摘要:
There is described a charge pump circuit capable of minimizing an offset in a phase difference at the time of zero output current, which would otherwise be caused by variations in elements stemming from variations in a manufacturing process. When a first input signal becomes low, a first MOS transistor is brought into conduction, and an electric current "I1" specified by a second MOS transistor flows to an output node as a charge current. When a second input signal becomes low, a third MOS transistor is brought into conduction, and an electric current "I2" specified by a fourth MOS transistor flows to a current mirror circuit. The current mirror circuit withdraws an electric current "I6"--which is the same as that of the electric current "I2"--from the output node as a discharge current. When the charge or discharge current flows to the output node, there is output an electric current of zero. If there is only the charge current, the charge current flows from the output node. In contrast, if there is only the discharge current, the discharge current is withdrawn from the output node.
摘要:
A method for manufacturing microcapsules which prevents capsule particles from adhering to the inner wall surfaces of a wall-film-forming reactor device, thereby to eliminate the possibility that qualities of the microcapsule, such as the heat resisting, solvent resisting and other properties thereof, are deteriorated, and to eliminate the need for an operation to clean substances adhered to the inner wall surfaces of the wall-film-forming reactor device, and therefore, which is able to manufacture microcapsules at a high production efficiency. An emulsified solution is injected into a wall-film-forming reactor device from the lower portion thereof by an emulsified solution feed pump. After completion of a given time of a wall-film-forming reaction in the wall-film-forming reactor device, the emulsified solution is discharged from an overflow outlet formed in the upper portion of the device, and is then cooled by a heat exchanger. A water vapor injection valve is opened at the same time when, or more preferably, before the emulsified solution is injected into the wall-film-forming reactor device, water vapor is blown into a space in the wall-film-forming reactor device to form water drops on the wall surfaces of the space in the wall-film-forming reactor device to cover the space wall surfaces with the drops.
摘要:
A backlight unit, comprising plural linear light sources, and an optical functional sheet, wherein a prism structure having plural prisms is formed on at least one surface of the optical functional sheet, and the values of (Hn−1+Hn)/(An−An−1) are approximately equivalent, wherein, in a brightness distribution graph that expresses a brightness distribution in the optical functional sheet, A1 is a peak site and H1 is a peak height of a first virtual image, A2 is a peak site and H2 is a peak height of a second virtual image adjacent to the first virtual image, . . . , An is a peak site and Hn is a peak height of (n)th virtual image adjacent to (n−1)th virtual image, and these virtual images are derived from the plural linear light sources.
摘要:
In a differential output circuit, a second amplifier has a positive terminal connected to a second fixed potential and a negative terminal to a fifth switch at a first terminal. First and second switches are connected at a point connected to the fifth switch at a second terminal and to a first load. Third and fourth switches are connected at a point connected to the fifth switch at a third terminal and to a second load. The second terminal is connected to the first terminal when the second and third switches turn on. The third terminal is connected to the first terminal when the first and fourth switches turn on.
摘要:
A memory cell includes first and second NMOS transistors and a capacitor that forms a storage node. During write operation, the first transistor is turned ON by a write address select circuit and a data bit is written on the storage node. During read operation, read bit lines are precharged, the second transistor is turned ON by a read address select circuit and the data bit held on the storage node is read. Data is read out without destruction when the storage node is at high logical level. However, if it has a low logical level, then a sense amplifier circuit outputs a low level and a refresh circuit writes a low level on the storage node.
摘要:
A skew adjusting circuit can carry out optimum correction of skew by automatically reading skew amounts of transmission paths with a receiving-side IC, without setting particular skew amounts externally. The skew adjusting circuit includes delay generating circuits, a plurality sets of flip-flops, decoders and selectors. Each delay generating circuit is provided to one of channels, and includes delay elements, each of which has a same delay amount. Each set of the flip-flops is provided to one of the delay generating circuits except for a first delay generating circuit corresponding to a reference channel signal. The flip-flops of each set receive an output of a final delay element of the first delay generating circuit as a clock signal, and receive tap outputs of the associated one of the delay generating circuits. Each decoder receives outputs of the flip-flops of one of the sets of flip-flops. Each selector receives the output of one of the decoders as a control signal, receives tap outputs of one of the delay generating circuits, and outputs a skew corrected signal.
摘要:
An output circuit is constructed such that a load capacitor is not charged by an external power supply but by a first charge storage element within a semiconductor chip that is charged before the load capacitor. The charge stored in the load capacitor is released not directly to the ground but to a second charge storage element within the semiconductor chip and discharged before discharging of the load capacitor.
摘要:
A process for producing microcapsules that have a sufficiently broad particle size distribution to be suitable for use in a pressure measuring films, which process is improved in that it eliminates the need to perform blending and filtering operations while reducing the possible loss in capsule solutions or films or operating efficiency of the capsule applicator. A disperse phase is poured into a disperse medium as the latter is stirred in a preliminary emulsification tank, thereby forming a primary emulsion. The primary emulsion is forced into cylindrical continuous emulsification equipment by means of a metering pump. An emulsion having a broad particle size distribution is produced by lowering stepwise the rotational speed of the inner cylinder of the continuous emulsification equipment in accordance with the following schedule: 3 min and 15 sec at 2900 rpm, 4 min and 15 sec at 2700 rpm, 4 min and 15 sec at 2300 rpm, and 3 min and 15 sec at 2100 rpm. Subsequently, water and a 50% aqueous solution of sodium hydroxide are added to the emulsion in an encapsulation tank 4, where an encapsulation reaction is performed for 3 hours at 72.degree. C. with a stirrer being revolved, thereby producing a capsule solution.
摘要:
It is an object to accurately obtain the period of the horizontal synchronizing signal in the video signal. The number of internal pulses are measured in a predetermined measurement period defined by the horizontal synchronizing signal. It is assumed that the periods of the horizontal synchronizing signal and the internal pulse are denoted as T.sub.H and T.sub.S, and the measurement period is defined by one period of a divided signal NS which is obtained by N-dividing the horizontal synchronizing signal. In this case, the length of the measurement period is N.multidot.T.sub.H. The period of the horizontal synchronizing signal is obtained when the internal pulse is activated K times in the measurement period. After the measurement period is started, the divided signal NS transits between the Kth activation of the internal pulse and the (K+1)th activation, and the measurement period is ended. Accordingly, there is the relation of T.sub.S .multidot.K
摘要:
A voltage detector particularly suitable for a portable type lineman's detector comprises an electrically insulating casing, a metal probe having a rear portion inserted into the casing and a front portion projected from the casing, a field effect transistor, a gate electrode of which is coupled to the rear portion of the probe, a transistor having a base connected to a drain electrode of the field effect transistor, a light emitting diode connected in series with an emitter-collector path of the transistor, a D.C. battery means connected across a series circuit of the emitter-collector path and the light emitting diode and a high input resistor connected across the probe and a first junction point between the light emitting diode and the D.C. battery means, wherein a source electrode of the field effect transistor is connected to a second junction point between the transistor and the light emitting diode. When the front portion of the probe is made contact with a conductor with or without inserting insulating body therebetween a voltage is induced at the gate electrode of the field effect transistor so as to make conductive the transistor and the light emitting diode produces light which can be seen from the external of the casing.