Isolation device and method of transmitting a signal across an isolation material using wire bonds
AssigneeMpics Innovations Pte. Ltd
InventorsKok Keong Richard LUM, Hong Sia TAN
Life of this patent
Estimating the term…
Abstract
An isolation system and isolation device are disclosed. An illustrative isolation device is disclosed to include a transmitter circuit, a detector circuit, a first wire bond, and a second wire bond. The detector circuit is configured to generate a first current in accordance with a first signal. The first wire bond is configured to receive the first current from the transmitter circuit to generate a magnetic flux. The second wire bond is configured to receive the magnetic flux. An induced current in the second wire bond is then detected in the detector circuit. The detector circuit is configured to generate a reproduced first signal, as an output of the detector circuit.
Claims20
A device for transmitting a first signal from a first circuit to a second circuit, comprising:
- a transmitter circuit configured to generate a first current in accordance with a first signal;
- a first elongated conducting element configured to generate a magnetic field when the first current flows through the first elongated conducting element;
- a second elongated conducting element adjacent to the first elongated conducting element so as to receive the magnetic field, wherein the second elongated conducting element is configured to generate an induced current when the magnetic field is received;
- and
- a receiver circuit configured to receive the induced current as an input, and configured to generate a reproduced first signal as an output of the receiver circuit.
A method of transmitting a signal from a first circuit to a second circuit, comprising:
- generating a first current that corresponds with a first signal using a transmitter die;
- directing the first current to flow through a first wire bond so as to generate a magnetic field;
- receiving the magnetic field using a second wire bond that is connected to a receiver die, wherein an induced current is generated in the second wire bond when the magnetic field is incident on the second wire bond;
- and
- detecting the induced current using a sensing circuit.
An isolation system, comprising:
- a transmitter circuit, wherein the transmitter circuit is configured to generate a first current in accordance with a first signal;
- a first elongated structure configured to receive the first current so as to generate a magnetic flux in accordance with the first current;
- a second elongated structure for receiving the magnetic flux from the first elongated structure so as to generate an induced current;
- and
- a detector circuit that is electrically isolated from the transmitter circuit, wherein the detector circuit is configured to receive the induced current as input, and configured to generate a reproduced first signal, as an output of the detector circuit.
Dependencies are inferred from the claim text.