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Resistance variable memory device performing program and verification operation,System and method for activating and deactivating a remotely controlled vehicle starter,Curtain device with automatic adjusting function and warning function,Input surge current suppression circuit and method of capacitor

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4 results about "Variable resistance" patented technology

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A string potentiometer is a multi-turn potentiometer operated by an attached reel of wire turning against a spring, enabling it to convert linear position to a variable resistance. User-accessible rotary potentiometers can be fitted with a switch which operates usually at the anti-clockwise extreme of rotation.

Resistance variable memory device performing program and verification operation

InactiveCN101727982ARead-only memoriesDigital storageComputer scienceControl logic

A variable resistance memory device includes: a memory cell array comprising a plurality of memory cells, a pulse shifter shifting a plurality of program pulses to generate a plurality of shifted program pulses, a write and verification driver receiving the plurality of shifted program pulses to provide a program current that varies with the plurality of shifted program pulses to the plurality of memory cells, and control logic providing the plurality of program pulses to the pulse shifter and the write and verification driver during a program / verification operation, such at least two write data bits are programmed to the memory cell array in parallel during the program / verification operation.

Owner:SAMSUNG ELECTRONICS CO LTD

System and method for activating and deactivating a remotely controlled vehicle starter

ActiveUS20090178639A1Simple and economical to manufactureFrequency-division multiplex detailsDigital data processing detailsTelecommunicationsControl engineering

A system for activating and deactivating a remotely controlled vehicle starter includes a handheld mobile communication device having at least a speaker mounted therein and a wireless transmitter having at least a start switch mounted therein. A first wire connects a negative voltage supply path to the speaker circuit with a negative voltage supply path to the start switch circuit. A variable resistor is provided and has a pair of end terminals. There is a second wire having each of a first end thereof electrically connected to a positive voltage supply path to the speaker circuit and an opposed second end thereof electrically connected to one terminal end of the variable resistor. A third wire is also provided to connect an opposed end terminal of the variable resistor to a positive voltage supply path to the start switch.

Owner:GALLARZO JOSE L

Curtain device with automatic adjusting function and warning function

ActiveCN111000418AHas a warning effectThe problem of reaching auto-regulationCurtain rodsPump controlEngineeringFan blade

The invention relates to the technical field of electric curtains. The invention discloses a curtain device with an automatic adjusting function and a warning function. The curtain device includes a wall and a supporting rod, a thick curtain is connected to the lower ends of hanging rings, the lower end of a second moving block is connected with a thin curtain, first fan blades are arranged at theright end of the second threaded lead screw, a photoresistor is connected to the upper end of the wall and the upper side of the supporting rod, second fan blades are arranged on the outer side of arotating shaft, a control device is arranged in the wall, an air bag is connected between fixing supports, and a variable resistor corresponding to metal balls is arranged on the upper side in the wall. The photoresistor is irradiated by sunlight, the control device controls a first driving device to drive a first threaded lead screw to rotate, wind power generated by rotation of the second fan blades pushes the first fan blades to rotate slowly, the first fan blades drive the second threaded lead screw to rotate, the second moving block drives the thin curtain to move leftwards, and the structure solves the problem that an existing electric curtain cannot be adjusted according to the illumination angle.

Curtain device with automatic adjusting function and warning function

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Owner:台州市路桥台龙机电配件厂(普通合伙)

Input surge current suppression circuit and method of capacitor

ActiveCN114006362AEnhanced inhibitory effectDoes not affect power supplyEmergency protective arrangements for limiting excess voltage/currentCapacitanceInternal resistance

The invention discloses an input surge current suppression circuit and method of a capacitor, and relates to the technical field of power electronics. The input surge current suppression circuit comprises a variable resistance circuit, a detection control unit is arranged for the conduction internal resistor of a field effect transistor Q1 in the variable resistance circuit, the detection control unit is used for detecting the flowing surge current, and when the surge current is greater than a set value, the variable resistance circuit is immediately recovered to high resistance, so that the energy storage capacitor branch is cut off from the load of the input power supply, and the input surge current is suppressed. The input surge current suppression circuit is simple, low in cost, good in power-on surge current suppression effect and high in universality.

Owner:SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP

4 results about "Variable resistance" patented technology

Resistance variable memory device performing program and verification operation

System and method for activating and deactivating a remotely controlled vehicle starter

Curtain device with automatic adjusting function and warning function

Input surge current suppression circuit and method of capacitor

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