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Recent content by movingbait

  1. M

    cheapest: 5V DC to 5V DC isolated power supply, 200mA?

    You didnt specify isolation voltage; but maybe have a look at https://focus.ti.com/docs/prod/folders/print/dcp010505b.html https://focus.ti.com/docs/prod/folders/print/dch010505s.html or www.discovercircuits.com
  2. M

    Can the SRAM of LPC213x be battery backed?

    you can use the fact that there is a diode on each pin, so power the device via a resistor; conduction will begin when pin voltage is higher than that of supply you need to seperate micro from supply incase it does not have protection diode and not try to power the whole power rail with the...
  3. M

    is it possible to boost 1V to 5V?

    boost from 1 v to 5 v JFET-based dc/dc converter operates from 300-mV supply **broken link removed**
  4. M

    Help me with a project on MSP430 as a controller

    Re: need help on MSP430 Both are good links should be usefull https://groups.yahoo.com/group/msp430/ and TI code snips https://focus.ti.com/mcu/docs/techdocs.tsp?familyId=342&navSection=app_notes&templateId=5246
  5. M

    Project to replace CY7C64613 in the ICD2

    mc34064a 50v ICD2 new firmware posted **broken link removed**
  6. M

    How to connect PIC16F877A micro to a LAN?

    enc28j60 pic16f877 Directly you cannot; you need an interface; by using a RTL or other interface chip a non pic (LPC2124 ARM7TDMI-S) example is https://microcontrollershop.com/product_info.php?cPath=98&products_id=943 look on google; i am sure i have seen someone try/do it.
  7. M

    Project to replace CY7C64613 in the ICD2

    interrupt transfer example ezusb fx No special components boost regulator https://www.aaroncake.net/circuits/6-12conv.htm
  8. M

    Extremely low quiescent current LDO

    LDO from maxim, FET based Make the wheel square only when no one made it before. **broken link removed** MovingBait.Ü
  9. M

    110 Vac to binary 1 and 0

    you can use a transformer to step down to 5V use a diode to rectify and a capacitor. when the pic measures the capacitor voltage, when it detects 5V 100VaC is on line
  10. M

    temperature measurement up to 1000C

    MAX6675 Cold-Junction-Compensated K-Thermocouple-to-Digital Converter (0°C to +1024°C) MovingBait.Ü
  11. M

    frequency modulator at ~ 150khz for speaker

    frequency modulator design Using FM I do forsee issues. But using AM ? (Please explain what issues you mean?)
  12. M

    frequency modulator at ~ 150khz for speaker

    ultrasound+modulator Dear People, I am looking for a frequency modulation circuit that operates roughly in the 150kHz range. modulates audio. It need a means of providing an output of the 150kHz frequency before being modulated. so things like on the fly LC oscilation may not work. I am...
  13. M

    Need help to solve analog circuit overshoot problem.

    You can use a relay OR just a fet by itself, like a jfet which is symetrical. movingbait. Ü
  14. M

    at91rm9200 blink led start MCU

    winpic800 language From following this post i gather there is an old version of firmware which is FREE a new version of firmware which cost 6 or 7 Hardware wise both are the same. Does anyone have the old firmware and what it support? Granted this is smaller than usb version of icd2; but no...
  15. M

    Looking for schematic for ICD2

    reg103 schematic If you have a real ICD2 it uses a different channel to talk USB; The serial version is slower Regards, MovingBait Ü

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