摘要:
Disclosed is a power control circuit utilizable in an electronic device. The power control circuit includes a power on/off switch having first and second switches; a capacitive element connected to a power section via the first switch; a first switching element connected to the power section via the second switch; a microcomputer for controlling power on/off of the first switching element; and a second switching element provided between the power section and each of the microcomputer and a predetermined circuit block. The microcomputer is programmed to control the power control circuit such that, when supplying power to the microcomputer, the microcomputer holds a power-on state of the first switching element before the first switching element is turned off because of the discharge of the electric charge, and then, when the microcomputer detects that the predetermined circuit block has not operated for a given period of time, the microcomputer turns off the first switching element.
摘要:
A timer control circuit includes timers that perform count operations. A signal selection circuit selectively passes underflow signals supplied from the timers, based on control signals. A flip-flop is supplied with an output of the signal selection circuit section as a toggle signal.
摘要:
An apparatus for rotationally adjusting a cam, that includes an adjustment pinion having a number of missing teeth that couple to an integral gear formed on a rotatable cam. The adjustment pinion is used to manually adjust the angular position of the rotatable cam relative to the rotatable cam's axis of rotation. When the missing teeth of the adjustment pinion disengage from the gear integral to the cam, rotation of the adjustment pinion ceases. The adjustment apparatus may be readily incorporated into a programmer/timer.
摘要:
The present invention provides a method and product-by-method of integrating a bias resistor in circuit with a bottom electrode of a micro-electromechanical switch on a silicon substrate. The resistor and bottom electrode are formed simultaneously by first sequentially depositing a layer of a resistor material (320), a hard mask material (330) and a metal material (340) on a silicon substrate forming a stack. The bottom electrode and resistor lengths are subsequently patterned and etched (350) followed by a second etching (360) process to remove the hard mask and metal materials from the defined resistor length. Finally, in a preferred embodiment, the bottom electrode and resistor structure is encapsulated with a layer of dielectric which is patterned and etched (370) to correspond to the defined bottom electrode and resistor.
摘要:
A self-contained pneumatic switch operating system for operating a conventional toggle switch is disclosed which includes a source of compressed air, a switch positioner including a linear pneumatic operator connected to the source of compressed air and to a pair of spaced switch operating members for operating a toggle switch situated therebetween. A housing for containing components of the switch operating system including a base member adapted to replace a conventional wall switch plate and a controller for controlling the operation of the switch positioner and a self-contained power supply for operating the switch positioner and the controller are also provided.
摘要:
A programmer/timer having a cam disk that includes concentric cam tracks having multiple working heights formed on one face thereof. The programmer/timer further includes a plate assembly that includes multiple cam followers for engaging cam disk and a plurality of single pole double throw switches configured for multiple working heights disposed for actuation by cam followers.
摘要:
A microprocessor to control and to prevent failure in mechanisms, particularly those that perform timed intervals of work. The microprocessor controls the length of each interval of work, and limits the mechanism to perform only a predetermined number of work intervals, after which it deactivates the device, allowing the mechanism to reactivate only after entry of a coded number or operation of a key switch. The microprocessor monitors all functions of the mechanism and includes a first failsafe circuit that shuts down the mechanism in the event of malfunction. A second failsafe circuit monitors the first failsafe circuit, and bypasses it to shut down the mechanism in the event of malfunction in the first failsafe circuit.
摘要:
A manual timer switching device has a housing, a program carrier, and a manually rotatable knob. The housing contains a timer switch. The program carrier is rotatably mounted to a front side of the housing, concentric with the housing. The knob is seated coaxially with the program carrier and is rotatable relative to the program carrier to manually control the timer switch via a mechanical connection. The knob has a single ended, bar-shaped operating handle on a front face thereof. The program carrier has a central opening through which the operating handle is seated. The rotating knob can also have a radially extending surface finish or markings near its peripheral circumferential region.
摘要:
A switch operation processing apparatus for use with a manually operable switch and a controlled device, for controlling the controlled device depending on switch operation of the manually operable switch. The apparatus detects any occurrence of switch operation of the manually operable switch, determines when a predefined temporal pattern of switch operation of the manually operable switch occurs and controls the controlled device depending on the determination. The apparatus may reduce or eliminate any inconvenience which otherwise could be caused by an unintentional, inadvertent operation of the manually operable switch made by the operator, Also, the apparatus may achieve bidirectional adjustment of a controlled device through manual operation of a simple electric switch, such as a push button switch.