JOHN A CARVALHO
Plumbers in Arlington, MA
License number
Massachusetts 37171
Issued Date
Sep 19, 2014
Expiration Date
May 1, 2018
Type
Apprentice Plumber
Address
Address
Arlington, MA 02474
Professional information
Multiple Input Voltage Power Controller
US Patent:
4540892, Sep 10, 1985
Filed:
Dec 20, 1983
Appl. No.:
6/563608
Inventors:
John A. Carvalho - Arlington MA
Assignee:
RCA Corporation - Princeton NJ
International Classification:
H02M 110
US Classification:
307130
Abstract:
A power controller determines which of a plurality of possible input voltages is present and configures a load to operate at that present input voltage.