Abstract The master/slave circuit has a power supply with two conductors. One conductor is connected to one side of both a master outlet and a slave outlet. The other conductor is connected to the main terminal 1 (MR1) of the Triacs Q1, Q2 respectively associated with the receptacles. The other side of the master receptacle is connected to the main terminal 2 of the associated Triac Q1, and to the gate of Q1, through a resistor and to the gate of Q2 through a second resistor. The other side of the slave outlet is connected to MT2 of Q2. When a tool or device plugged into the master outlet is switched on and off a device plugged into the slave will turn on and off with the master and will have the same character (speed control, Soft Start, etc.). An optional switch between the slave outlet and the second resistor connected to the gate of Q2 allows operation of the device plugged into the slave outlet without operating the master.
A master/slave circuit comprising, a master receptacle, a slave receptacle, power supply means including a plug and having a first and a second conductor, said first conductor being connected to one side of each receptacle, first and second Triacs each including a gate and a "main terminal one" connected to said second conductor of said power supply cord and also including a "main terminal two", said gate of said first Triac being connected to the other side of said master receptacle through a first resistor, said gate of said second Triac being connected to said other side of said master receptacle through a second resistor, said "main terminal two" of said first and second Triacs being connected to said master and slave receptacles respectively, electric power consumption at said master receptacle being controlled by a device plugged into said master receptacle and the power characteristics of such consumption at said master receptacle being applied to the gate of said second Triac to cause such power characteristics to be supplied to said slave receptacle, and a switch operative when closed to connect the other side of said slave receptacle to said gate of said second Triac through said second resistor whereby a device connected to said second receptacle can be energized independently of the master receptacle.
Claim 2
Dependent Claim
215 words
A master/slave circuit comprising, a master receptacle, a slave receptacle, power supply means including a plug and having a first and a second conductor, said first conductor being connected to one side of each receptacle, first and second Triacs each including a gate and a "main terminal one" connected to said second conductor of said power supply cord and also including a "main terminal two", said gate of said first Triac being connected to the other side of said master receptacle through a first resistor, said gate of said second Triac being connected to said other side of said master receptacle through a second resistor, said "main terminal two" of said first and second Triacs being connected to said master and slave receptacles respectively, electric power consumption at said master receptacle being controlled by a device plugged into said master receptacle and the power characteristics of such consumption at said master receptacle being applied to the gate of said second Triac to cause such power characteristics to be supplied to said slave receptacle, and a switch operative when closed to connect the other side of said slave receptacle to said gate of said second Triac through said second resistor whereby a device connected to said second receptacle can be energized independently of the master receptacle.