摘要:
A shutter control device for a camera includes a control arrangement for controlling the opening and closing of the shutter as a function of an exposure value and a diaphragm value. The control arrangement stores values corresponding to a predetermined diaphragm setting, and employs the parameters of the predetermined setting and the exposure value and diaphragm value in order to determine the opening time of the shutter. In another arrangement, the control arrangement determines the effective exposure time as a function of the brightness of the object, distance to the object and a diaphragm, and employs this effective exposure time and a stored correction factor to determine the actual exposure time.
摘要:
A semiconductor device capable of setting a large number of operation modes with a single external terminal, while ensuring a stable operation mode regardless of fluctuations in the power supply voltage. The semiconductor device includes an internal circuit having a plurality of modes, an external terminal, an external resistor connected to the external terminal, and a current detection circuit for generating a setting signal based on the current flowing through the external resistor. The internal circuit includes a mode setting circuit which sets one of the operation modes of the internal circuit in response to the setting signal.
摘要:
In a continuously variable transmission yokes for supporting pivot shafts provided on the end portions of trunnions are supported for displacement only in the axial direction of the pivot shafts and oscillation in a predetermined direction, relative to a support post fixed to the inner surface of a casing. By this construction, the contact pressure between the peripheral surfaces of a pair of power rollers supported on a pair of trunnions supported by the yokes and the inner sides of input side and output side discs is made uniform.
摘要:
A switching circuit for achieving the amplifying and muting operations is disclosed. The switching circuit operates as a non-inverting feedback amplifier whenever the circuit performs either amplification or muting. The non-inverting input port of the amplifier is always kept free to receive a given signal. An impedance element is connected to the output terminal of the circuit in either the amplifying or muting operation.
摘要:
A spread spectrum clock generation circuit capable of further reducing the electromagnetic wave radiation with a simple configuration has been disclosed and, particularly in a spread spectrum clock generation circuit using a current control oscillator (ICO), a differential signal to which a spread spectrum modulation signal, the period or amplitude of which changes, is added is generated, and the differential signal is applied to the ICO and a clock is generated.
摘要:
A spread spectrum clock generation circuit capable of further reducing the electromagnetic wave radiation with a simple configuration has been disclosed and, particularly in a spread spectrum clock generation circuit using a current control oscillator (ICO), a differential signal to which a spread spectrum modulation signal, the period or amplitude of which changes, is added is generated, and the differential signal is applied to the ICO and a clock is generated.
摘要:
A continuously variable transmission apparatus has clutch device having a low speed clutch; a high speed clutch; and, a controller switching the transmission state into any one of a low speed mode and a high speed mode by connecting any one of the clutches, wherein timings for signaling by the controller for switching the connected and disconnected states of the clutches vary according to the switching directions of the low speed and high speed modes; and, a timing for signaling for connecting the low speed clutch with respect to the moment for signaling for cutting off the connection of the high speed clutch in order to switch the high speed mode over to the low speed mode is set earlier than a timing for signaling for connecting the high speed clutch with respect to the moment for signaling for cutting off the connection of the low speed clutch.
摘要:
In the toroidal type continuously variable transmission system 100 incorporating a power roller bearing 11 therein, race grooves 15 and 16 respectively formed in the inner and outer races 35 and 13 of the power roller bearing 11 are respectively structured in such a manner as to have an arc-shaped cross section, and the radii of curvatures of the arc-shaped cross sections of race grooves 15 and 16 are set in the range of 52% to 59% of diameter of a rolling ball body which can roll on these race grooves, thereby being able not only to restrict an increase in dynamic torque of the power roller bearing but also to improve life of the power roller bearing.
摘要:
A toroidal type continuous variable transmission system to be used as a transmission of an automobile comprises: an input shaft rotatably actuated by means of a drive source; an output shaft for acquiring power stemming from rotation of the input shaft; a variator which is interposed between the input and output shafts and includes a pair of input disks which rotate on the basis of rotation of the input shaft, a pair of output disks which are provided in a coaxial relationship with the input disks and rotate in synchronous with each other, and power rollers which are provided between the input and output disks while remaining in contact with the disks and which rotate at an angle; a planetary gear mechanism which is interposed between the input and output shafts and includes a sun gear, a ring gear provided around the sun gear, a plurality of planetary gears which are provided between the sun gear and the ring gear so as to be rotatable, and carriers supporting the planet gears; a pressing mechanism which presses the input or output disk against the output or input disk by way of the power rollers; a first power transmission mechanism which transmits the rotation of the output disks to the planetary gear mechanism; and a second power transmission mechanism which transmits the rotation of the input shaft to the planetary gear mechanism.
摘要:
The amounts of displacement of trunnions installed in first and second cavities are made equal to each other irrespective of the amount of resilient deformation. Also, if the worst should happen, the stability of the running of an automobile is secured. The supply and discharge of pressure oil to first and second actuators for displacing the trunnions installed in the first and second cavities are effected by first and second control valves independent of each other. A value is included for controlling so that the difference between oil pressure fed into the first actuator and oil pressure fed into the second actuator may not become great.