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US 10,651,147 B2Granted
Signal isolator having bidirectional communication between die
AssigneeAllegro MicroSystems, LLC
InventorsAlexander Latham, Joseph James Judkins, III, Neil Tan
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for bi-directional communication between first and second die of a signal isolator for feedback and/or diagnostic signals. In embodiments, the first and second die can be matched.
Claims59
A device, comprising:
- a first die;
- and
- a second die with a voltage barrier region between the first and second die,
- wherein transmit and receive paths of the first and second dies provide data transfer and bi-directional communication between the first and second die for feedback and/or diagnostic signals,
- wherein the first and second dies are substantially identical and rotated one-hundred and eighty degrees with respect to each other,
- wherein the transmit path comprises, in order, a first transmitter bridge, a first coil, a first voltage isolation barrier and a first magnetic sensing element and the receive path comprising, in order, a second magnetic sensing element, a second voltage isolation barrier, a second coil, and a second transmitter bridge.
3 more elements
A device comprising:
- a first die;
- a second die;
- and
- a voltage barrier means between the first and second die;
- and
- an encoding/decoding means for providing transmit and receive paths between the first and second sets of input/output pins, wherein the transmit and receive paths of the first and second dies provide data transfer and bi-directional feedback and/or diagnostic signal transfer between the first and second die,
- wherein the first and second dies are substantially identical and rotated one-hundred and eighty degrees with respect to each other,
- wherein the transmit path comprises, in order, a first transmitter bridge, a first coil, a first voltage isolation barrier and a first magnetic sensing element and the receive path comprises, in order, a second magnetic sensing element, a second voltage isolation barrier, a second coil, and a second transmitter bridge.
5 more elements
A method, comprising:
- employing a first die;
- employing a second die;
- configuring the first and second dies for a voltage barrier region between the first and second dies;
- and
- selectively configuring transmit and receive paths of the first and second dies to provide data transfer and bi-directional feedback and/or diagnostic signal transfer between the first and second die,
- wherein the first and second dies are substantially identical and rotated one-hundred and eighty degrees with respect to each other,
- wherein the transmit path comprises, in order, a first transmitter bridge, a first coil, a first voltage isolation barrier and a first magnetic sensing element and the receive path comprises, in order, a second magnetic sensing element, a second voltage isolation barrier, a second coil, and a second transmitter bridge.
4 more elements
A device, comprising:
- a first die;
- and
- a second die with a voltage barrier region between the first and second die,
- wherein transmit and receive paths of the first and second dies provide data transfer and bi-directional communication between the first and second die for feedback and/or diagnostic signals,
- wherein the transmit path comprises, in order, a first transmitter bridge, a first coil, a first voltage isolation barrier and a first magnetic sensing element and the receive path comprises, in order, a second magnetic sensing element, a second voltage isolation barrier, a second coil, and a second transmitter bridge, and
- wherein the first die includes the first transmitter bridge, the second die includes the first coil, and the second die includes the first magnetic sensing element.
3 more elements
A device comprising:
- a first die;
- a second die;
- and
- a voltage barrier means between the first and second die;
- and
- an encoding/decoding means for providing transmit and receive paths between the first and second sets of input/output pins, wherein the transmit and receive paths of the first and second dies provide data transfer and bi-directional feedback and/or diagnostic signal transfer between the first and second die,.
- wherein the transmit path comprises, in order, a first transmitter bridge, a first coil, a first voltage isolation barrier and a first magnetic sensing element and the receive path comprises, in order, a second magnetic sensing element, a second voltage isolation barrier, a second coil, and a second transmitter bridge, and
- wherein the first die includes the first transmitter bridge, the second die includes the first coil, and the second die includes the first magnetic sensing element.
5 more elements
A method, comprising:
- employing a first die;
- employing a second die;
- configuring the first and second dies for a voltage barrier region between the first and second dies;
- and
- selectively configuring the transmit and receive paths of the first and second dies to provide data transfer and bi-directional feedback and/or diagnostic signal transfer between the first and second die,
- wherein the transmit path comprises, in order, a first transmitter bridge, a first coil, a first voltage isolation barrier and a first magnetic sensing element and the receive path comprises, in order, a second magnetic sensing element, a second voltage isolation barrier, a second coil, and a second transmitter bridge, and
- wherein the first die includes the first transmitter bridge, the second die includes the first coil, and the second die includes the first magnetic sensing element.
4 more elements
Dependencies are inferred from the claim text.