They combine the simplicity of electrical operation with the precision of hydraulic control and the reliability of mechanical spring return or accumulator fail-safe action.
Fail-Safe Function Most LVDS receivers require internal or external fail-safe circuitry so that under a specific link condition or failure the receiver's output will have a known logic condition, usually logic-high.
Summary This application note discusses the design, operation, strengths and shortcomings of three different fail-safe circuits: external-biasing, in-path, and parallel circuits.
The card only works after successfully authenticating a registered fingerprint, and it has various failsafes and backup procedures built in for emergency access.
Fail-safe operation of Pressure Safe units can be triggered by electrical signals, high or low pressure pilots or fire sensors, enabling the reliable fulfilment of many ESD(Emergency Shutdown) and pressure related protection duties in the oil, gas, petrochemical and pipeline industries.
IQT Fail-safe Type 2- Integral BatterySuitable for use in non-hazardous locations only, Type 2 includes a battery located in the actuator terminal cover, charged from an integral charging system when AC power is applied to the actuator.
From the values shown in Figure 3, we see that even with±5% resistors, the fail-safe differential voltage only changes between -15% to +15%, which is far more robust than the circuit shown in Figure 2.
The MAX9173 operates from a single 3.3V supply, and is specified for operation from -40°C to +85°C. Refer to the MAX9121/MAX9122 data sheet for lower jitter quad LVDS receivers with parallel fail-safe.
Thanks to its high brightness output, it can be used with screens up to four metres wide at 14ftL, the standard for digital cinema.±0.002 points colour accuracy REC709 minimum native colour space DLP® technology 3D stereoscopic model available User adjustable brightness output for screen size fit Wide range of HD lens options Failsafe DuArchTM architecture Ethernet management.
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