Polarity, Inc. Patent applications |
Patent application number | Title | Published |
20100135047 | High-Voltage Modulator System - A high-power modulation system includes drive circuitry that receives input signals from the signal source via a series of transformers. The drive circuitry amplifies the input signals and provides the resulting amplified signals to the high-power switch. The switch includes a series of stacked switching elements, each with a control terminal, first and second current-handling terminals, and feedback path extending between the first current-handling terminal and the control terminal. The feedback paths work in concert to turn the switches on and off together to prevent excessive voltage from developing across one or a subset of the switching elements. The feedback path includes a resistor that dampens the bandwidth of the feedback path to reduce turn-off and turn-on ringing and oscillation. The damping resistor may be coupled in series with a diode that holds charge against the control terminal of the switching element. | 06-03-2010 |
20100127811 | Transformer with Center Tap Encompassing Primary Winding - A transformer housing encompasses a core and both primary and secondary windings. The primary or secondary windings can be incorporated into the housing, and the housing itself can provide a center tap for the transformer. | 05-27-2010 |
20100090788 | Transformer With Center Tap Encompassing Primary Winding - A transformer housing encompasses a core and both primary and secondary windings. The primary or secondary windings can be incorporated into the housing, and the housing itself can provide a center tap for the transformer. | 04-15-2010 |