Transformer for RF voltage sensing
First Claim
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1. An electrosurgical system for producing a radio frequency voltage, comprising:
- a multiple-secondary transformer configured for sensing voltage, the multiple-secondary transformer including;
a primary winding having a first lead and a second lead, the first lead is coupled to an active terminal and the second lead is coupled to a return terminal of the electrosurgical system, wherein the active terminal and the return terminal are coupled to a load; and
a plurality of secondary windings, each of the secondary windings being configured to transform the radio frequency voltage into a sensed voltage, each of the secondary windings including an output coupled to a sensor circuit and configured to transmit the sensed voltage to the sensor circuit.
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Abstract
An electrosurgical system is disclosed. The electrosurgical system includes a multiple-secondary transformer configured for sensing voltage. The multiple-secondary transformer includes a primary winding coupled to an active terminal and a return terminal of the electrosurgical system and a plurality of secondary windings. Each of the secondary windings is configured to transform the radio frequency voltage into a sensed voltage. Each of the secondary windings includes an output coupled to a sensor circuit and configured to transmit the sensed voltage to the sensor circuit.
601 Citations
9 Claims
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1. An electrosurgical system for producing a radio frequency voltage, comprising:
a multiple-secondary transformer configured for sensing voltage, the multiple-secondary transformer including; a primary winding having a first lead and a second lead, the first lead is coupled to an active terminal and the second lead is coupled to a return terminal of the electrosurgical system, wherein the active terminal and the return terminal are coupled to a load; and a plurality of secondary windings, each of the secondary windings being configured to transform the radio frequency voltage into a sensed voltage, each of the secondary windings including an output coupled to a sensor circuit and configured to transmit the sensed voltage to the sensor circuit. - View Dependent Claims (2, 3, 4)
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5. A method for performing electrosurgery, the method comprising the steps of:
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providing a multiple-secondary transformer configured for sensing voltage, the multiple-secondary transformer including a primary winding, the primary winding having a first lead and a second lead, the first lead is coupled to an active terminal and the second lead is coupled to a return terminal of the electrosurgical system and a plurality of secondary windings, each of the secondary windings including an output coupled to a sensor circuit, wherein the active terminal and the return terminal are coupled to a load; generating a radio frequency voltage at a radio frequency output stage including an active terminal and a return terminal; and transforming the radio frequency voltage into a sensed voltage at each of the secondary windings and transmitting the sensed voltage to the sensor circuit via the output. - View Dependent Claims (6, 7, 8, 9)
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Specification