e13007 grounding issue

Discussion in 'The Projects Forum' started by techmadman, Nov 23, 2012.

  1. techmadman

    Thread Starter New Member

    Nov 23, 2012
    3
    0
    Hello everyone, im a newbie for playing with stuff but i have a question. i building a simple 9v dc to 5v dc converter for my cell phone. the voltage reading is fine across circuit but when i connect the ground for the e13007 chip to the common ground of the circuit the voltage is non existent but if i measure the output of the regulator and touch the common ground with my multimeter the voltage is correct. it seems that the voltage is read correctly only when i use the multimeter as part of the circuit. any ideas, please i would appreciate it.
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,093
    3,033
    What is an E13007 and what circuit do you have it in? My search suggested it is a power transistor and not a regulator.
     
  3. techmadman

    Thread Starter New Member

    Nov 23, 2012
    3
    0
    ya mine two i thought it was a 5v regulator, so the search for parts continues, thanks for your response.
     
  4. wayneh

    Expert

    Sep 9, 2010
    12,093
    3,033
    You might have toasted it by "grounding" it. Use a multimeter to check it.

    You might want to let folks here know what you're trying to do, if you want their help.
     
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