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Recent content by rudypb

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    AT commands and hyperterminal

    hyperterminal ctrl-z Beside pressing "ctrl z" directly, try to press <ALT>26.
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    Problem with sending AT commands through 8051 (T68i and AT89S52)

    Re: T68i and AT89S52 Hi leunglhz, I could not find that you send the <CR><LF> in your program. I think you need to send <CR><LF> at the and of sending PDU command.
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    at commands for those in need (for gsm & gprs projects)

    Re: at commands for those in need (for gsm & gprs projec Is anybody has TCP/IP stack for siemens gprs modem using Keil C Compiler? Thank's
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    SMPS forward converter using used transformer

    smps forward The core dimension I have, when I measure is (in mm): A=40mm, B=16mm, C=12mm, D=12mm Thank you
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    Help me correct my failed Inverter design

    why do mosfet fail in inverter Hi aan_woodz, I think you need to place current sense to each source pin of the mos-fet, and feedback the voltage to the controller. When the controller sense the maximum current flow to the mos-fet, it should turn off the mos-fet. It will protect the mos-fet when...
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    SMPS forward converter using used transformer

    smps forward converter Thank you for your replay. The problem is how to calculate the inductance without knowing transformer core data. Most any books about smps design need to know the transformer core data to calculate the transformer inductance. Is it possible to find out the transformer...
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    SMPS forward converter using used transformer

    forward smps Is anybody knows about how to design the forward converter transformer using used smps transformer without knowing transformer data?. I have used 350 Watts ATX power supply, I need to redesign the transformer to output DC 5V 50A. Is it possible without knowing the transformer...

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