Touch sensor light control needed - Electronic Circuits Projects Diagrams Free

geemer · 26th July 2003, 08:15 PM

I'm looking for a way to construct a "touch control" circuit for 120v light fixtures that I am fabricating. The light would go on or off when the metal base is touched. There are commercially available ones that screw into the light fixture but these are too limited as well as expensive. I need the circuit plans to install one inside the fixture. Thanks for the help.

anand_jain · 4th May 2004, 07:28 AM

i just read the above post, and i am also need of ckt of more or less same kind, so is there anyone who can help me out.... i need a ckt which is capable of switching on the other ckt which operate on 230V ac and it should not go off untill and unless it is touched again.

thanx for helping a newbie

bmcculla · 4th May 2004, 05:49 PM

I know motorola makes an e-field sensor IC that can detect changes in capacitance of a sensor plate like you describe. When a person touches the plate the capacitance will change.

Brent

IRQ57 · 5th May 2004, 04:30 AM

Hello,

You need a 8 pin STK 58C308 ic to drive a BT136, this triac will connect a incandescent lamp in three steps of intensity and then goes off, just touching a metal contact.

It is very difficult to get a datasheet and application notes.I found this forum (in french) , where a person asks for the IC datasheet and is responded sending him a one sheet datasheet.

http://www.abcelectronique.com/archi...01_20701.phtml

I have some of this ic's in little black boxes with a few components to drive a lamp. They are from " Harrier Int'l Co.,Ltd."

I hope this information may help you.

Regards.

IRQ57 · 5th May 2004, 04:31 AM

Hello,

You need a 8 pin STK 58C308 ic to drive a BT136, this triac will connect a incandescent lamp in three steps of intensity and then goes off, just touching a metal contact.

It is very difficult to get a datasheet and application notes.I found this forum (in french) , where a person asks for the IC datasheet and is responded sending him a one sheet datasheet.

http://www.abcelectronique.com/archi...01_20701.phtml

I have some of this ic's in little black boxes with a few components to drive a lamp. They are from " Harrier Int'l Co.,Ltd."

I hope this information may help you.

Regards.

Sorry for the double message

anuradha · 5th May 2004, 05:40 PM

Hey buddy,
Just check this URL, and find out if the circuit will be of any use to you.

http://home.maine.rr.com/randylinscott/jul99.htm
with regards
anu.

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26th July 2003, 08:15 PM	(permalink)
geemer	Touch sensor light control needed I'm looking for a way to construct a "touch control" circuit for 120v light fixtures that I am fabricating. The light would go on or off when the metal base is touched. There are commercially available ones that screw into the light fixture but these are too limited as well as expensive. I need the circuit plans to install one inside the fixture. Thanks for the help.

4th May 2004, 07:28 AM	(permalink)
anand_jain	haello i just read the above post, and i am also need of ckt of more or less same kind, so is there anyone who can help me out.... i need a ckt which is capable of switching on the other ckt which operate on 230V ac and it should not go off untill and unless it is touched again. thanx for helping a newbie __________________ an electronic newbie, but too crazy to build robotS.....

4th May 2004, 05:49 PM	(permalink)
bmcculla	I know motorola makes an e-field sensor IC that can detect changes in capacitance of a sensor plate like you describe. When a person touches the plate the capacitance will change. Brent

5th May 2004, 04:30 AM	(permalink)
IRQ57	Touch sensor Hello, You need a 8 pin STK 58C308 ic to drive a BT136, this triac will connect a incandescent lamp in three steps of intensity and then goes off, just touching a metal contact. It is very difficult to get a datasheet and application notes.I found this forum (in french) , where a person asks for the IC datasheet and is responded sending him a one sheet datasheet. http://www.abcelectronique.com/archi...01_20701.phtml I have some of this ic's in little black boxes with a few components to drive a lamp. They are from " Harrier Int'l Co.,Ltd." I hope this information may help you. Regards.

5th May 2004, 04:31 AM	(permalink)
IRQ57	Touch sensor Hello, You need a 8 pin STK 58C308 ic to drive a BT136, this triac will connect a incandescent lamp in three steps of intensity and then goes off, just touching a metal contact. It is very difficult to get a datasheet and application notes.I found this forum (in french) , where a person asks for the IC datasheet and is responded sending him a one sheet datasheet. http://www.abcelectronique.com/archi...01_20701.phtml I have some of this ic's in little black boxes with a few components to drive a lamp. They are from " Harrier Int'l Co.,Ltd." I hope this information may help you. Regards. Sorry for the double message

5th May 2004, 05:40 PM	(permalink)
anuradha	Check this URL Hey buddy, Just check this URL, and find out if the circuit will be of any use to you. http://home.maine.rr.com/randylinscott/jul99.htm with regards anu. __________________ Anu Radha