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Electrical Equipment Circuit

Index 113



The ABS Circuit of the Citroen-Elysee Car

Published:2011/5/8 9:42:00 Author:Borg | Keyword: ABS Circuit, Citroen-Elysee

The ABS Circuit of the Citroen-Elysee Car
The ABS Circuit of the Citroen-Elysee Car

The ABS Circuit of the Citroen-Elysee Car   (View)

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zhongyi BCD-215 fridge circuit diagram

Published:2011/5/7 21:25:00 Author: | Keyword: fridge, circuit

zhongyi BCD-215 fridge circuit diagram
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Using NE555 Skillfully as Linear Capacitance Tester Circuit

Published:2011/5/5 2:54:00 Author:Joyce | Keyword: Using NE555 Skillfully as, Linear, Capacitance, Tester

Using NE555 Skillfully as Linear Capacitance Tester Circuit
Using NE555 Skillfully as Linear Capacitance Tester Circuit   (View)

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Using NE555 Skillfully as Speaker Protector Circuit

Published:2011/5/5 2:56:00 Author:Joyce | Keyword: Using NE555 Skillfully as, Speaker, Protector

Using NE555 Skillfully as Speaker Protector Circuit
Using NE555 Skillfully as Speaker Protector Circuit   (View)

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Using ZH-3 Skillfully as Darkroom Temperature Display Circuit

Published:2011/5/5 2:57:00 Author:Joyce | Keyword: Using ZH-3 Skillfully as, Darkroom, Temperature, Display

Using ZH-3 Skillfully as Darkroom Temperature Display Circuit
Using ZH-3 Skillfully as Darkroom Temperature Display Circuit   (View)

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Yangzi BCD-200 fridge circuit diagram

Published:2011/5/5 8:49:00 Author: | Keyword: fridge, circuit

Yangzi BCD-200 fridge circuit diagram
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1.5V liquid crystal display circuit

Published:2011/5/3 3:30:00 Author:muriel | Keyword: 1.5V , liquid crystal display circuit, MC14440

1.5V liquid crystal display circuit
The Motorola company's MC14440 CMOS integrated circuit has the function of timing and displaying the calendar. The 32.760 kHz NT cutting type quartz crystal and fine-tune capacitance can produce time-based signal.The display circuit only uses 1.5 V AAA battery, watch circuit can workfor more than one year, the accuracyof it is within ±1min.The voltage tripler which is composed of the schottky diode MBD101, can transform the 1.5 V battery output voltage to 4V, supply to LCD using.   (View)

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Same Polarity Driving Circuit

Published:2011/5/5 0:59:00 Author:Robert | Keyword: Same Polarity, Driving

Same Polarity Driving Circuit
The 74S140 driver with the same polarity, through the shielded cable, twisted-paircable or coaxial cable, transmits data to the HCPL-2602 optocoupler wide receiver in a high speed data transmission. The reflex action caused by active-ended receiver would not affect its performance. By connecting to a capacitor C and a resistance R in series could make its data transmission speed up to highest possible speed. The C should be as large as possible, and do not prevent the voltage regulator tube's shutoff during input signal negative bias. If try to let tPHL=tPLH, that can achieve the highest data transmission speed.   (View)

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Transformer Equivalent Circuit

Published:2011/5/4 21:59:00 Author:Robert | Keyword: Transformer, Equivalent

Transformer Equivalent Circuit
Transformer equivalent circuit is shown below.The approximate equivalent circuit can be used to calculate and analyze some issues of the transformer load operation, such as changes in the secondary side voltage of the parallel load distribution etc. which move the excitation branch to the end point. Little calculation error caused by calculation: the transformer's excitation current (which means the current with no load) is 2%-10% of the rated current. (Less than 1% for large transformer).   (View)

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spaceflight BCD-218W fridge circuit diagram

Published:2011/5/4 9:48:00 Author: | Keyword: fridge, circuit

spaceflight BCD-218W fridge circuit diagram
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SHEA-3200 electric pot circuit diagram

Published:2011/5/4 9:31:00 Author:Nancy | Keyword: electric pot

SHEA-3200 electric pot circuit diagram
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bifunctional electronic sterilizer circuit diagram

Published:2011/5/4 9:22:00 Author:Nancy | Keyword: bifunctional, electronic sterilizer

bifunctional electronic sterilizer circuit diagram
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SUNLIHT SM-348 power supply circuit diagram

Published:2011/5/4 9:47:00 Author:Nancy | Keyword: SUNLIHT, power supply

SUNLIHT SM-348 power supply circuit diagram
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SUNLIHT SM-546 power supply circuit diagram

Published:2011/5/4 9:49:00 Author:Nancy | Keyword: SUNLIHT, power supply

SUNLIHT SM-546 power supply circuit diagram
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Fun little toy circuit diagram

Published:2011/5/4 3:04:00 Author:Ecco | Keyword: Fun , little toy

Fun little toy circuit diagram
The circuit shows the fun little toy circuit. Closing the power switch, three small lights will emit randomly red, green, orange light. It mainly consists of six inverter digital integrated circuit CD4069 and three color light-emitting diodes and other components. Component selection: Manifold uses CD4069 digital integrated circuit, the manifold is a typical CMOS circuit. LED can choose 2EF301 discolor light-emitting diodes. Resistors use small-volume (1 / 8) W carbon resistors, capacitor uses CD11-10V electrolytic capacitor. Power supply uses 4 pieces of 5th battery. Other components are shown as the chart.   (View)

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Differential exposure meter circuit

Published:2011/5/3 6:18:00 Author:Christina | Keyword: Differential, exposure meter

Differential exposure meter circuit
The BPX63 photodiode's sensitivityis 10mA/IX. This circuit ensures that the figure Location only affected by the useful light but not affected by the noise signal. When the circuit is under the low light condition, this circuit can collects a series of short pulse light rapidly. When the camera shutter is not open, K1, K2 closed, so the output of the operational amplifier tied back to its input port. At the beginning of the exposure, K1 and K2 open, the circuit produces more than 3000 times magnification. So the integration capacitor C1 charged by the photocurrent to make the output voltage changed by the time. When the output voltage is 1V, T3's base-emitter starts to conduct. When the C1 feeds back through T3, the RL stops, so the exposure stops, power supply is +/-3V.   (View)

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Circuit of Wireless Stereo Speakers

Published:2011/5/3 2:49:00 Author:Felicity | Keyword: Circuit of Wireless Stereo Speakers,

Circuit of Wireless Stereo Speakers
Circuit of Wireless Stereo Speakers is showed in the picture above.   (View)

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Partial pressure temperature protection relay circuit diagram

Published:2011/5/3 2:35:00 Author:Rebekka | Keyword: Temperature protection relay, Partial pressure

Partial pressure temperature protection relay circuit diagram
Partial pressure temperature protection relay circuit diagram.   (View)

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Circuit of D201 Ultrasonic Humidifier

Published:2011/5/3 2:22:00 Author:Felicity | Keyword: Circuit of Ultrasonic Humidifier

Circuit of D201 Ultrasonic Humidifier
Circuit of D201 Ultrosonic Hulmidifier is showed in the picture above.   (View)

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Light Control Switch Circuit Of Photodiode BPX63

Published:2011/5/1 22:44:00 Author:Christina | Keyword: Photodiode BPX63, Light Control Switch

Light Control Switch Circuit Of Photodiode BPX63
It is improper to use the photoresistor or general photodiode when the light intensity is minimum, and you should use the photodiode BPX63 which has very small cut-off current. In this circuit, light continuously shine on the diode D1, if swich S1 and S2 close, the photocurrent will short circuit, FET T1,T2 and resistor R1,R2 constitute a source emitter follower. When the switch S2 closed, output power of op amp through the field-effect transistor T1 to connect the reverse input port. If swich S1,S2 open, the strong negative feedback circuit will be cut off, however, the work point of the field-effect transistor T2 will be change.   (View)

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