52results about How to "Consistent power" patented technology

Compensation system adapted for use with a battery-powered, PWM-driven portable electronic device to enable consistent power to the device load despite battery voltage drop resulting from battery depletion, comprising: a voltage divider circuit for proportionally adjusting the voltage to a measurable range; an analog-to-digital converter for receiving the output from the voltage divider and converting it into a digital voltage value; and a microprocessing unit for running software code steps for receiving digital voltage input and user-determined power setting input for determining a compensating duty cycle for application by the software to the PWM to drive the load consistently at the user-determined power setting despite decrease in battery voltage resulting from battery depletion.

There is provided a fuel cell system capable of reducing irregularities of voltage of fuel cells and stabilizing the generation power of the fuel cell stack. The fuel cell system includes a fuel cell stack formed by a plurality of fuel cells connected in series, a fuel supply device, an air supply device, and a controller. The controller sets at least one of the fuel supply amount and the air supply amount for each of the fuel cells according to voltage of each of the fuel cells so as to minimize the irregularities of voltages of the fuel cells. The fuel supply device supplies fuel to each of the fuel cells according to the fuel supply amount of each of the fuel cells and / or the air supply device supplies air to each of the fuel cells according to the air supply amount of each of the fuel cells.

The invention discloses an indoor signal equalization distribution system, which includes an indoor micro base station and a plurality of radio frequency power equalizers connected in series through radio frequency transmission lines, the signal output port of the indoor micro base station is connected to the radio frequency power equalizer at the head end through the radio frequency transmission line The signal input port is connected, the branch signal output port of each said radio frequency power equalizer is respectively connected with a radiation antenna, each said radio frequency power equalizer, the radio frequency transmission line connected with the signal input port of the radio frequency power equalizer and connected The radiation antenna on the radio frequency power equalizer is a signal radiation node. The invention can make the 5G signal fully covered indoors, and the coverage, amplitude and phase of the signal are highly consistent, and the receiving effect of the mobile terminal is good.

The invention discloses an adaptive power output regulating intelligent heating control card and a control method thereof, wherein the card and the control method thereof relate to the field of temperature control technology. The control card comprises the components of 16 silicon controlled rectifier output ends, a current transformer, a voltage transformer, a temperature sensor and a microprocessor, wherein the 16 silicon controlled rectifier output ends, the current transformer, the voltage transformer, the temperature sensor and the microprocessor are photoelectrically isolated. Accordingto the adaptive power output regulating intelligent heating control card and the control method thereof, through acquiring related variables of actual power, power supply voltage and ambient temperature change at each heating control point, through a related algorithm, on the condition of certain preset power, the power output of the temperature control point is automatically regulated so that actually output heating power is same with the preset power and accurate temperature controlling is realized. The adaptive power output regulating intelligent heating control card and the control methodthereof have advantages of low investment, simple structure, high reliability, high stability and high convenience in mounting and debugging.

The invention relates to a method for controlling and adjusting an internal combustion engine (1), the rail pressure (pCR) being controlled in a closed loop mode in the normal operating state and an emergency operation mode being activated once a defective rail pressure sensor (9) is detected, in which emergency operation the rail pressure (pCR) is controlled in an open loop mode. The invention is characterized in that in the emergency operation mode, the rail pressure (pCR) is gradually increased until a passive pressure relief valve (11) is activated which redirects fuel from the rail (6) to the fuel tank (2) when it is open.

A method is proposed for controlling and regulating an internal combustion engine (1), in which the rail pressure (pCR) is adjusted in normal operation and in which switching from normal operation to Emergency operation, in which the accumulator pressure (pCR) is controlled. The invention is characterized in that in emergency operation the accumulator pressure (pCR) is continuously increased until the passive pressure limiting valve (11) responds, which, in the opened state, Fuel leaks from the accumulator (6) into the fuel tank (2).

The invention discloses a multifunctional electric cup, which comprises a cup body with a handle. A cup unit for containing liquid and a heating assembly for heating the liquid are disposed in the cup body, the heating assembly comprises at least two tubular electric heating elements and a control circuit for controlling the work states of the tubular electric heating elements, the control circuit is provided with a voltage selector switch, the tubular electric heating elements comprise a tubular electric heating element I and a tubular electric heating element II which are parallelly connected into the control circuit, when in a low voltage state, both the tubular electric heating element I and the tubular electric heating element II are in work states by the aid of the voltage selector switch, and when in a high voltage state, the tubular electric heating element I or the tubular electric heating element II is independently in a work state by the aid of the voltage selector switch. A double voltage design is adopted, functions of heating the liquid and generating steam of the electric cup are switched by a bidirectional power switch, the work states of the tubular electric heating element I and the tubular electric heating element II are changed by the aid of the voltage selector switch, so that the multifunctional electric cup can work between different work voltages but the powers keep consistent, and the multifunctional electric up is convenient, fast, safe and reliable, and is high in practicality.