摘要:
A power supply voltage switch circuit for selecting a power supply voltage of an integrated circuit according to a first control signal. The power supply voltage switch circuit contains a high voltage selecting module for generating an output voltage according to the higher of a first and a second voltages; a level shifting module electrically connected to the high voltage selecting module to receive the output voltage as power supply, for performing level shifting to a first control signal according to the output voltage; and a selecting switch module electrically connected to the level shifting module for selectively outputting the first or the second voltage as the power supply voltage of the integrated circuit according to the level-shifted first control signal.
摘要:
A circuit and method are disclosed for detecting activation of a switch, such as a mechanical switch, having a first terminal coupled to two or more voltage sources, with each voltage source providing a distinct voltage level representing a logic high level. The circuit includes first circuitry, having an output coupled to the switch for initially placing a first voltage across the switch representative of a logic low level. The circuit further includes second circuitry having an input coupled to the switch for sensing a voltage differential appearing across the switch and an output for indicating whether the voltage appearing across the switch is at any voltage representative of the logic high level, the second circuitry being controlled to selectively eliminate static current drawn by the circuit based upon the value of the output of the second circuitry.
摘要:
A power control circuit is used to control the power supplied to a circuit from a power source. The power control circuit is operable to connect and disconnect the power source from the circuit. The power control circuit connects the power source to the circuit in response to an externally applied magnetic field.
摘要:
An arrangement for use in providing power to an electrical device includes an inverter, a first switch, a second switch, and a bypass controller. The first switch has an open position and a closed position, and is operably coupled to connect the inverter to the electrical device when the first switch is in the closed position. The second switch has an open position and a closed position, and is operably coupled to connect a utility power line source to the electrical device when the second switch is in the closed position. The bypass controller is operable to cause a first transition sequence in which the first switch changes to the open position and subsequently the second switch changes to the closed position. The bypass controller is further operable to: cause continuous actuation of a first indicator when the first switch is in the closed position; cause continuous actuation of a second indicator when the second switch is in the closed position; and cause intermittent actuation of the second indicator during at least a portion of the first transition sequence.
摘要:
A switch unit allows a user to perform an on-and-off switching control of a load which is installed in a certain place without having the user move to the load position and confirm the control status of the load. The switch unit includes a local switching unit having a plurality of buttons each coresponding to each load which is installed in a current place, for directly selecting a load to be switching-controlled, an overall switching unit fabricated in the form of a dial, for selecting a load to be switching-controlled, an overall display unit having a number of LEDs, for displaying the switching control state of each load, an all-off switch which is slightly sunk from the surface of the switch unit, for switching all the loads entirely, and a remote controller signal receiver for receiving a remote controller signal. The switch unit further includes a FND display unit for displaying a load corresponding to the current dial position in the overall switching unit with a numerical symbol. Thus, a power source can be easily, conveniently and efficiently used and managed, to thereby provide users with a considerable power saving effect and conveniences.
摘要:
An inductive proximity switch includes a coil that is supplied with periodic transmitting current pulses. Signals which correspond to voltages induced in the coil after the end of a transmitting current pulse by the decaying current which previously flows in the detected body due to the voltage induced therein by the transmitting current pulse are then processed. The coil is supplied with transmitting current pulses whose direction alternates periodically. The current flow pattern is such that in the first half of a period of the current supplied to the coil, the transmitting current delivered to the coil flows in a first direction and substantially only during a first interval which is shorter than one half of the period of the transmitted pulses. The transmitted current subsequently decays during a time interval and is negligibly small during the remaining time of the first half of the period. In the second half of the period, the transmitting current delivered to the coil flows in a direction opposite to the first one and substantially only during a second interval which is shorter than one half of the period of the transmitted pulses. The transmitted current subsequently decays during a time interval, and is negligibly small during the remaining time of the second half of the period.
摘要:
A magnetic induction, light-emitting display type proximity switch is used for displaying the operation position of a fluid pressure cylinder, float, and the like. The proximity switch is so constructed that an electric circuit including a magnetic induction switch 12a and a light emitting device is enclosed in a molded body made of a light-transparent resin. Since a resin molded construction using a light-transparent resin is used in place of a resin case, the proximity switch is inexpensive and small in size, has high waterproofness and a wide light emission range, and can easily accommodate the diversification of shape.
摘要:
A method for manufacturing a probabilistic switch using multiplicative noise, which can be used in a probabilistic computer is disclosed. The probabilistic switch, in which the probability varies with the initial condition and multiplicative noise intensity, is realized by applying the multiplicative noise whose intensity varies with the state of a nonlinear device to the nonlinear device. When the switch is applied to a probabilistic computer, a complicated problem can be solved rapidly in shorter time.
摘要:
A switch matrix has a set of inputs, a set of outputs, controllable switch elements and a conductor arrangement that is connected to the inputs and outputs and to the controllable switch elements. The controllable switch elements together with the conductor arrangement produce switched electrical connection paths between at least two inputs and an output. The electrical connection paths contain connecting branches that, proceeding from the at least two inputs and the output, meet at a junction point. The connecting branches connected to the at least two inputs have identical electrical lengths up to the junction point.
摘要:
A method of powering a train powerline with a second source including using a local power controller in the trainline to determine the polarity of the power lines which run through the trainline. The local power controller then connects the second power source to the power lines with the determined polarity. Finally, the local power controller powers the power lines with a second power source once the connection of the appropriate polarity has been made.