Control Circuit

Buick computer dataline diagram

Published:2011/4/7 3:27:00 Author:Jessie | Keyword: computer dataline

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Nokia 8110 mobile maintenance circuit diagram

Published:2011/4/7 3:23:00 Author:Jessie | Keyword: mobile maintenance

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Buick air conditioning fan circuit diagram

Published:2011/4/7 3:22:00 Author:Jessie | Keyword: air conditioning fan

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Drive circuit (voltage-type)

Published:2011/3/24 22:24:00 Author:muriel | Keyword: Drive circuit , voltage-type

(a)as shown the drive circuit suitable for low frequency miniwatt drive, when the control signal Ui is high level, VT1 breakover, output voltage Uo corresponding control switch tube (IGBT) is breakover; When the control signal Ui is low level, VT2 breakover, output voltage Uo corresponding control switch tube (IGBT) be turn off. (b) the drive circuit is shown by mosfet composition push-pull circuit, its working principle as figure (a) shows circuit. This circuit of high frequency peak value drive current can reach l0A above, it is suitable for high-power IGBT devices.   (View)

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Improved common base inductance feedback oscillation circuit diagram

Published:2011/4/7 3:00:00 Author:Jessie | Keyword: Improved common base, inductance feedback oscillation

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Improved capacitance feedback oscillating circuit diagram

Published:2011/4/7 3:03:00 Author:Jessie | Keyword: Improved capacitance, feedback oscillating

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Capacitance feedback oscillating circuit diagram

Published:2011/4/7 2:53:00 Author:Jessie | Keyword: Capacitance feedback oscillating

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Buick power window circuit

Published:2011/4/7 2:51:00 Author:Jessie | Keyword: power window

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Inductance feedback oscillation circuit diagram

Published:2011/4/7 2:49:00 Author:Jessie | Keyword: Inductance feedback oscillation

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Buick sunroof circuit diagram

Published:2011/4/7 2:42:00 Author:Jessie | Keyword: sunroof

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Common base transformer feedback oscillation circuit diagram

Published:2011/4/7 2:23:00 Author:Jessie | Keyword: Common base transformer, feedback oscillation

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Buick baggage closing circuit

Published:2011/4/7 2:17:00 Author:Jessie | Keyword: baggage closing

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Transformer feedback oscillation circuit diagram

Published:2011/4/7 2:13:00 Author:Jessie | Keyword: Transformer feedback oscillation

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Buick shift interlocking circuit diagram

Published:2011/4/7 1:58:00 Author:Jessie | Keyword: shift interlocking

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Intelligent alarm system audio circuit diagram

Published:2011/3/31 22:31:00 Author:Rebekka | Keyword: Intelligent alarm system, audio circuit

The alarm system will shows the floor and the room number of the steal and uses sound-light alarm. The block diagram of the system is shown in figure A. The sensor of the system uses Pyroelectric infrared control module. The power supply uses AC and DC automatically converted power supply. The audio alarm circuit of the system is shown in figure C. It is specially designed for the system. The Address matrix control circuit shown in figure A uses 2 manual button data transmission integrated circuits C306(shown in figure B). It has 11~19 input terminals and 4 output terminals, A, B, C, D. Usually, connecting 11~19 input terminals to ground potential through resistance. The output terminals ABCD are 0000 . When a steal happens, one input terminal will be at a high potential. If the terminal 13 is at a high potential, the output BCD code is 0011 . The decimal number is 3 . The matrix display(shown the floor and room number) panel is composed of 2 C403 and routing matrix. Figure C is an audio alarm circuit. It is composed of a C403 A, B, C output terminals. When a steal happens, one of the 11~14 output terminals will turn to a high potencial. One of the A, B, C terminals will turn to a high potencial. The gate circuit will enable VT1 saturate and turn on. The negative pulse transition of integrated electrodes will make monostable trigger circuit IC3 turn to a high potencial output. It will offer a working circuit for IC4.   (View)

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Transistor current control circuit diagram

Published:2011/3/31 22:52:00 Author:Rebekka | Keyword: Transistor current control

Transistor current control circuit diagram is shown as below.   (View)

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DC voltage regulation circuit diagram

Published:2011/4/1 0:53:00 Author:Rebekka | Keyword: DC voltage regulation

DC voltage regulation circuit diagram is shown as below.   (View)

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Using black and white TV as display terminal interface circuit diagram

Published:2011/4/1 2:51:00 Author:Rebekka | Keyword: display terminal interface

The interface circuit is added between computer standard video signal output terminal and TV. It can enlarge standard 1V(Peak - peak) video signal am to 3V(Peak - peak). Negative feedback circuit is composed of T1 and T2. It has a wide frequency range. The enlarge time is decided by the ratio of R1 and R2.   (View)

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Variable speed pick machine circuit diagram

Published:2011/4/1 1:03:00 Author:Rebekka | Keyword: Variable speed pick machine

Variable speed pick machine circuit diagram is shown as below.   (View)

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Uncontrollable dual voltage circuit diagram

Published:2011/4/1 1:01:00 Author:Rebekka | Keyword: Uncontrollable dual voltage

Uncontrollable dual voltage circuit diagram is shown as below.   (View)

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