• on Miscellaneous Electronics
  • Published in issue 7/2005 on page 0
About the article

Navigator Assistant


These days it is quite common that a hand-held computer (PDA) is used in a car as a navigation system. The author uses, for example, a Dell Axim X5 with TomTom navigator. The PDA is installed in a holder in such a way that the screen is clearly visible to the driver. Such holders do not normally have power and audio connections for the PDA. This circuit offers a solution to both problems: a regulated power supply and an audio power amplifier.
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