Patent classifications
H03K17/0424
Efficient nanosecond pulser with source and sink capability for plasma control applications
Some embodiments include a high voltage, high frequency switching circuit. In some embodiments, the high voltage, high frequency switching circuit includes a high voltage switching power supply that produces pulses having a voltage greater than 1 kV and with frequencies greater than 10 kHz; a transformer having a primary side and secondary side; an output electrically coupled with the secondary side of the transformer; and a primary sink electrically coupled with the primary side of the transformer and in parallel with the high voltage switching power supply, the primary sink comprising at least one resistor that discharges a load coupled with the output,?
Efficient nanosecond pulser with source and sink capability for plasma control applications
Some embodiments include a high voltage, high frequency switching circuit. In some embodiments, the high voltage, high frequency switching circuit includes a high voltage switching power supply that produces pulses having a voltage greater than 1 kV and with frequencies greater than 10 kHz; a transformer having a primary side and secondary side; an output electrically coupled with the secondary side of the transformer; and a primary sink electrically coupled with the primary side of the transformer and in parallel with the high voltage switching power supply, the primary sink comprising at least one resistor that discharges a load coupled with the output,?
ISOLATED GATE DRIVER
An isolated gate driver includes a transformer including primary and secondary windings, a synchronous rectifier connected between the secondary winding and an output terminal of the isolated gate driver, a first switch including a first terminal connected to a supply voltage, a second switch including a first terminal connected to the supply voltage, a first damping resistance connected between a first terminal of the secondary winding and a second terminal of the first switch, a second damping resistance connected between a second terminal of the secondary winding and a second terminal of the second switch, a first inverter including an input connected to the first terminal of the secondary winding and an output connected to a gate terminal of the first switch, and a second inverter including an input connected to the second terminal of the secondary winding and an output connected to a gate terminal of the second switch.
Synchronous rectifier
Various embodiments may relate to a synchronous rectifier including at least one rectifier cell, to which power is supplied via a secondary winding of a transformer arranged between the input connections of the synchronous rectifier. The rectifier cell comprises a bipolar main switch operated in the inverse mode, wherein an energy store is provided in the base line of the bipolar main switch, which energy store, in conjunction with an auxiliary switch which is concomitantly controlled by the relevant secondary winding for the bipolar main switch, ensures that the main switch is switched off prior to the end of the inverse phase.
Synchronous rectifier
Various embodiments may relate to a synchronous rectifier including at least one rectifier cell, to which power is supplied via a secondary winding of a transformer arranged between the input connections of the synchronous rectifier. The rectifier cell comprises a bipolar main switch operated in the inverse mode, wherein an energy store is provided in the base line of the bipolar main switch, which energy store, in conjunction with an auxiliary switch which is concomitantly controlled by the relevant secondary winding for the bipolar main switch, ensures that the main switch is switched off prior to the end of the inverse phase.
Galvanically Isolated Driver Package for Switch Drive Circuit with Power Transfer
The present application provides a packaged gate drive circuit having a transformer. The transformer which is used to transfer both signals and power from a primary side to a secondary side. The windings of the transformer are formed using a combination of tracks and wirebond wires. The transformer is positioned in a well formed using a first insulating material and covered with a second insulating material.
Galvanically Isolated Driver Package for Switch Drive Circuit with Power Transfer
The present application provides a packaged gate drive circuit having a transformer. The transformer which is used to transfer both signals and power from a primary side to a secondary side. The windings of the transformer are formed using a combination of tracks and wirebond wires. The transformer is positioned in a well formed using a first insulating material and covered with a second insulating material.
EFFICIENT NANOSECOND PULSER WITH SOURCE AND SINK CAPABILITY FOR PLASMA CONTROL APPLICATIONS
Some embodiments include a high voltage, high frequency switching circuit. In some embodiments, the high voltage, high frequency switching circuit includes a high voltage switching power supply that produces pulses having a voltage greater than 1 kV and with frequencies greater than 10 kHz; a transformer having a primary side and secondary side; an output electrically coupled with the secondary side of the transformer; and a primary sink electrically coupled with the primary side of the transformer and in parallel with the high voltage switching power supply, the primary sink comprising at least one resistor that discharges a load coupled with the output,
EFFICIENT NANOSECOND PULSER WITH SOURCE AND SINK CAPABILITY FOR PLASMA CONTROL APPLICATIONS
Some embodiments include a high voltage, high frequency switching circuit. In some embodiments, the high voltage, high frequency switching circuit includes a high voltage switching power supply that produces pulses having a voltage greater than 1 kV and with frequencies greater than 10 kHz; a transformer having a primary side and secondary side; an output electrically coupled with the secondary side of the transformer; and a primary sink electrically coupled with the primary side of the transformer and in parallel with the high voltage switching power supply, the primary sink comprising at least one resistor that discharges a load coupled with the output,
Control of a pass switch by a current source
In some examples, a controller is configured to control a power switch electrically connected in series with a winding. In some examples, the controller is also configured to control a pass switch electrically connected between an output node of the winding and a bus out node. In some examples, the controller includes a current source configured to selectively drive a charging current from an intermediate node between the power switch and the winding to a control terminal of the pass switch to turn on the pass switch.