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Matches 651 - 700 out of 4,460

Document Document Title
JP2006222524A
To provide an oscillation circuit employing resistors and capacitors that can reduce fluctuations in an oscillated frequency even when a power supply voltage is fluctuated.While a resistor circuit supplied with a first constant current g...  
JP2006217642A
To provide a clock generator and an associated method for generating a clock signal, for driving a microprocessor or other digital circuit at relatively high frequencies, while reducing the spectral amplitude of EMI components as measure...  
JPWO2005001938A1
In an integrated circuit, an object of the present invention is to reduce the current consumption in the boosting voltage generation circuit at the time of standby. The pump circuit which the integrated circuit by the present invention c...  
JP2006197570A
To provide a spectrum spreading clock generation apparatus in which an effect of frequency spreading is improved approximately without increasing circuit costs by deforming a triangular wave used for frequency modulation with a simple me...  
JP2006191598A
To provide the method for producing a band-limited digital signal.In the present invention, a digital sample string is produced which corresponds to an analog waveform having a basic frequency and discontinuous point between any samples....  
JP2006517367A
It is an electronic D class amplifier using the abnormal conditions of inclination of the chopping-sea career reference signal proportional to the differential coefficient of an input signal which essentially has a low strain. In order t...  
JP2006517075A
The signal generator for generating a square wave analog voltage output signal is equipped with DAC (12) on chip which outputs an analog voltage signal to an output terminal (5). The [on chip / the 1st and] -- 2 programmable register (9,...  
JP2006166395A
To provide a clock generation circuit and a display device having the same, wherein a power consumption can be reduced.The clock generation circuit contains a first voltage generator, a second voltage generator, and an intermediate volta...  
JP3776612B2
To provide a semiconductor integrated circuit constituting a switching regulator capable of avoiding characteristic deficiency due to production variation of elements such as incorporated resistors and capacitors. A peak detection circui...  
JP2006113580A
To provide an amplifier which is designed to generate rectangular voltage signals through soft switching under a capacitive load (Cp).The amplifier has a half bridge structure, which is made of two switches (M1 and M2) connected between ...  
JP3770008B2
To provide a semiconductor power converter which can suppress the peak voltage at switching operation, without having to use a snubber circuit. A voltage applying means, which applies a forward bias voltage and a reverse bias voltage to ...  
JP3767270B2
To prevent a driving waveform from suddenly changing due to cumulative errors by digital/analog converting specific upper bits among the cumulative result of a plurality of accumulated bits and outputting as an analog signal. Driving wav...  
JP3768317B2
To reduce switching loss by providing a switch for cyclically operating a DC voltage source and two coil parts connected to the base of a switching transistor through a coil provided with a tap and wound in opposite directions and ground...  
JP2006100318A
To provide a current output drive circuit capable of realizing various types of flickering pattern by a relatively small scale program, and to provide an electronic apparatus.Based on reference current set data stored in a control regist...  
JP2006510309A
It is constituted so that two voltage levels used in order that a R*C oscillator (200) may control vibration may be changed, and change of the vibrational frequency by temperature is made into the minimum. The 2nd resistor (R2) that has ...  
JP2006080661A
To provide a signal generating method employing a counter circuit, an analog switch and a voltage output circuit unit to simply generate a step voltage with a downsized hardware scale.The signal generating method adopts a method wherein ...  
JP2006080836A
To provide a charging and discharging circuit which reduces an influence given by a parasitic capacity.The charging and discharging circuit which performs charging and discharging in a capacity element includes a current mirror circuit h...  
JP2006074099A
To provide a PWM modulation circuit capable of preventing increase in a mounting area of a class D amplifier, and a class D amplifier using the PWM modulation circuit.This PWM modulation circuit uses a step-like wave to apply PWM modulat...  
JP2006050310A
To provide a multiple phase triangle wave oscillation circuit which can oscillate and output multiple phase triangle waves in relation of waveforms, wave peak values, and phases as specified, and stably and surely oscillates and outputs ...  
JP2006505212A
A capacitive charge pump (111) can be used for a device like a phase locked loop (PLL) (105), for example. A charge pump contains at least one capacitor (211, 217) in a charge course and an electric discharge course, and restricts the qu...  
JP2006505164A
The transmitter (4) for the signal of the controlled form on a communication line (1) to be switched is equipped with the signal generator containing the capacitor (19) which generates the signal which should be impressed to this communi...  
JP2006020177A
To eliminate the need for a PLL circuit while ensuring a robust performance for variation in a power source voltage, or a quality of a triangular wave, in the triangular wave generating circuit of a class D amplifier.A constant current I...  
JP2005538609A
An oscillating circuit (60) has a comparison circuit (68), a monitor, and a control circuit (80). A comparator (68) supplies a periodic output signal. A monitor and a control circuit (80) control the deflection of periodic output voltage...  
JP2005338842A
To resolve the problem of heat generation in a switching circuit operated in a reset period of a plasma display panel and to reduce a manufacturing cost.A scan driving part includes a set-up pulse supply part 210 for supplying a reset pu...  
JP3720737B2
To provide a clock signal generator which generates clock signal by a method where the clock signal acquired from the most significant bit of a DT oscillator comprises a minimum phase jitter, with reference to a DTO output signal. The cl...  
JP3721360B2  
JP2005328444A
To provide a stable signal generator capable of easily and continuously changing oscillation frequency using a micro computer or the like instead of changing oscillation frequency, by switching components of the signal generator to gener...  
JP2005318481A
To provide a multi-phase carrier generator and multi-phase carrier generation method in which triangular wave carriers of respective phases can be highly accurately obtained by simple means.One term phase of a triangular wave carrier is ...  
JP3711860B2
To provide an output circuit that maintains a high maximum output available voltage and reduces the power consumption. A charging/discharging circuit 36 charges electric charges to a capacitor 47, across which a terminal voltage Vc being...  
JP2005292773A
To provide a liquid crystal display driving provided with a driver of low power consumption.The driving device receives input voltage at an input terminal and generates an output voltage at the output terminal and is provided with an out...  
JP3697678B2
To provide a V/F conversion circuit where a control range of an input voltage is traced with the input voltage up to a higher frequency. An I/F conversion circuit is made up of a charging circuit that charges a capacitor with a current d...  
JP2005244758A
To provide an A/D conversion apparatus in which a conversion time is shortened while maintaining conversion accuracy.A voltage/time conversion circuit 5 compares a ramp waveform voltage V1 that increases with a fixed inclination, with a ...  
JP2005218117A
To provide a lamp signal generating circuit that has low power consumption and a high slew rate.This lamp signal generating circuit is provided with a lamp signal generator for generating a lamp signal, a buffer for receiving an output s...  
JP2005210477A
To provide a differential type operational amplifier circuit capable of obtaining wide band characteristics and a high DC gain, and performing an operation at a low power supply voltage.A signal path from n-channel transistors M1, M4 to ...  
JP2005210675A
To provide an apparatus and method for preventing one or more problems caused by restrictions and defects of conventional technologies.The present invention provides a circuit for generating a current that comprises a first current gener...  
JP2005198238A
To provide a load control circuit capable of downsizing an entire system.An LED triangular wave generation circuit 25 comprises a charging/discharging control circuit 28 and a triangular wave potential monitor circuit 29. The charging/di...  
JP3666408B2
To provide a driver circuit capable of compensating for losses of any transmission line by adding square waves or triangular waves to original waveforms. The driver device comprises a signal generator 1, a register 2 for storing the puls...  
JP2005160128A
To reduce noise through spread spectrum by combining general purpose ICs without requiring any special circuit or component.The switching signal modulation circuit comprises a switching control circuit 9 capable of adjusting the on time ...  
JP3659024B2
To remove mutual interference between devices by switching the operation of a count-up operation with the matching signal of a first digital comparator to a count-down operation with the matching signal of a second digital comparator, ge...  
JP2005151791A
To provide a pulse width modulator adapted to receive feed back voltage and reference voltage.This pulse width modulator includes a triangular wave generator capable of regulating amplitude, an error signal generator, a pulse signal gene...  
JP2005151528A
To provide a simple inexpensive oscillator of an integrated circuit, and its method, which has frequency stability improved over a selected frequency range, by reducing an influence of process changes and temperature changes on a base cu...  
JP2005130432A
To provide a ramp voltage generating apparatus, capable of generating a plurality of ramp voltages whose phases are shifted from each other, using a simple circuit configuration.The ramp voltage generating apparatus includes a ramp volta...  
JP2005130245A
To shorten the delay time in the change of an output voltage with respect to a turn-off signal, when a source follower constituted of an n-channel MOS transistor is turned off.When the output voltage Vo is substantially equal to a power ...  
JP3647147B2
To provide a voltage controlled oscillation circuit capable of generating a clock signal with a frequency not susceptible to dispersion in manufacture. An output N1 from an operational amplifier AMP 1 swings between constant voltages VRH...  
JP2005117880A
To provide a non-linear load boosting circuit that can adjust the amplitude of triangular waves, based on the difference between a feedback voltage and a reference one, thereby to sufficiently shorten the time for reaching a steady state...  
JP2005117140A
To provide an oscillation circuit capable of generating an oscillation signal with a long period without the need for increasing the capacitance of a capacitor.Both terminals across the capacitor 3 are used for charging/discharging. That...  
JP2005065029A
To provide a semiconductor device which is provided with a power device and its driving circuit and can prevent a malfunction of the driving circuit with high accuracy at the time of switching the power device.This semiconductor device i...  
JP3625296B2  
JP3620003B2  
JP3620338B2  

Matches 651 - 700 out of 4,460