Published:2011/3/21 22:48:00 Author:Rebekka | Keyword: Soft start, fixed voltage power supply
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Published:2011/3/24 0:57:00 Author:Ecco | Keyword: Crystal triode
Crystal triode IMH1A、IMH2A、IMH9A inside circuit diagram is as below:
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Published:2011/3/20 22:56:00 Author:Ecco | Keyword: Internal resistance, power source
Internal resistance of power source measuring and test circuit diagram is as below:
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Published:2011/3/20 22:56:00 Author:Ecco | Keyword: Relay measurment
Relay measurment circuit diagram is as below:
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Published:2011/3/20 22:56:00 Author:Ecco | Keyword: Crystal triode
Crystal triode IMH5A、IMH6A inside circuit diagram is as below:
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Published:2011/3/20 22:56:00 Author:Ecco | Keyword: Intelligent pressure measurement and control
Intelligent pressure measurement and control circuit diagram is as below:
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Published:2011/3/29 3:26:00 Author:Ecco | Keyword: three terminal regulator, Switching regulator supply
As shown in chart, the switching regulator supply circuit is made from three terminal regulator, and the working principle can be understood by the equivalent circuit diagram. For some reason, the output voltage V0 declined slightly, its separate pressure V3 in R5 and R6 fall subsequently, and magnified by VT3, the Ic3 decreases, and Ic2 increases, namely the current flowed through R1 and VD1 increases, V1 drops, V4, Ic1 increase, V2 rises, and cause V3 down... This process is a positive feedback chain reaction, and the last result is that VT1, VT2 are conducted strongly, VT3 stops working, IC1 charges for L1, C1, and Vo rises, then causes a series of positive feedback chain reaction. After a short time, Vo's rising results in the conduction of VT3, the deadline of VT1, VT2. The current stored on L1 released by load and diode VD2, which resulting in V4 dropping to 0. Of course Vo also slowly down until the second flip, namely completes self-excited oscillation of a cycle. The whole circuit works in the cycle of switching state.
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Published:2011/3/20 22:56:00 Author:Ecco | Keyword: Venturi Filter
Venturi Filter circuit diagram is as below:
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Published:2011/3/23 4:46:00 Author:Nicole | Keyword: LED digital tube, display drive
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Published:2011/3/24 4:43:00 Author:Nicole | Keyword: Cadillac, electric rearview mirror
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Published:2011/3/21 1:47:00 Author:Rebrecca | Keyword: Sine Inverter
Efficient Sine Inverter Circuit Diagram is shown as below.
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Published:2011/3/20 22:56:00 Author:Ecco | Keyword: Fahrenheit scale
Fahrenheit scale circuit diagram is as below:
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Published:2011/3/20 22:56:00 Author:Ecco | Keyword: preamplifier
ne5532 preamplifier circuit diagram is as below:
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Published:2011/3/20 22:54:00 Author:Ecco | Keyword: Low noise amplifier
ne5532 Low noise amplifier circuit diagram 2 is below:
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Published:2011/3/20 22:54:00 Author:Ecco | Keyword: Alarm, control keyboard
Alarm control keyboard circuit diagram is as below:
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Published:2011/3/20 22:54:00 Author:Ecco | Keyword: Low noise amplifier
ne5532 Low noise amplifier circuit diagram 1is as below:
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Published:2011/3/28 4:18:00 Author:Nicole | Keyword: Step-down
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Published:2011/3/20 22:54:00 Author:Ecco | Keyword: 6B59 Drive, LED display
6B59 Drive LED display circuit diagram is as below:
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Published:2011/3/28 3:57:00 Author:Nicole | Keyword: Resonator grid
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Published:2011/3/28 4:03:00 Author:Nicole | Keyword: electronic rectifier
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