DUAL VOLTAGE SWITCHING IN POWER GENERATION
First Claim
1. A dual voltage generator having a first leg variably connected to a first hot line and a second leg switched between a second hot line and a neutral line, the dual voltage generator comprising, for switching from a low voltage to a high voltage:
- a module configured to insert a resistor between the first leg and the first hot line and to disconnect a neutral line from a second leg;
a module configured to close a first switch, after the first period of time to connect the second hot line to the generator; and
a module configured to open a second switch, after a second period of time and close a third switch to remove the resistor from being between the first leg and the first hot line.
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Accused Products
Abstract
A system and method for switching from one voltage to another voltage are disclosed. The system relates to an induction generator or motor that switches between a first voltage and a second voltage. The method comprises transitioning between two or more voltage levels by inserting and removing resistance and capacitance following a systematic timing scheme. The generator/motor may have one or more windings, such as a primary and auxiliary winding.
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Citations
21 Claims
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1. A dual voltage generator having a first leg variably connected to a first hot line and a second leg switched between a second hot line and a neutral line, the dual voltage generator comprising, for switching from a low voltage to a high voltage:
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a module configured to insert a resistor between the first leg and the first hot line and to disconnect a neutral line from a second leg; a module configured to close a first switch, after the first period of time to connect the second hot line to the generator; and a module configured to open a second switch, after a second period of time and close a third switch to remove the resistor from being between the first leg and the first hot line. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dual-voltage generator having a first leg always connected to a first hot line and a second leg switched between a second hot line and a neutral line, the dual-voltage generator comprising:
a first module configured to switch the dual-voltage generator from lower voltage to a higher voltage, the first module performing the steps; inserting a resistor between the first hot line and the first leg; disconnecting the neutral line from the second leg of the dual-voltage generator; after a first period of time, connecting the second hot line to the second leg; and after a second period of time, removing the resistor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a dual-voltage generator having a first leg always connected to a first hot line and a second leg switched between a second hot line and a neutral line, a method of switching from one voltage to another voltage, the method comprising:
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switching from a first voltage to a second voltage by; inserting a resistor between the first hot line and the first leg; disconnecting the neutral line from the second leg of the dual-voltage generator; connecting the second hot line to the second leg after a first period of time; and removing the resistor after a second period of time; and inserting the resistor in between the first hot line and the first leg; removing a run capacitance between the first hot leg and auxiliary winding; connecting the neutral line to the second leg after a third period of time; removing the resistor after a fourth period of time; and inserting the run capacitance back into the system after a fifth period of time. - View Dependent Claims (19)
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20. A dual-voltage generator comprising:
means for transitioning from a first voltage level to a second voltage level by inserting a first resistance and/or a first capacitance and removing a second resistance and/or a second capacitance according to a timing scheme.
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21. A method of switching from one voltage to another voltage in an induction generator/motor, the method comprising:
transitioning between two or more voltage levels by inserting and/or removing resistance and/or capacitance following a systematic timing scheme.
Specification