Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1985-04-01
1987-04-21
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307257, 328151, H03K 1716, H03K 1774, G11C 2702
Patent
active
046599452
ABSTRACT:
A high frequency sample and hold circuit has a sampling diode bridge for coupling an input test signal to be sampled to a holding capacitor when all of the diodes of the bridge are forward biased by an applied strobe signal, thereby charging the capacitor to the input voltage. The diode bridge substantially uncouples the input signal from the holding capacitor when the strobe current direction is reversed such that the holding capacitor retains the charge stored thereon and therefore remains charged to the current sample signal voltage at the instant the strobe current reverses direction. Any holding capacitor charging current generated by the sampling bridge as it returns to equilibrium after strobe current reversal is offset by a holding capacitor charging current of substantially equal magnitude and opposite phase generated by a compensating bridge. The compensating bridge has capacitive coupling characteristics substantially matching those of the sampling bridge and produces the reverse phase charging current either as a result of an applied input signal being of reverse phase to the sampling bridge input signal or as a result of an applied strobe current being of reverse phase to the sampling bridge strobe signal.
REFERENCES:
patent: 3596191 (1971-07-01), Stuckert
patent: 3710141 (1973-01-01), Zeiger
patent: 4518921 (1985-05-01), Logan
Dellett John P.
Tektronix Inc.
Zazworsky John
LandOfFree
Sampling bridge does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sampling bridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sampling bridge will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-754118