Acoustic galvanic isolator incorporating single insulated decoupled stacked bulk acoustic resonator with acoustically-resonant electrical insulator
First Claim
Patent Images
1. An acoustic galvanic isolator, comprising:
- a carrier signal source;
a modulator connected to receive an information signal and the carrier signal;
a demodulator; and
connected between the modulator and the demodulator, an electrically-isolating acoustic coupler comprising a single insulating decoupled stacked bulk acoustic resonator (IDSBAR), the IDSBAR comprising an acoustically-resonant electrical insulator.
12 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the acoustic galvanic isolator comprise a carrier signal source, a modulator connected to receive an information signal and the carrier signal, a demodulator, and an electrically-isolating acoustic coupler connected between the modulator and the demodulator. The acoustic coupler comprises no more than one decoupled stacked bulk acoustic resonator (IDSBAR). An electrically-isolating acoustic coupler based on a single IDSBAR is physically small and is inexpensive to fabricate yet is capable of passing information signals having data rates in excess of 100 Mbit/s and has a substantial breakdown voltage between its inputs and its outputs.
302 Citations
22 Claims
-
1. An acoustic galvanic isolator, comprising:
-
a carrier signal source; a modulator connected to receive an information signal and the carrier signal; a demodulator; and connected between the modulator and the demodulator, an electrically-isolating acoustic coupler comprising a single insulating decoupled stacked bulk acoustic resonator (IDSBAR), the IDSBAR comprising an acoustically-resonant electrical insulator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for galvanically isolating an information signal, the method comprising:
-
providing an electrically-isolating acoustic coupler comprising a single insulating decoupled stacked bulk acoustic resonator (IDSBAR), the IDSBAR comprising an acoustically-resonant electrical insulator; providing a carrier signal; modulating the carrier signal with the information signal to form a modulated electrical signal; acoustically coupling the modulated electrical signal through the electrically-isolating acoustic coupler; and recovering the information signal from the modulated electrical signal acoustically coupled through the electrically-isolating acoustic coupler. - View Dependent Claims (18, 19, 20, 21, 22)
-
Specification