84results about How to "Quick response to changes" patented technology

Provides a switching regulator control circuit, a switching regulator and a switching regulator control method for achieving low current consumption and quick response at normal operating time. A change-over switch MFB for opening / closing the phase compensation is provided to establish both the quick responsibility using a gain of an error amplifier EA provided with no phase compensation and stability of control system provided with phase compensation. By turning the change-over switch MFB non-conductive at a timing in which the PMOS transistor M1 turns to conductive, the phase compensation between the input and output of the error amplifier EA is cut off. A detection voltage VM is amplified in term of error with a gain of the error amplifier EA itself. A quick transient response to changes in the output voltage VOUT is achieved corresponding to maximum response characteristic. Phase compensation between the input and output of the error amplifier EA is formed by turning the change-over switch MFB conductive at a timing in which the PMOS transistor M1 turns to non-conductive. Consequently, stability of the control system can be secured.

The invention relates to a pressure control valve, in particular to a magnetorheological pressure control valve for achieving hydraulic system pressure control through a force required to start the control valve. The pressure control valve comprises an inner valve body, a valve core, a blanking cap, a main valve body, a working chamber containing magnetorheological fluid, a coil assembly composed of a coil and a magnet separation jacket, an outer valve body, an upper valve body, a thrust shaft, a spring seat, a reset spring, an end cap, a travel switch sensor and a plurality of rubber seal rings. The magnetorheological pressure control valve is simple in structure, convenient to manufacture, high in energy efficiency and quick in pressure response and stepless and intelligent control of system pressure can be achieved.

The disclosed invention is a new concept for controlling the flatness of the strip during the rolling of aluminium strip or foil (2). The system consists of a full width bank of cryogenic roll cooling devices (7) acting on the roll (s) (4) and a full width bank of roll heating devices (8) also acting on the roll(s). Both or either of the cooling and heating banks are divided into individually controllable zones. A process automation system controls the action of the cooling and heating banks via feedback from a strip shape meter (9) and / or a predictive process model, in order, by thermal growth / contraction, to create the best roll profile for rolling flat strip.

The invention relates to a middleware architecture of an Internet of things, which comprises a reader layer and an application layer, and is characterized in that: the middleware of the Internet of things comprises an edge layer and an integration layer arranged between the reader layer and the application layer in turn, wherein the edge layer periodically polls a reader through an edge server soas to eliminate repeated operation, executes filtering and equipment management function, simultaneously generates application event management protocol ALE events and transmits the ALE events to theintegration layer; the integration layer receives a plurality of ALE events and combines the ALE events into a workflow; and the workflow is used as one part of a larger service flow to be in contacted application to different systems. In addition, the invention provides SOA architecture-based middleware of the Internet of things. The middleware architecture of the Internet of things is an intermediate program architecture for implementing data transmission, filtering, data format conversion between RFID hardware equipment and an application system, and reduces the difficulty of application development. Therefore, a developer calls through the middleware without directly facing a bottom architecture.