Published:2012/12/14 20:41:00 Author:muriel | Keyword: 129 KHz , LWBC, high pass, filter
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Published:2012/12/14 20:41:00 Author:muriel | Keyword: Long Wave, Broadcast , Radio Filter
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Published:2012/12/14 20:40:00 Author:muriel | Keyword: NDB, High Pass, Filter
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Published:2012/12/14 20:38:00 Author:muriel | Keyword: 440Hz, peaked , low pass , headphone amplifier
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Published:2012/12/14 20:37:00 Author:muriel | Keyword: tunnable, RC , active , peaked , low pass, filter
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Published:2012/12/14 0:29:00 Author:Ecco | Keyword: Digital alarm clock
U1 is the 3817 integrated circuit. It has the ability to drive the display directly, and it can display 12h or 24h, schedule alarm sounds, timely and automatically turn on the radio. Display is FND500 light-emitting diode, the input frequency is 50H or 60Hz. U2 is the 7800 series regulator, its rated power can meet the requirements of the radio. Users can select radio playing time length ( the maximum is 59 min), then Q3 will output a low level to automatically turn off the radio.
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Published:2012/12/14 0:35:00 Author:Ecco | Keyword: Democratic current control
UC3907 load share controller integrated circuit chip produced by Unitrode uses democracy flowing method and the output voltage of adjustment power supply module to realize load share between parallel modules. UC3907 can determine the maximum output current according to module current monitor, load share bus voltage, then it specifies its main module, while the remaining modules are considered to be slave modules.
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Published:2012/12/14 0:24:00 Author:Ecco | Keyword: Isolated switching, power supply
Isolated switching power supply circuit diagram is shown as the figure.
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Published:2012/12/14 0:25:00 Author:Ecco | Keyword: DEUTZ , high pressure, common rail, engine wiring
DEUTZ high pressure common rail engine wiring diagram is shown as the figure.
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Published:2012/12/14 0:23:00 Author:Ecco | Keyword: one-way buffer, replacing diode
This can reduce the impact on the current precision of of the main module from diode forward voltage drop. The circulation between the main module and other modules is reduced to 2.5% or less.
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Published:2012/12/13 21:51:00 Author:muriel | Keyword: Improved , NDB Chebyshev, Low Pass , Filter
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Published:2012/12/13 21:50:00 Author:muriel | Keyword: 533KHz, low pass, filter
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Published:2012/12/13 21:47:00 Author:muriel | Keyword: Single Varactor, Tuned , Front-end , Filter
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Published:2012/12/13 21:46:00 Author:muriel | Keyword: Varactor , Tuned, Front-end Filter
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Published:2012/12/13 21:46:00 Author:muriel | Keyword: final , band pass filter
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Published:2012/12/13 21:45:00 Author:muriel | Keyword: Cascode , BJT, RF Amplifier
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Published:2012/12/13 21:44:00 Author:muriel | Keyword: Cascode, BJT , RF Amplifier, High Performance, Detector
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Published:2012/12/13 21:43:00 Author:muriel | Keyword: Audio Stage
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Published:2012/12/13 21:42:00 Author:muriel | Keyword: Medium Frequency , TRF Receiver
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Published:2012/12/13 21:41:00 Author:muriel | Keyword: original network
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