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Is This circut right? Answered

I need to know if circut for a 9v usb charger is right. I didn't have the usb port at the time. Any help?

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lemonie
lemonie

10 years ago


USB is 5V - what does this do?

L

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Dread_Neck
Dread_Neck

Reply 10 years ago

There is a 5v regulator on it.

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lemonie
lemonie

Reply 10 years ago


A schematic / circuit diagram would help to answer the question.

L

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stefacc
stefacc

10 years ago

you must also specify the manufacturer
this is the Fairchild 7805 datasheet http://www.datasheetcatalog.org/datasheets/228/390068_DS.pdf
if you have this 7805 you must change pin 1 with pin 3

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stefacc
stefacc

10 years ago

mmm but what can you do? without fixed load the switch is useless
what is the name of regolator?
sorry for my bad english

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Dread_Neck
Dread_Neck

Reply 10 years ago

7805. What does fixed load mean?