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Use USB to provide 3.3V power

B

Boki

Jan 1, 1970
0
Hi All,

I have a power source - USB from PC.

My embedded device is battery powerd, I want to remove this battery,
and use PC USB's power.

But it seems that USB is 5V -5V device, am I right?

Should I buy a LDO or ?

Best regards,
Boki.
 
G

Genome

Jan 1, 1970
0
Boki said:
Hi All,

I have a power source - USB from PC.

My embedded device is battery powerd, I want to remove this battery,
and use PC USB's power.

But it seems that USB is 5V -5V device, am I right?

Should I buy a LDO or ?

Best regards,
Boki.

Well, you might start out by asking your service provider to stop its
customers trying to use my computer as an e-mail relay.

SCUM

DNA
 
A

AZ Nomad

Jan 1, 1970
0
Well, you might start out by asking your service provider to stop its
customers trying to use my computer as an e-mail relay.

Agree. I killfile everything from hinet as they cater to spammers.
The OP should switch providers if getting an answer matters.
 
D

Deefoo

Jan 1, 1970
0
Boki said:
Hi All,

I have a power source - USB from PC.

My embedded device is battery powerd, I want to remove this battery,
and use PC USB's power.

But it seems that USB is 5V -5V device, am I right?

Should I buy a LDO or ?

Best regards,
Boki.

Take a look at the MAX8881. There is a USB example with it in the datasheet
of the DS2490.

--DF
 
B

Boki

Jan 1, 1970
0
Deefoo 寫�:
Take a look at the MAX8881. There is a USB example with it in the datasheet
of the DS2490.

--DF

Thank you very much!

Best regards,
Boki.
 
P

Pooh Bear

Jan 1, 1970
0
Genome said:
Well, you might start out by asking your service provider to stop its
customers trying to use my computer as an e-mail relay.

SCUM

Hinet is surely a piece of crap.

Graham
 
T

The Real Andy

Jan 1, 1970
0
Well, you might start out by asking your service provider to stop its
customers trying to use my computer as an e-mail relay.

I asked to join the linux team just recently, becuase I finished my
project ahead of them 2 months ahead. But i used a USHORT when i could
have used an unsigned char. Sigh, i wish my disk drive was faster....
 
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