96results about How to "Limit magnitude" patented technology

A two-wire load control device, such as a dimmer, is operable to control the amount of power delivered to an electrical load, such as a magnetic low-voltage (MLV) load, and comprises a bidirectional semiconductor switch, a timing circuit, a trigger circuit having a variable voltage threshold, and a clamp circuit. When a timing voltage signal of the timing circuit exceeds an initial magnitude of the variable voltage threshold, the trigger circuit is operable to render the semiconductor switch conductive, reduce the timing voltage signal to a predetermined magnitude less than the initial magnitude, and to increase the variable voltage threshold to a second magnitude greater than the first magnitude. The clamp circuit limits the magnitude of the timing voltage signal to a clamp magnitude between the initial magnitude and the second magnitude, thereby preventing the timing voltage signal from exceeding the second magnitude. Accordingly, multiple attempted firings of the semiconductor switch are avoided, and the MLV dimmer is prevented from conducting asymmetric current when an MLV transformer of the MLV load is unloaded.

A turbine stage one bucket has an airfoil having a plurality of cooling holes passing through the airfoil from 0% span to 100% span whereby cooling air exits the airfoil tip into the hot gas path. X and Y coordinate values are given in Table I, locating the holes relative to the airfoil profile at airfoil profile sections of 5%, 50% and 90% span, Table I also giving the hole diameters. In this manner, cooling hole optimization for this turbine bucket airfoil is achieved. The cooling holes are also located in relation to the profile of the bucket airfoil given by the X, Y and Z coordinate values of Table II, the two coordinate systems having the same origin.

An implantable medication delivery apparatus including a flow path coupling a medication reservoir to a device outlet port where the flow path includes a regulator means for limiting the magnitude of pressure transferred downstream from the medication reservoir. The regulator means is configured to respond to the reservoir pressure exceeding a certain threshold for closing a valve located downstream from the reservoir. The valve closure functions to isolate the device outlet port from further reservoir pressure increases which otherwise could induce unintended medication flow from the device outlet port.

A surge suppression circuit for a load control device allows the load control device to pass hipot testing, while providing improved protection of the load control device during surge events. The load control device comprises a load control circuit and a filter circuit for preventing noise generated by the load control circuit from being provided to an AC power source. The surge suppression circuit comprises a clamping device adapted to be electrically coupled across the AC power source, and first and second spark gaps coupled across the filter circuit for limiting the magnitude of the voltage generated by inductive components of the filter circuit. The filter circuit may comprise a common-mode choke, and two series-connected capacitor having their junction connected to earth ground. Alternatively, the filter circuit may additionally comprise a differential-mode choke.

Disclosed herein is a display apparatus including a pixel-array unit, a scanner unit and a signal unit. The pixel-array unit has pixels laid out to form a matrix and each provided at an intersection of first and second scanning lines each oriented in a row direction of the matrix and a signal line oriented in a column direction of the matrix. The signal unit provides a video signal to the signal line. The scanner unit sequentially scans the pixels of the matrix in row units by supplying first and second control signals to the first and second scanning lines respectively.

A novel vehicle deceleration control device for ensuring a proper distance between a vehicle and a preceding vehicle, etc., equipped on a vehicle, automatically decelerates the vehicle by controlling braking force based on a target deceleration, calculated based on a relative distance and a relative speed between the vehicle and its preceding vehicle, etc., when automatic deceleration is required. The inventive device, however, will decelerate the own vehicle based on a maximum allowable deceleration when the magnitude of the target deceleration is larger than the magnitude of the maximum allowable deceleration, restricting the vehicle deceleration. The maximum allowable deceleration is determined based on the vehicle speed of the own vehicle when a predetermined condition is satisfied, and maintained at a constant or within a predetermined range, thereby enabling a driver to judge the necessity of braking operation by himself during restricting the vehicle deceleration more easily than ever.

A novel vehicle deceleration control device for ensuring a proper distance between a vehicle and a preceding vehicle, etc., equipped on a vehicle, automatically decelerates the vehicle by controlling braking force based on a target deceleration, calculated based on a relative distance and a relative speed between the vehicle and its preceding vehicle, etc., when automatic deceleration is required. The inventive device, however, will decelerate the own vehicle based on a maximum allowable deceleration when the magnitude of the target deceleration is larger than the magnitude of the maximum allowable deceleration, restricting the vehicle deceleration. The maximum allowable deceleration is determined based on the vehicle speed of the own vehicle when a predetermined condition is satisfied, and maintained at a constant or within a predetermined range, thereby enabling a driver to judge the necessity of braking operation by himself during restricting the vehicle deceleration more easily than ever.

The ramming device comprises a ramming element to be assigned to the end of a rock breaker. The inventive device receives the shocks generated by the rock breaker and transmits them to fragments to be compacted. The ramming device also has a frame comprising: positioning means for positioning relative to the rock-breaker so that the axis of the frame is coincident with the axis of the rock breaker; joining means that enable the temporary and removable fixing of the frame to the end of the rock breaker; axially translational guiding means for guiding the ramming element relative to the frame; means for blocking the rotation of the ramming element about the axis of the frame, and; means for limiting the amplitude of this translation.