MR. CHRISTOPHER HAROLD SMITH, LPC, LMFT
Social Work at Ashton Ave, Manassas, VA
License number
Virginia 0701002449
Category
Social Work
Type
Professional
Address
Address
7969 Ashton Ave, Manassas, VA 20109
Phone
(703) 792-7800
(703) 792-5699 (Fax)
(703) 792-5699 (Fax)
Professional information
Christopher Smith - Manassas, VA
Work:
George Mason University
Telecommunications Technician Convention Center - Washington, DC
Switch room Technician Level 2 Technician Colonial Pharmacy - Mechanicsville, VA
Pharmacy Technician Nissan Pavilion - Richmond, VA
Assistant to Director of Operations Lawn Ranger, Inc - Mechanicsville, VA
Lawn Care Technician
Telecommunications Technician Convention Center - Washington, DC
Switch room Technician Level 2 Technician Colonial Pharmacy - Mechanicsville, VA
Pharmacy Technician Nissan Pavilion - Richmond, VA
Assistant to Director of Operations Lawn Ranger, Inc - Mechanicsville, VA
Lawn Care Technician
Education:
ECPI Technical College - Glen Allen, VA
Associates of Applied Science in Computer Network Technology
Associates of Applied Science in Computer Network Technology
Christopher Smith - Manassas, VA
Work:
Domino's Pizza
Driver Lowes - Bristow, VA
Customer Service Trophy Shop - Manassas, VA
Inventory/Data Entry Aramark - Bristow, VA
Warehouse Helper/Stocking
Driver Lowes - Bristow, VA
Customer Service Trophy Shop - Manassas, VA
Inventory/Data Entry Aramark - Bristow, VA
Warehouse Helper/Stocking
Education:
Stonewall Jackson High School - Manassas, VA
Word processing / Excel
Word processing / Excel
Christopher Smith - Manassas, VA
Work:
Buffalo Wild Wings Restaurant - Dulles, VA
Manager Logan's Roadhouse - Grand Rapids, MI
Manager Lone Star Steakhouse and Saloon - Grand Rapids, MI
Manager Mountain Jacks Restaurant - Grand Rapids, MI
Manager
Manager Logan's Roadhouse - Grand Rapids, MI
Manager Lone Star Steakhouse and Saloon - Grand Rapids, MI
Manager Mountain Jacks Restaurant - Grand Rapids, MI
Manager
Education:
Kalamazoo Valley Community College - Kalamazoo, MI
Management and Chef Training Academy Grand Rapids Junior College - Grand Rapids, MI
Management and Chef Training Academy Grand Rapids Junior College - Grand Rapids, MI
Christopher H Smith, Manassas VA - LPC (Licensed professional counselor)
Specialties:
Counseling
Address:
7969 Ashton Ave, Manassas 20109
(703) 792-7800 (Phone), (703) 792-5699 (Fax)
(703) 792-7800 (Phone), (703) 792-5699 (Fax)
Languages:
English
Self-Powered Scr Gate Drive Circuit With Optical Isolation
US Patent:
5028825, Jul 2, 1991
Filed:
Oct 18, 1989
Appl. No.:
7/423090
Inventors:
Christopher A. Smith - Manassas VA
George K. Woodworth - Gainesville VA
George K. Woodworth - Gainesville VA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H03K 1772
US Classification:
307643
Abstract:
The improved gate drive circuit provides a continuous gate current whenever there is sufficient anode-to-cathode voltage difference across the SCR. This approach described herein eliminates the need to monitor and reapply SCR gate current after each commutation due to load current distortions. Previous SCR gate driver designs used a pulse train of gate currents to provide a means of keeping the SCRs turned on. The pulsed gate control approach has gaps in the SCR's operation and requires significant circuitry that dissipates much more drive energy. Energy for this improved driver circuit is derived from the SCR anode-to-cathode voltage differential. This eliminates the need for individual power supplies to provide isolated gate signals for each SCR. This self-powering feature reduces the intricacy of controlling multiple SCRs in multi-phase or unreferenced power systems. Flexibility provided by this method allows high power SCRs to be directly interfaced to a digital processor-type controller.