Searching \ for '[PIC]: Solid State Relay -- >' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/ios.htm?key=relay
Search entire site for: 'Solid State Relay -- >'.

Exact match. Not showing close matches.
PICList Thread
'[PIC]: Solid State Relay -- >'
2001\05\17@122531 by Raymond Choat

flavicon
face
Could anyone suggest a solid state relay that would hook to a pic for
controlling a 5 am induction motor? Would an opto22 work or ??? How would
you hook the diodes for flyback protection when the power is turned off? I
understand how to do this on a DC circuit but not AC.
Thanks in advance

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads


2001\05\17@133244 by Michael C. Reid

flavicon
face
go to http://www.crydom.com

they are a leading manufacturer of solid state relays, and have many
different versions.

{Original Message removed}

2001\05\17@220811 by Thomas M. Grohman

flavicon
face
You might consider one of the zero crossover SSRs.  If your motor
application can tolerate the < 1/2 cycle delay, switching the motor off
while voltage is zero eliminates some of the transient current issues.
Crydom has both random and zero crossover types within your specified
current ratings.  Digikey distributes a wide selection of Crydom SSRs.
Tom
{Original Message removed}

2001\05\18@140745 by Peter L. Peres

picon face
You can buy one from Jameco or better try a local distributor. Buy one
that has a datasheet (!) and in the datasheet you will probably find the
required damping network for a 5A motor.

You need to be aware that 5A AC motors draw 20+A at start so NTCs and
small resistors (1-5ohms) are sometimes used to temper them besides the
usual RC damper networks. You do not use diode networks in AC for damping,
but antiseries high power tranzorbs can be used sometimes.

Peter

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


More... (looser matching)
- Last day of these posts
- In 2001 , 2002 only
- Today
- New search...