Input line voltage compensating transformer power regulator

Claim 1

A transformer power regulator for efficiently and variably supplying at least 50 watts of power to a load from an A.C. voltage source while simultaneously compensating for variations from a nominal potential supplied by the voltage source, said regulator comprising: a laminated core structure defining a primary winding leg portion, a secondary winding leg portion, and a pair of control winding leg portions, all of said leg portions being in coplanar relationship; said control winding leg portions being intermediate to said primary and said secondary winding leg portions for effectively shunting flux induced in said primary winding leg portion away from said secondary winding leg portion; said core structure further including back portions between said primary and secondary winding leg portions thereby defining a main magnetic flux circuit that is of closed circuit configuration and is continuous and uninterrupted between said primary and secondary leg portions; said core structure also including bridge portions between said control winding leg portions thereby defining a control magnetic flux circuit that is of closed circuit configuration and is continuous and uninterrupted between said control winding leg portions with said control magnetic flux circuit being separate from said main magnetic flux circuit; a control winding on each of said control winding leg portions, said control windings being electrically connected in bucking relation for application thereto of equal ampere turns for energizing same between deenergized and fully energized conditions to correspondingly vary the reluctance of said control winding leg portions between minimum and maximum conditions such that said control winding leg portions variably shunt flux from said primary winding leg portion of the main magnetic flux circuit away from said secondary winding leg portion in inverse proportion to reluctance of said control winding leg portions; a primary winding with a plurality of turns wound about said primary winding leg portion including first and second leads for connecting same to the A.C. voltage source; a bucking winding with a plurality of turns, but with fewer turns than said primary winding, wound about said primary winding leg portion with a first lead of same connected to one of the leads of the primary winding such that said bucking winding is phased in bucking relationship to said primary winding; and a secondary winding with a plurality of turns wound about said secondary winding leg portion with a first lead connectible to a load to which power is to be supplied, and a second lead of same connected to a second lead of the bucking winding such that said secondary winding is phased in aiding relationship with respect to said primary winding whereby most of power is transmitted from the A.C. voltage source directly through the bucking and secondary windings of the transformer regulator to the load with the bucking winding dropping a portion of the input voltage thereacross to compensate for the maximum expected over-voltage conditions of the A.C. voltage source and the secondary winding supplying an additional voltage variable by the degree of energization of said control windings to supply a regulated voltage to the load independent of deviations in the A.C. voltage source from the nominal value thereof.

Claim 9

A method for efficiently and variably supplying at least 50 watts of power to a load from an A.C. voltage source while simultaneously compensating for variation from the nominal potential supplied by the voltage source, said method comprising: utilizing a laminated core structure defining a primary winding leg portion, a secondary winding leg portion and a pair of control winding leg portions, all of said leg portions being in coplanar relationship, said control winding leg portions being intermediate to said primary and secondary winding leg portions for effectively shunting flux induced in said primary winding leg portion away from said secondary winding leg portion, said core structure including back portions between said primary and secondary winding leg portions thereby defining a main magnetic flux circuit that is of closed circuit configuration and is continuous and uninterrupted between said primary and secondary winding leg portions, said structure also including bridging portions between said control leg portions defining a control magnetic flux circuit that is of closed circuit configuration and is continuous and uninterrupted between said control winding leg portions and is separate from said main magnetic flux circuit; providing a control winding on each of said control winding leg portions, said control windings being electrically connected in bucking relation for application thereto of equal ampere turns for energizing same between deenergized and fully energized conditions to correspondingly vary magnetic reluctance of said control winding leg portions between minimum and maximum conditions such that said control winding leg portions variably shunt flux from said primary winding leg portion of main magnetic flux circuit away from said secondary winding leg portion in inverse proportion to the reluctance of said control winding leg portions; providing a primary winding with a plurality of turns wound about said primary winding leg portion including first and second leads for connecting same to the A.C. voltage source; providing a bucking winding with a plurality of turns, but with fewer turns than said primary winding, wound about said primary winding leg portion with a first lead of same referenced to said A.C. voltage source, said bucking winding phased in bucking relationship to said primary winding; and providing a secondary winding with a plurality of turns wound about said secondary winding leg portion with a first lead connectible to a load to which power is to be supplied, and a second lead with same connected to a second lead of the bucking winding such that said secondary winding is phased in aiding relationship with respect to said primary winding such that most of the power is transmitted from the A.C. voltage source directly through the bucking and secondary winding of the transformer regulator to the load with the bucking winding dropping a portion of the input voltage there-across to compensate for the maximum expected over-voltage condition of the A.C. voltage source and that the secondary winding supplying an additional voltage variable by the degree of energization of said control windings to supply a regulated voltage to the load independent of deviations in the A.C. voltage source from the nominal value thereof.

Claim 10

A method for efficiently and variably supplying at least 50 watts of power to a load from an A.C. voltage source while simultaneously compensating for variation from the nominal potential supplied by the voltage source, said method comprising: utilizing a laminated core structure defining a primary winding leg portion, a secondary winding leg portion and a pair of control winding leg portions, all of said leg portions being in coplanar relationship, said control winding leg portions being intermediate to said primary and secondary winding leg portions for effectively shunting flux induced in said primary winding leg portion away from said secondary winding leg portion, said core structure including back portions between said primary and secondary winding leg portions thereby defining a main magnetic flux circuit that is of closed circuit configuration and is continuous and uninterrupted between said primary and secondary winding leg portions, said structure also including bridging portions between said control leg portions defining a control magnetic flux circuit that is of closed circuit configuration and is continuous and uninterrupted between said control winding leg portions and is separate from said main magnetic flux circuit; providing a control winding on each of said control winding leg portions, said control windings being electrically connected in bucking relation for application thereto of equal ampere turns for energizing same between deenergized and fully energized conditions to correspondingly vary magnetic reluctance of said control winding leg portions between minimum and maximum conditions such that said control winding leg portions variably shunt flux from said primary winding leg portion of main magnetic flux circuit away from said secondary winding leg portion in inverse proportion to the reluctance of said control winding leg portions; providing a primary winding with a plurality of turns wound about said primary winding leg portion including first and second leads for connecting same to the A.C. voltage source; providing a bucking winding with a plurality of turns, but with fewer turns than said primary winding, wound about said primary winding leg portion with a first lead of same referenced to said A.C. voltage source, said bucking winding phased in bucking relationship to said primary winding; and providing a secondary winding with a plurality of turns wound about said secondary winding leg portion with a first lead connectible to a load to which power is to be supplied, and a second lead with same connected to a second lead of the bucking winding such that said secondary winding is phased in aiding relationship with respect to said primary winding such that most of the power is transmitted from the A.C. voltage source directly through the bucking and secondary winding of the transformer regulator to the load with the bucking winding dropping a portion of the input voltage there-across to compensate for the maximum expected over-voltage condition of the A.C. voltage source and that the secondary winding supplying an additional voltage variable by the degree of energization of said control windings to supply a regulated voltage to the load independent of deviations in the A.C. voltage source from the nominal value thereof.