--=====================_996850136==_ Content-Type: text/plain; charset="us-ascii" Hello all, once again, I'm attempting to make a PSU based off the attached schematic. The problem I'm having is the MOSFET wont turn off. Its allways 'on'. As soon as +12 is applied the circuit comes alive, regardless of the state of its Gate. Pull it high or low and its still on. The MOSFET I'm using is a MTP2P50E, its made by Motorolla and its datasheet can be found on www.onsemi.com, just search for that PN. Anyway if anyone has any suggjestions, lemmy know. Thanks in advance, Tim Thompson --=====================_996850136==_ Content-Type: image/gif; name="pushbutton_power2.gif"; x-mac-type="47494666"; x-mac-creator="4A565752" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="pushbutton_power2.gif" R0lGODlhQAHIAIAAAP///wAAACH5BAEAAAAALAAAAABAAcgAAAL+hI+py+0Po5y02ouz3rz7D4bi SJbmiabqyrbuC8fyTNf2jef6zvf+DwwKh8Si8Yj0BZbLBVPBbEKlyar1CggctAhuFrpNeL3YsvlH HovXYQP5e47Lb2/t27m+n/Tzvh8exteV9yAV5ZZl17TIFfWU6Eb1N5lUB9hgKWiYBvnVCGfXBnpJ WWrEidhFhUr6KerZpniolvgkaIrbQyt6t5sKOLYKHNkaaJmLDOToJBn5KNb8bMsY6nyY6ticvM3d 7f0NHi4+Tl5ufo6err7O3u6Okx0vP09fb3///K4/cXvUvw/wFZZ/AWMQ3HFwSMKCLPIpjLOwYEQM y4pMRMNQgsP+DPg6evwIUtLFHCMprtqkykpFDdq2XCNSkkdMlxrZ/LrZMKTOllNubQwyc0YvjS1d FRqEVOCKoNY0RVjkgOkLVjZmKapFFdPLmwR9FZv64adSMNUYSHWB6qrBQa567czXlevJsxXo9jv4 j25DpIbWBsIGBsLKWPxAfeoLNuzRp4KRpB2rQljbS3h58jQ7CpHXpSDu1lx8ii/kpXON4ozamdew xB48MwZt0aVVvXsKK5ZN7bIJu7BR9354JiFtXal9N/4tZLgMvLl4G0duM3bw12VWPnKO6fNzmBCP w9QjLCl2zNSz++seVXnt6JSTdnDt3Xzo6YLVk3BrM+sGPm/+5Us3I5x9IfAnmnscCGggcADWheB7 /pV1GkucnUcfUck9+FVrE863oHZA+UdKiBIWck953FWY3ndGaTPUbXVd0OAIMW6o1UC2aWjBRTMO iF59uIx3IwU7FtehhZQA6WGQJxbJz5BoESkkjI71+JSTrDmYo5QUMpmiKUiamKSCnaGkSjY4dglR SFq+mOWWrdESzS9MdWVldWtG6SaWgD02mpJo6qPjnUvqyQac7LXZ5D6BIvofoeIBliCbkraz6KSD Hlhme6aJiGeictCDKaN+XugipDS1t1+ngAoaJqlhGVpon6OSB1Clql76ZiNxDjYimO7YOqsyVELH DrCtfoj+IrGOqSnqscoqMex27xjrK1BvXYvtPMGuQ2186tSJR0DdPjsOuIHVymq15ph7aHDaptqs uuWwG2kfX3rr7Lx0/AjltiCmQ6+sycJrab7kBByhvf0aTOs57/pVyr3khgtwuy3oJZZQC8v777oC p0CbWvuW6m/DFSMccsIQO8owxdyOXBzCH5fsMs0ZyShCWVZBQmbGFG2ML8c335dzZpodPcpwEksr 9NBF8/hKKFAtozTQE5/rdGRPE4NNNce8J0+oBTedNckHRhNeMLz2qvKtLWNd9nqTbPZzvEHHjXOV VUBIsNtk4923eTKnyxHhVwPOdsODLwdjto4/Dnnkkk/+Xm8yMy5O6Ws+6cYgcVojvpuRtJ6F+cws g271rVKV3jbUqOedeMuscwr7664X3tNhssiCVeuMf2777XW7p5bOXNFOw+XBb504J2rAijRCNC5/ +prSDCM117DIND31gbM0Vy3i8+6M+NID773Yinaf/vDro98+7ujCH7/hL9Nf/9iZ45+/zR7z37+/ 6QuAATzcAEFWQPt9i30JNODBGNjAju0PgRH03wFRMLuKiQuCFYTbtDjYwcrdj4IhdGC5QFhC5C2Q gClUoQZJ2MKafZCFKcwgtGhYQht6DoYxtFix3Pe2DuqQewqUYQ99h46RTGSIF1xVET14RBcmEYgC jCD+E3WgRLv18IokoeLdtigRL5owgVyER5VKxLQjlhFmGIwiFCeovzSCUVwdYQ8+3OhD0K1xg+nb 4/y858f34XGQgRzkNgqZJ0P67XWI/FWuytTI1ClSjllK2wknqcU2QQ8ckfwhjjb5jU6OEFNp8Bky RLlCB7EClU1CIyYlOIXf0O2VxeKc0WQ4S1oCbCtY449IeDmQOqZncsQspjGPeS0RNkeXuwFmrMTB yriZUnvhiCYz7XRNJVhzjNn83DZh2U2NSXFg4azKj8JWTjb25STUdBUS07mXpB2GMP/5ZgCfNwvC rO1D9izgPMWjqyv0k4xqm80mbAnPhCp0oQxtqENPHwrRiEp0ohStqEUvitGManSjHO2oRz8K0pCK dKQkLalJT4rSlKp0pSxtqUtfCtOYynSmNK2pTW+K05zqdKc87alPfwrUoAp1qEQtatYKAAA7 --=====================_996850136==_ Content-Type: text/plain; charset="us-ascii" - Remember, 'kill' doesn't kill processes, users kill processes. --=====================_996850136==_-- -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body