaptable to different liquids and sensors. The constant-current source drives current through the sensing probe and a fixed resistor. The voltage-comparator circuits interpret the voltage drops to tell whether the probe is immersed in liquid and whether there is current in the probe.   (View)

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TTL_TO_MOS_LOGIC_CONVERTER

Published:2009/6/25 2:39:00 Author:May

TTL_TO_MOS_LOGIC_CONVERTER
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SINE_WAVE_TO_SQUARE_WAVE_CONVERTER

Published:2009/6/25 2:38:00 Author:May

SINE_WAVE_TO_SQUARE_WAVE_CONVERTER
The sine input is ac coupled by capacitor C; R1 and R2 bias the input midway between Vn and Vp, the input threshold voltages, to provide a square wave at the output.   (View)

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INDUCTORLESS_SWITCHING_REGULATOR

Published:2009/6/25 2:37:00 Author:May

INDUCTORLESS_SWITCHING_REGULATOR
In conventional applications, switching-regulator ICs regulate 6,, by controlling the current through an external inductor. The IC in A, however, driving a diode-capacitor network in place of the inductor, offers comparable performance for small loads. The network can double, triple, or quadru-ple the input voltage. Feedback from the R1/R2 voltage divider enables IC1 to set the regulated-output level. (As shown, the circuit derives 12 V from a 5- to 12-V input and provides as much as 2 mA of output cur-rent.) Adding a noninverting MOS driver (B) boosts the available output current to 20 mA. Substi-tuting the diode-capacitor network shown for an inductor allows this switching-regulator IC to deliver 2 mA at comparable line and load regulation, with somewhat reduced efficiency.   (View)

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PIERCE_OSCILLATOR

Published:2009/6/25 2:36:00 Author:May

PIERCE_OSCILLATOR
Circuit Notes The oscillator transistor is Q1, and the crystal is placed between the collector and base. Feedback is improved by the use of the collector-emitter capacitor C2. Transistor Q2 is used as an output buffer.   (View)

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FAST_LOGARITHMIC_CONVERTER

Published:2009/6/25 2:36:00 Author:May

FAST_LOGARITHMIC_CONVERTER
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CRYSTAL_CONTROLLED_OSCILLATOR

Published:2009/6/25 2:35:00 Author:May

CRYSTAL_CONTROLLED_OSCILLATOR
CRYSTAL_CONTROLLED_OSCILLATOR

Circuit Notes This circuit oscillates without the crystal. With the crystal in the circuit, the frequency will be that of the crystal. The circuit has good starting characteristics even with the poorest crystals.   (View)

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COLPITTS_OSCILLATOR

Published:2009/6/25 2:32:00 Author:May

COLPITTS_OSCILLATOR
Circuit Notes This circuit will operate with fundamental-mode crystals in the range of 1MHz to 20 MHz,Feedback is controlled by capacitor voltage divider C2/C3.The rfvoltageacross the emitter resistor provides the basic feedback signal.   (View)

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MULTIPLEXER_BCE_TOTPARALLEL_BCD_CONVERTER

Published:2009/6/25 2:35:00 Author:Jessie

MULTIPLEXER_BCE_TOTPARALLEL_BCD_CONVERTER
Converter consists of four quad bistable latches activated in the proper squence by the digit srtobe output of the LD110. The complemented outputs (Q) of the quad latch set reflects the state of the bit outputs when the digit strobe goes high. It will maintain this state when the digit srobe goes low.   (View)

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CRYSTAL_CONTROLLED_OSCILLATOR

Published:2009/6/25 2:35:00 Author:Jessie

CRYSTAL_CONTROLLED_OSCILLATOR
CRYSTAL_CONTROLLED_OSCILLATOR

Circuit Notes This circuit oscillates without the crystal. With the crystal in the circuit, the frequency will be that of the crystal. The circuit has good starting characteristics even with the poorest crystals.   (View)

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COLPITTS_OSCILLATOR

Published:2009/6/25 2:32:00 Author:Jessie

COLPITTS_OSCILLATOR
Circuit Notes This circuit will operate with fundamental-mode crystals in the range of 1MHz to 20 MHz,Feedback is controlled by capacitor voltage divider C2/C3.The rfvoltageacross the emitter resistor provides the basic feedback signal.   (View)

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TEMPERATURE_TO_FREQUENCY_CONVERTER

Published:2009/6/25 2:30:00 Author:Jessie

TEMPERATURE_TO_FREQUENCY_CONVERTER
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PRECISION_PHOTODIODE_COMPARATOR

Published:2009/6/25 2:28:00 Author:May

PRECISION_PHOTODIODE_COMPARATOR
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3LIGHT_METER

Published:2009/6/25 2:27:00 Author:May

3LIGHT_METER
This light meter has an eight-decade range. Bias current compensation can give input current resolution of better than ±2 pA over 15 ℃ to 55℃.   (View)

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BUTLER_EMITTER_FOLLOWER_OSCILLATOR(20_MHz)

Published:2009/6/25 2:26:00 Author:May

BUTLER_EMITTER_FOLLOWER_OSCILLATOR(20_MHz)
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WIDEBAND_HIGH_CREST_FACTOR_RMS_TO_DE_COMVERTER

Published:2009/6/25 2:26:00 Author:May

WIDEBAND_HIGH_CREST_FACTOR_RMS_TO_DE_COMVERTER
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OHMS_TO_VOLTS_CONVERTER

Published:2009/6/25 2:29:00 Author:Jessie

OHMS_TO_VOLTS_CONVERTER
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