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Index 2168

Buick start-up circuit diagram

Published:2011/4/5 22:35:00 Author:Jessie | Keyword: start-up

Buick start-up circuit diagram
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Buick dashboards circuit

Published:2011/4/5 22:45:00 Author:Jessie | Keyword: dashboards

Buick dashboards circuit
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Proportion temperature regulator circuit with integrated flip-flop TDAl023

Published:2011/3/22 22:59:00 Author:Jessie | Keyword: Proportion temperature regulator, integrated flip-flop

Proportion temperature regulator circuit with integrated flip-flop TDAl023
This circuit can be used to control the 5℃ to 35℃indoor temperature or other heating equipments. The maximum heating power depends on its thyristor,this one issuitable for 2kW power, and thyristor is BT139. Temperature is controlledby the bridge road which composed by thermistors, resistance R1 and potentiometer Rp, the actual voltage and given voltage respectively adds on the U6 and U9 of integrated flip-flop TDA1023. If the room temperature is far belowthe given temperature,heating machine workswith all the power. If the room temperature is 1K differ from the given temperature,the proportional adjustment will be achieved. (View)

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Two-seat temperature regulator circuit with schmitt toggle

Published:2011/3/22 23:00:00 Author:Jessie | Keyword: temperature regulator circuit, schmitt toggle

Two-seat temperature regulator circuit with schmitt toggle
Temperature sensor adopts thermal resistor, it's inside measure current approximates constant measuring current. At low temperatures, thermistors's over voltage is high,current flows through the transistor onthe left of Schmitt toggle, and relay release. The heating device which has to be adjusted should contact relay's closed point too. (View)

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Polarized absorption circuit-RLD network

Published:2011/3/21 1:26:00 Author: | Keyword: RLD network

Polarized absorption circuit-RLD network
We can see from the table, relatively with parallel RCD network is series RLD network, this network is a polar opening absorption circuit. The components of RLD network are: Lv inductor and an Rv-Dv series branch parallel as shown. absorber circuit nonpolarity absorber circuit heteropolarity absorber circuit turn off absorb Parallel Cv, du v/dt=Io/Cv Parallel RCD(Rv, Dv Parallel, and serial with Cv) open up absorb serial Lv, di v/dt=Ui/Lv serial RLD(Rv, Dv in serial, and Parallel with Lv) The role of Rv-Dv series branch is in the process of shut off the switching tube, the electric energy stored in Lv can be released through the Rv-Dv series slip, avoided the switching tube was damaged due to the high voltage. (View)

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Adjustable speed vacuum cleaner circuit

Published:2011/3/31 2:42:00 Author:Nicole | Keyword: vacuum cleaner

Adjustable speed vacuum cleaner circuit
The vacuum cleaner uses controllable silicon components to form timing circuit, it can control the motor speed according to needs of the size of suction pipe fortune. The timing circuit as below is comparative maturity, it is widely used in high grade and high power vacuum cleaner. (View)

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Car wiper timing circuit

Published:2011/4/1 1:30:00 Author:Nicole | Keyword: car wiper, timing

Car wiper timing circuit
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Sequential timer circuit

Published:2011/4/1 1:48:00 Author:Nicole | Keyword: sequential timer

Sequential timer circuit

The 556 double timer transports the first half to the latter half by 0.001μF coupling capacitance, giving a total delay which is equal to the sum of single delay. The moment of 6-pin grounding can start the first half of timer. After determining the time interval by 1.1R1C1, the second timer starts delaying, the value is decided by 1.1R2C2. (View)

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Electronic clock improvement circuit diagram

Published:2011/4/2 2:16:00 Author:Nicole | Keyword: Electronic clock

Electronic clock improvement circuit diagram
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Short-circuit protector with relay

Published:2011/4/2 2:19:00 Author:Nicole | Keyword: short-circuit protector, relay

Short-circuit protector with relay
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High power DC motor speed control circuit

Published:2011/4/2 2:22:00 Author:Nicole | Keyword: motor speed control

High power DC motor speed control circuit
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Electric fan stepless speed regulation circuit

Published:2011/4/2 2:29:00 Author:Nicole | Keyword: electric fan, stepless speed regulation

Electric fan stepless speed regulation circuit
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Y982 electric heater temperature control circuit

Published:2011/4/2 2:34:00 Author:Nicole | Keyword: electric heater, temperature control

Y982 electric heater temperature control circuit

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Typical application circuit of ZN1034E long delay control integrated circuit

Published:2011/4/2 2:51:00 Author:Nicole | Keyword: control integrated circuit

Typical application circuit of ZN1034E long delay control integrated circuit
The RT in figure can be chosen between 5kΩ～5MΩ. Considering operate easily and linearity, it is better to choose 250kΩ～1MΩ. The preferred value of CT is over 0.01pF, and the minimum value should not lower than 3 900pF according to the manufacturer's recommendations. (View)

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Typical application circuit of U2403B constant source charging timer

Published:2011/4/2 2:55:00 Author:Nicole | Keyword: constant source, charging timer

Typical application circuit of U2403B constant source charging timer
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Typical application circuit of U2402B intelligent battery fast charge control chip

Published:2011/4/2 2:57:00 Author:Nicole | Keyword: intelligent battery, control chip

Typical application circuit of U2402B intelligent battery fast charge control chip
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Long pulse timer circuit

Published:2011/4/2 3:17:00 Author:Nicole | Keyword: timer

Long pulse timer circuit
This timer circuit can provide 20min counting time delay. It is a normal decline oscillator with FET current source. Resistance R1 provides reverse migration to the door of JFET transform into power supply. It colses JFET and delays the charging time of C1. C1 is a low drain capacitance similar to polyester resin. (View)

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LTC732 pins arrangement diagram

Published:2011/4/6 2:38:00 Author:Nicole | Keyword: pin arrangement

LTC732 pins arrangement diagram

LTC732 is a lithium ion battery constant current/ constant voltage linear charge controller, it is produced by Linear Technology company. It also can constant current charge to nicad and Ni-MH battery, the pins arrangement diagram is shown as below: The internal structure is shown as below: (View)