31results about How to "The voltage signal is stable" patented technology

Provided are a semiconductor memory device and a method of driving the device which can improve a noise characteristic of a voltage signal supplied to a memory cell of the device. The semiconductor memory device includes a first semiconductor chip and one or more second semiconductor chips stacked on the first chip. The first chip includes an input / output circuit for sending / receiving a voltage signal, a data signal, and a control signal to / from an outside system. The one or more second semiconductor chips each include a memory cell region for storing data. The second semiconductor chips receive at least one signal through one or more signal paths that are formed outside the input / output circuit of the first chip.

The invention discloses a system for online real-time monitoring of switch machine indication bar notch width. The system comprises eddy current sensors, collectors, a central monitoring manager and remote monitoring centers. Each eddy current sensor comprises an eddy current probe and an eddy current circuit; the eddy current probe is used for converting a gap between a check post and a notch of a check block into an eddy current signal, and the eddy current signal is processed by the eddy current circuit and output. The collectors are used for collecting data output by the eddy current sensors. The central monitoring managers are connected with the collectors through power cords and are used for receiving data collected by the collectors, in a power line carrier manner. The remote monitoring center is connected with one or multiple central monitoring centers and is used for receiving data transmitted by the central monitoring managers. The system has the advantages that stability and reliability are improved, false alarm rate and false negative rate are zero, the eddy current sensors are higher in reliability, sensitivity, resolution, response speed and interference resistance during long-term operation, and the system is suitable for various switch machines and various application environments.

The invention provides a dimmable light-emitting diode (LED) driving power supply, comprising an electromagnetic-interference resisting unit, a rectifying unit, a current transforming unit, a silicon-controlled unit, a dimming unit and a strobing resisting unit. The strobing resisting unit comprises two diodes, a resistance-capacitance network, a voltage follower, a transistor and a field-effect transistor; the anodes of the two diodes are connected with the silicon-controlled unit, and the cathodes of the two diodes are connected with the drain electrode of the field-effect transistor and are also connected with one input end of the voltage follower through the resistance-capacitance network; the other input end of the voltage follower is connected with the output ends of the diodes; the source electrode of the field-effect transistor is connected with the collector electrode of the triode through the resistance, and the collector of the triode is connected with the ground; signals output by the voltage follower are used for controlling the work state of the triode; and when the conduction angle of the field-effect transistor decreases and is in the wave trough, the triode is fully conducted with the field-effect transistor to maintain the conduction current of the silicon-controlled unit, thereby ensuring the silicon-controlled unit to be in the conduction state and preventing the silicon-controlled unit from being conducted repeatedly to strobe.

The invention discloses a multi-circuit processing-type auto-on-off control system for an illuminating lamp, which is mainly composed of a diode rectifier U, a sound sensor MIC, a transistor VT2, transistor VT3, a transistor VT4, a switch S, a current adjustment circuit, a high resistance filter circuit, a thyristor voltage stabilization circuit, and a rectification and amplification circuit connected to the A output end of a sound sensor MIC, the base electrode of a transistor VT2, and the base electrode of a transistor VT4 respectively. The system can realize the auto-on-off of the illuminating lamp by the ambient brightness change and the sound information in the use range of the illuminating lamp, and filters and amplifies the voltage signal outputted by the sound sensor MIC so as to make the voltage signal more stable, so that the control effect is ensured, the problem that the illuminating lamp is wrongly turned on is effectively solved, and the power resource is greatly saved.

The invention discloses a biologic induction floor, which comprises a tire cloth layer, a biologic induction layer and a back cloth layer, wherein an exciting conducting wire and an induction conducting wire are arranged in the biologic induction layer; cooperated with the biologic induction layer, the floor also comprises a leading wire, a pulse signal generator, a triode, a step-up transformer, a processor and an alarm, wherein the exciting conducting wire is used for forming an induced electric field; the induction conducing wire is located in the induced electric field, and is used for inducing the information that the change of the induced electric field caused by the biologic magnetic field of a human body, and transmitting the induced information of the induced electric field to the processor; the processor is used for receiving the information of the induced electric field that is induced by the induction conducting wire, and judging whether the alarm is needed to be started or not according to the information. By using the biologic induction floor provided by the invention, the self regulation of working parameters can be realized; the biologic induction floor sufficiently adapts to the interference of an external environment; the false alarming and the omitted alarming which are caused by a small animal, a non-living thing and the physioclimate are removed; the application range and the reliability of the biologic induction floor are improved.

The invention discloses a biological induction alarm device and a using method thereof. The device comprises an excitation module used for producing an induced electric field, an induction module used for collecting information about the induced electric field, a control module used for adjusting the intensity of the induced electric field in real time and automatically and judging whether there is a need to raise the alarm, and an alarm module used for sending out an alarm signal. The alarm device is controlled by the control module flexibly and automatically, and thus can adapt to the interference of the external environment. Meanwhile, the interference of small animals to the alarm device is avoided, and the application range and reliability of the alarm device are improved.

The invention discloses a fault monitoring system and a monitoring method for photovoltaic power generation equipment of the Internet of Things, belonging to the field of photovoltaic power generation equipment of the Internet of Things; a fault monitoring system and monitoring method for photovoltaic power generation equipment of the Internet of Things, including: data Acquisition unit, fault monitoring unit, power management unit, power amplification module, signal adjustment unit, data storage module, communication unit, and energy storage unit; the present invention carries out the Internet of Things framework design for the monitoring sensor array, and then judges the communication signal; At the same time, a judgment network is established and input to the system to judge the type of fault; at the same time, the system will increase the signal conversion rate through the power amplifier module, and at the same time perform gain amplification and band-pass filtering on the input voltage, so as to accurately collect multi-channel monitoring in real time Data, the bandwidth of the data output is high, and the balance of the acquisition and output channels is better, which improves the accurate detection and analysis capabilities of the remote monitoring data of photovoltaic power generation.

Disclosed in the invention is a high-impedance filtering type self-on-and-off control system for an illumination lamp. The system is composed of a diode rectifier U, a sound sensor MIC, a triode VT2, a triode VT3, a triode VT4, a switch S, a high-impedance filter circuit, a thyristor voltage-stabilizing switching circuit, and a rectification amplification circuit connected with an A output terminal of the sound sensor MIC, a base electrode of the triode VT2, and a base electrode of the triode VT4. Self starting and closing of an illumination lamp are realized according to environmental brightness changing and sound information in an illumination lamp usage range and the voltage signal outputted by the sound sensor MIC can be filtered and amplified, so that the voltage signal becomes stable, so that the control effect can be ensured, a problem that the illumination lamp is turned on by mistake can be solved, and the power resources can be saved substantially.