摘要:
An electronic circuit comprising an input powered part and a supply powered part, wherein the input powered is arranged to receive one or more inputs and generate one or more outputs as a function of the or each input, the/or each output controlling the supply powered part of the circuit. The input powered part may be powered substantially or exclusively by its input(s). The input powered may be capable of operating when drawing power of less than 10 nW of power. The input powered part may be capable of operating from an input which rises with no minimum gradient, preferably from 0V. One or more inputs to the input powered part may be connected to a respective sensor, preferably a voltage generating sensor such that the input powered part of the circuit is at least substantially, and preferably exclusively, powered by the/or each sensor.
摘要:
A high voltage training system is provided comprising a high voltage training device in connection with one or more energized lines, and configured to detect a trigger event involving the interaction of a user with the energized lines, modulating/regulating current output in response, and engage one or more of an alert from an alert system, whereby the training system aids in the behavioral modification of the user in a training scenario. A trigger event comprises an event occurring between a user and the energized lines, or contact between a grounding conductor and the energized lines. An alert comprises one or more of an audible alarm, a visual indicator of alarm, or an electrical current (of less than 20 mA) emitted from the energized lines and contacted with the skin of the trainee engaged with the training system.
摘要翻译:提供了一种高电压训练系统,其包括与一条或多条激励线路相关的高电压训练设备,并且被配置为检测涉及用户与激励线路的相互作用的触发事件,调制/ 作为响应调节当前输出,并且参与警报系统的一个或多个警报,由此训练系统在训练场景中帮助用户的行为修改。 触发事件包括在用户与通电线路之间发生的事件,或接地导体与通电线路之间的接触。 警报包括一个或多个声音警报,警报的视觉指示器或从通电线路发出并与接受培训系统培训的受训者皮肤接触的电流(小于20 mA)。 p >
摘要:
Systems and techniques detecting a reverse current are disclosed. An apparatus comprises a switching circuit coupled to a load and a reference node. The switching circuit may be capable of conducting a reverse current from the reference node to the load when a voltage at the load is lower than a voltage at the reference node. A voltage source has a first terminal coupled to the load, a second terminal configured to follow a voltage at the load, and produces a voltage proportional to a voltage drop across the switching circuit. A comparator circuit is coupled to compare a voltage at the second terminal of the voltage source to the voltage at the reference node and configured to indicate when the reverse current has a magnitude greater than a predetermined threshold.
摘要:
Die vorliegende Erfindung betrifft eine Vorrichtung (1) zum ortsabhängigen Konfigurieren einer mit der Vorrichtung gekoppelten Einrichtung (2). Die Vorrichtung umfasst einen ersten und zweiten Stromversorgungsanschluss (3, 4), einen Ortungsanschluss (3) zur Ortung der Vorrichtung anhand einer am Ortungsanschluss anliegenden Spannung und eine Konfigurationseinrichtung (5) zur Konfiguration der Einrichtung basierend auf der am Ortungsanschluss anliegenden Spannung. Der erste Stromversorgunganschluss (3) und der Ortungsanschluss (3) werden dabei durch denselben Anschluss (3) gebildet.
摘要:
A brown out detector (BOD), configured to provide a BOD reset in the event of a brown out event, is provided. The BOD includes means for tracking a reference voltage that is updated through duty cycling schemes so as to reduce power consumption, as well as means for detecting a falling flank of a supply voltage so as to optimize response times. More specifically, the BOD includes at least one track module, at least one sample module, at least one detector module and at least one comparator. The comparator is configured to compare a duty cycled tracked reference voltage with a duty cycled sampled reference voltage and to output a BOD reset if the tracked reference voltage is less than the sampled reference voltage. The comparator is further capable of exhibiting improved response times when a boost current is received. The boost current is provided by the detector module when the supply voltage falls beyond a predetermined threshold.
摘要:
A power failure detection circuit (4) comprises an input port (5) for applying a voltage signal to be monitored; a voltage rate of change detecting circuit (6-15) connected to said input port (5) for deriving a signal representative of a rate of change of said voltage signal, and a first comparator (14-16) for comparing said representative signal to a predetermined limit and for outputting a first power failure signal if said representative signal exceeds a predetermined limit.
摘要:
Voltage reversal in fuel cell stacks may be detected and/or prevented by monitoring each cell or small groups of cells in the stack for low voltage conditions. An improved cell voltage monitor is constructed using a plurality of voltage monitoring units in which each unit comprises a heating resistor, a rectifier in series therewith, and a sensing thermistor in thermal communication with the heating resistor. The heating resistor is electrically-connected across a cell or cells and heats the associated sensing thermistor in accordance with the voltage of the cell(s). Since the resistance of the sensing thermistor is indicative of its temperature and hence also of voltage of the cell(s), the sensing thermistor resistance can be used to signal a low voltage condition.
摘要:
A reverse current limited regulator for coupling an input node (NODE A) and an output node (NODE B) for limiting a reverse current through a pass transistor (P1) which connects the input and output nodes. The regulator comprises a voltage comparator (N1, N2, R1) which compares the voltages at the input and output nodes and biasing circuitry (P4, P5) which is controlled by the outputs of the comparator to bias the substrate of the pass transistor with one of the two voltages.