Help me design a power supply that gives 400mA during 1 ms

Status
Not open for further replies.
W

WinterInJuly

Member level 4
Joined
Jun 3, 2005
Messages
68
Helped
3
Reputation
6
Reaction score
1
Trophy points
1,288
Activity points
1,822
Hi all
I want to design a circuit which is used to supply current about ~400mA during a very short time (1ms) from battery 6V or 9V. As I know, it required a capactior to discharge when I need supply current but i don't know how to design. Please help me.
Thanks and best regards
 

Re: PowerSupply

You can use 555 timer in monostabile configuration to generate 1ms impulse. This impulse (reversed) can control P-Channel power mosfet or PNP BJT transistor.
If you sue battery as the supply source you don't need additional capacitor; battery easily should be able to deliver 400mA over 1ms..
Regards,
IanP
 

Re: PowerSupply

Thank you very much
Regards
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…