Method of parasitic oscillation reduction and parasitic oscillation immune resonant converter
AssigneeKnowledgeable Holdings LLC
InventorDerek Sinz
Life of this patent
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Abstract
A method is disclosed for preventing a driver from changing the state of an output switch in response to parasitic oscillation that includes allowing or preventing a signal from the driver from reaching the output switch based on a timing signal. Also disclosed is a way to prevent a driver from changing the state of an output switch in response to parasitic oscillation by using a directional element, a timing element, and a control element. An exemplary oscillator circuit that uses a diode, a MOSFET, and a resistor to prevent parasitic oscillation without adding propagation delay, and a block diagram of circuit functionality, is also disclosed.
Claims19
A method for preventing a driver from changing the state of an output switch in response to parasitic oscillation, said method comprising:
- allowing a first state signal emitted by the driver to reach the output switch, wherein said first state signal causes the output switch to enter a first state;
- receiving a first timing signal, wherein the receipt of said first timing signal prevents first state signals emitted by the driver from reaching the output switch, and;
- receiving a second timing signal, wherein the receipt of said second timing signal causes said method to repeat.
A signal conveying means for conveying a plurality of signals from a driver to a output switch in a resonant oscillator, said signal conveying means comprising:
- a first timing means for generating a first timing signal, and;
- a first signal path comprising said output switch and said driver;
- wherein said first signal path further comprises a first directional means for conditionally preventing a specific signal from being conveyed based the direction of change said specific signal would cause to the output switch;
- wherein said first signal path further comprises a first control means for preventing said plurality of signals from being conveyed based on said timing signal.
An oscillator circuit, said oscillator circuit comprising:
- a timing element;
- an output switch whose state is determined by the voltage level of a gate;
- a first current path containing a driver, a directional element, a control element, and said output switch;
- wherein said timing element generates a first timing signal in response to an event;
- wherein said directional element reduces the amount of current or charge which can flow along said first current path in a first direction;
- wherein said control element reduces the amount of current or charge which can flow along said first current path based upon said first timing signal.
Dependencies are inferred from the claim text.