HELP: how to boast low current output to switch relay? - Electronic Circuits Projects Diagrams Free

BlurTech · 22nd July 2003, 08:53 AM

hi guys, need ur help.
i have a similiar problem here.

my comparator circuit can only produce output of 2.5V & 6mA. My relay require at least 2.2V (obtained already) and 1A in order to swtich over. is there any method which i can boast the output of the small output to almost 1A? hope its a simple method....

thanks!

Chippie · 22nd July 2003, 03:09 PM

Use a transistor to boost the output of your comparator and drive the relay that way.

look here's the answer,http://www.electro-tech-online.com/viewtopic.php?t=1076

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22nd July 2003, 08:53 AM	(permalink)
BlurTech	HELP: how to boast low current output to switch relay? hi guys, need ur help. i have a similiar problem here. my comparator circuit can only produce output of 2.5V & 6mA. My relay require at least 2.2V (obtained already) and 1A in order to swtich over. is there any method which i can boast the output of the small output to almost 1A? hope its a simple method.... thanks!

22nd July 2003, 03:09 PM	(permalink)
Chippie	Use a transistor to boost the output of your comparator and drive the relay that way. look here's the answer,http://www.electro-tech-online.com/viewtopic.php?t=1076