Solid State Relay?
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Posts: 46,084
I frequently control small dc motors of 12 volts or less and 240 mils
or less with a stamp. I do so by first controlling a transistor that
controls a relay that rurns the motor on or off. There must be a
quieter, simpler way to do this. I don't know beans about solid state
relays. Would one of them be the way to go?
or less with a stamp. I do so by first controlling a transistor that
controls a relay that rurns the motor on or off. There must be a
quieter, simpler way to do this. I don't know beans about solid state
relays. Would one of them be the way to go?
Comments
You might consider using a motor driver chip, such as SGS-Thomson L293B
(without diodes) or L293D (with diodes), instead of a relay. They
include a chip enable pin that turns motor current on/off. But if you'd
rather stick to relays, I've used a SIP relay (Digikey Z533-ND) for this
purpose.
Dennis
Original Message
From: Wally [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=0qXvC0CehkJAECvD_V5m4bjuT-UKCGxPoAOLz91ZAEQOycN4NCxFOLgMA90Y7nHTn-OF2vdiAV3UVaihGjo]dogiewal@n...[/url
Sent: Tuesday, March 11, 2003 12:38 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Solid State Relay?
I frequently control small dc motors of 12 volts or less and 240 mils
or less with a stamp. I do so by first controlling a transistor that
controls a relay that rurns the motor on or off. There must be a
quieter, simpler way to do this. I don't know beans about solid state
relays. Would one of them be the way to go?
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You can switch the voltage to the motor using a transistor. The solid state
relay is essentially a transistor switch in a package. These relays are
very reliable but add considerable cost to your project. An example of
using transistors is shown on my web site:
http://geocities.com/jimforkin2003/index.html
jim
Original Message
From: Wally [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=vTZdEjUgw9rMNlmn9NxeGaZZ5P0B-gzIwFMGElh4sXX4J2oQY3zb32kDBcXS1TaY1Kuy9GgaV-HTRWQdU1U]dogiewal@n...[/url
Sent: Tuesday, March 11, 2003 3:38 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Solid State Relay?
I frequently control small dc motors of 12 volts or less and 240 mils
or less with a stamp. I do so by first controlling a transistor that
controls a relay that rurns the motor on or off. There must be a
quieter, simpler way to do this. I don't know beans about solid state
relays. Would one of them be the way to go?
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/