×

Isolation device and system

  • US 9,531,280 B2
  • Filed: 05/09/2014
  • Issued: 12/27/2016
  • Est. Priority Date: 05/09/2014
  • Status: Active Grant
First Claim
Patent Images

1. An isolation device, comprising:

  • a first semiconductor die;

    a second semiconductor die formed adjacent to but electrically isolated from the first semiconductor die;

    a modulator, the modulator configured to modulate a first signal into a modulated pulse signal;

    a transmitter configured to transmit the modulated pulse signal from the first semiconductor die to the second semiconductor die, wherein the transmitter and the modulator reside within the first semiconductor die;

    a detector configured to receive the modulated pulse signal and, in response thereto, generate a received modulated pulse signal as output to the detector;

    a counter coupled to the detector, the counter configured to count in accordance to a pulse length of the received modulated pulse signal; and

    a control circuit configured to determine an indication of the first signal by using the counter.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×