Patent ID: 8736343
Filing Date: 2014-05-27
Classification: H01F,H01L,H03K,H04L

Abstract:
1. A method for providing an isolated logic output signal, comprising: in response to receiving an input data signal, generating a first edge detection signal indicating a rising edge of the received input data signal and a second edge detection signal indicating a falling edge of the received input data signal, the first edge detection signal being different from the second edge detection signal; inputting the first and second edge detection signals to a primary winding of a transformer to transform the first and second edge detection signals from a first voltage to a second voltage, the first edge detection signal having a different pulse pattern than the second edge detection signal; inputting the transformed edge detection signals from a secondary winding of the transformer to a first input of a D-type flip-flop and to an input of a nonretriggerable edge triggered mono-stable multivibrator; outputting from the non-retriggerable edge triggered mono-stable multivibrator a logic signal to a second and third input of the D-type flip-flop, wherein the logic signal is representative of the pulse pattern of the first edge detection signal; and in response to an output from the D-type flip-flop, generating an output signal.