摘要:
A timing generator having no dead time and capable of altering a timing at any time. A rough timing pulse generating means suitably specifies one of a plurality of input clock pulses to generate a rough timing pulse for a desired timing. A timing vernier delays the rough timing pulse for a suitable delay time to generate a minute timing pulse. In a compensating circuit, the minute timing pulse is input to a delay circuit having one input terminal and plural output terminals, and one of the outputs at the output terminals for delay is selected by a multiplexer. When the multiplexer selects an output whose delay time is not zero, a next pulse can be input from the timing vernier to the dead time compensating circuit so that no dead time occurs.
摘要:
A current/charge-voltage convert circuit having an operational amplifier and a capacitor connected between the input terminal and the output terminal of the operational amplifier, this current/charge-voltage convert circuit characterized in that it comprises a first pair of diodes connected in mutually opposing directions to this input terminal, a second pair of diodes connected in the opposite direction of this first pair of diodes to the respective other terminal of this first pair of diodes, a pair of current sources connected in mutually opposing directions to the respective other terminal of this first pair of diodes, a pair of switches connected to the respective other terminal of this first pair of diodes, and resistors connected between the respective other terminal of this second pair of diodes.
摘要:
A timing adjustment circuit consists of a delay circuit made from n delay elements (n is an integer of 2 or more) connected in series, with which an input signal p0 is delayed in succession by each delay element, in order to generate respective delay-signals p1, . . . , pn, and a selection circuit with which any one of input signals p0 and aforementioned respective delay signals p1, . . . , pn are selected by n+1 number of selection signals s0, . . . , sn. The selection circuit comprises a selection-signal generation circuit, a selection gate circuit, a selection-signal holding circuit and a delay-signal holding circuit. The selection-signal generation circuit generates selection signals s0, . . . , sn before input signal p0 is input. The selection-signal holding circuit holds selection-signals s0, . . . , sn from the selection-signal generation circuit until the active edge of p0, . . . , pn reaches each selection gate. The delay-signal holding circuit comprises n delay-signal holding elements. When the active edge has arrived at each of the selection gates, each is held in an output state until the input to the selection gates becomes inactive, even if the selection signals changes.
摘要:
A print circuit board includes: a first surface; a guard plane disposed on an inner layer; a high insulated region formed on the first surface of the board so as to be opposed to the guard plane, the high insulated region being substantially surrounded by one or more first guard patterns; and a quasi-high insulated region formed on the first surface of the board so as to be disposed adjacent to the high insulated region. The quasi-high insulated region is substantially surrounded by at least a part of the one or more first guard patterns and by one or more second guard patterns, in which the one or more first guard patterns and the one or more second guard patterns are each formed by forming one or more trenches in the first surface of the board so as to expose the guard plane on a bottom surface of the trenches.
摘要:
A method for optimizing a pattern generation program used in a signal generator comprising a generator for generating a signal pattern based on a pattern generation program, a memory for storing the signal pattern, and an output for outputting on a predetermined cycle the signal pattern stored by the memory, this optimizing method comprising an evaluation step for evaluating for each command of the pattern generation program whether it is necessary to develop the command in question of the program and a development step for developing the command.
摘要:
A food preparation plate is replaceable and engagement means for retaining the food preparation plate are present between the food preparation plate and a retaining part. The food preparation plate can move in translation in a direction perpendicular to a plane constituted by the retaining part. Two places on the back side of the food preparation plate that is retained in the retaining part can be simultaneously pressed in the direction of the front side by the digits of different hands; and by simultaneously pressing those two places with digits of different hands, the food preparation plate is moved in translation in the direction of the front side thereof, so as to release the engagement means and allow the food preparation plate to be detached.
摘要:
A breather chamber structure of an internal combustion engine in which condensation of vapor within the breather chamber is prevented, the number of required parts is small, the space efficiency is superior and enlargement of the whole engine can be avoided is provided. In an internal combustion engine having auxiliary machinery attached to a side wall of a cylinder block (3) by means of an auxiliary machinery bracket (10), a breather chamber (20) is formed by the side wall of the cylinder block (3) and the auxiliary machinery bracket (10) between the side wall and the bracket, and a cooling water passage (40), (41) is formed on at least one of the side wall of the cylinder block (3) and the auxiliary machinery bracket (10) swelling in the breather chamber (20).
摘要:
A system and method for compensating in real time the dynamic power variation of a computer chip containing CMOS devices is provided. The present invention functions to control the temperature variations on the chip thus eliminating the drift to analog signals associated with CMOS devices. The present invention controls the temperature with the use of a compensation heater located on the CMOS chip. The compensation heater is driven by a plurality of signals which act in harmony with one another to control the temperature on the chip when it becomes unstable. The system and method includes driving the compensation heater with a maximum dynamic power value to effectively maintain the temperature on the chip, evaluating the chip for temperature fluctuation, and compensating for the temperature fluctuation by driving the compensation heater with at least one compensation power value.
摘要:
A method for optimizing a pattern generation program used in a signal generator comprising a generator for generating a signal pattern based on a pattern generation program, a memory for storing the signal pattern, and an output for outputting on a predetermined cycle the signal pattern stored by the memory, this optimizing method comprising an evaluation step for evaluating for each command of the pattern generation program whether it is necessary to develop the command in question of the program and a development step for developing the command.
摘要:
A current/charge-voltage convert circuit having an operational amplifier and a capacitor connected between the input terminal and the output terminal of the operational amplifier, this current/charge-voltage convert circuit characterized in that it comprises a first pair of diodes connected in mutually opposing directions to this input terminal, a second pair of diodes connected in the opposite direction of this first pair of diodes to the respective other terminal of this first pair of diodes, a pair of current sources connected in mutually opposing directions to the respective other terminal of this first pair of diodes, a pair of switches connected to the respective other terminal of this first pair of diodes, and resistors connected between the respective other terminal of this second pair of diodes.