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Document Title 
JP4355658B2 

JP2009246595A 
To display whether a triangular wave or trapezoidal wave, and a reference clock signal are synchronized in phase.A triangular wavetrapezoid wave generating circuit includes a waveform control circuit which switches between charging and ...

JP2009246594A 
To widen tuning ranges of a triangular wave and a trapezoidal wave for a reference clock, and to generate the triangular wave and trapezoidal wave with the same circuit constitution.A triangular wave generating circuit includes a wavefor...

JP4348241B2 
A load control circuit enabling miniaturization of a brightness adjustment system. The load control circuit includes a variable resistor for generating a reference potential. A first duty signal generation circuit connected to the variab...

JP2009240089A 
To intermittently drive a motor at such frequency as not depends on amplitude of an oscillation voltage that changes in triangular wave.A motor drive circuit includes a triangular wave generating circuit which charges/discharges a capaci...

JP4341914B2 

JP2009232059A 
To configure a triangular wave oscillation circuit with a smaller number of circuit elements.In the configuration that a charging operation and a discharging operation to a capacitor 22 are switched by the output signals of a comparator ...

JP2009212846A 
To provide a switching circuit and a broken line waveform optimization method which reduce only harmonic components of a required band without reducing harmonic components except the required ones.The switching circuit 1 driving a switch...

JP2009171449A 
To provide a PWM signal generating circuit advantageous for reducing a chip area by enabling an inverted PWM signal to be generated, without providing an inverter circuit, even in singleend input constitution.A PWM signal generating cir...

JP2009171293A 
To provide a standard pulse generator and standard pulse generating method capable of generating a highspeed and stable rising waveform to be used for calibrating a waveform measuring instrument.A standard pulse generator includes: a ch...

JP2009165012A 
To prevent oscillation at an unwanted frequency and to materialize stable oscillation at an expected frequency.An oscillation circuit 100 comprises an oscillation element 110, an inverting amplifier 120 and a status holding circuit 130. ...

JPWO2009090703A 
A lamp wave output circuit is provided with lamp wave generating circuit 1 which generates a lamp wave, and low pass filter 2 with variable cutoff frequency which receives a lamp wave. Low pass filter 2 operates on the 1st cutoff frequen...

JP2009159344A 
To provide an oscillation circuit capable of achieving the reduction of a circuit scale and the reduction of current consumption.The oscillation circuit includes: amplifiers (11 to 15) for generating a charging/discharging current of a c...

JP4287884B2 

JP2009118362A 
To improve accuracy of an A/D converter by a voltage to frequency conversion method.The A/D converter includes a voltage to frequency conversion circuit having a voltage controlled oscillator 24 with two equivalent saw tooth wave generat...

JP2009520426A 
An electronic circuit is provided with the delay circuit which has the chain of the sawtooth wave delay stage (10 a*d) combined with the form of the loop, for example, forms an oscillator. Each stage is provided with the current abnorma...

JP2009111839A 
To provide a triangular wave generator capable of setting an upperlimit voltage and a lowerlimit voltage of a triangular wave without rapidly charging/discharging a capacitor while being synchronized to an external synchronizing signal...

JP2009100352A 
To reduce the distortions of the output signal of a digital amplifier by eliminating the distortions of triangular wave signal.An integrating part INT of a triangular wave signal generator TRI is provided with a fully differential amplif...

JP2009094568A 
To generate triangular waves of which a waveheight value is adjusted to a desired value.A triangular wave generation circuit comprises: a comparator CMP1 for comparing a triangular wave signal TRI taken out of the terminal of a capacito...

JP2009094584A 
To provide a triangular wave generation circuit that is less affected by variations in a supply voltage and has small variations in the center level of triangular wave signals when the supply voltage varies.The triangular wave generation...

JP2009094567A 
To provide a triangular wave synchronization generation circuit capable of generating an identical waveheight value by synchronizing spectrumspread triangular waves between a master and a slave.The triangular wave synchronization gener...

JPWO2007046363A1 
レベル反転禁止回路としての第１、第２の短
絡用ＦＥＴ５５，５６によって、出力信号Ｓ
４がレベル反転した時点からその反転した状
態が維持されレベル反転が禁止され、そ...

JP2009515377A 
A high dynamic range sensitive sensor element or array is provided which uses phase domain integration techniques to accurately capture high and low intensity images. The sensor element of the present invention is not limited by dynamic ...

JP4237618B2 
A combined gate drive and current sensing circuit for a 3phase AC PWM inverter system which uses gate signal information to reconstruct complete motor phase current for providing a linear motor phase current feedback signal.

JP2009044646A 
To suppress the increase of the charging/discharging current of the capacitor of a voltagecontrolled oscillation circuit even when increasing its oscillation frequency.The voltagecontrolled oscillation circuit for oscillating the charg...

JP4229804B2 

JP2009021912A 
To provide a CR oscillation circuit of an accurate oscillation frequency even if a threshold voltage of an MOS transistor (hereinafter simply referred to as MOS by omitting transistor) varies.A resistance 1 and a capacitor 2 are connecte...

JP2009017556A 
To provide a frequencyvariable oscillator that varies, even if the frequency of input signal is varied, the frequency of an oscillation signal, according to the varied frequency of the input signal.A frequencyvariable oscillator includ...

JP4209924B2 

JP4204655B2 
A microcomputer capable of outputting pulses in which an arithmetic processing unit outputs pulse control data according to the receiving of a trigger signal transferred from a trigger circuit, a data latch circuit latches each kind of p...

JP2008306356A 
To generate twophase triangular waves whose frequencies and peak values are the same, and whose phases are mutually reverse.Triangular wave oscillation circuits 102A, 102B generate two waves A and B, which are of reverse phases, respect...

JP2008304426A 
To provide an optional waveform generator and semiconductor test apparatus that can shorten the test time and acquire analog voltage where error voltage by divergence from the linearity of an output signal of a D/A converter is accuratel...

JP2008301042A 
To provide a selfoscillation type oscillation circuit capable of obtaining a more accurate oscillation frequency.The selfoscillation type oscillation circuit includes: a ring oscillator (1) whose oscillation frequency is varied in acco...

JP4194451B2 

JP2008544683A 
The integration means (SI) which was constituted so that a false sine signal generation device (D) might generate the differential triangular signal (TS) which has i selection constant output amplitude from an input differential rectangl...

JP2008295012A 
To provide a multilevel voltage driving device having lower cost and lower electricity consumption.The multilevel voltage driving device has an electricity level converter 11, which includes an AC signal input terminal for inputting an A...

JP2008252414A 
To provide an oscillation circuit which has high oscillation frequency accuracy.The oscillation circuit 1 has a reference resistor RE1 for generating reference current; an integrated circuit 2 provided separately from the reference resis...

JP2008219155A 
To provide a PWM signal generation circuit which can generate a highresolution PWM signal with high precision.The PWM signal generation circuit comprises a circuit generating a digital PWM signal based on a clock signal CLK, a triangle ...

JP2008205749A 
To provide a "pulse signal output circuit" which can prevent the generation of a harmonic component which leads EMC (Electro Magnetic Compatibility) interference from a wiring pattern or a signal line of the pulse signal output circuit o...

JP2008205901A 
To provide a triangular wave generation circuit which enables reduction of a time lag from an input of a discharge start signal to an actual discharge start.A discharge and charge circuit of a triangular wave oscillation circuit has: a f...

JP2008206128A 
To achieve proper pulse width modulation by making a carrier frequency almost constant.This pulse width modulation circuit is provided with a voltage control circuit for changing a voltage in a first integration circuit in a first period...

JP2008199095A 
To output a stable oscillation frequency without being influenced by dispersion in process variation or changes in external environments.The semiconductor integrated circuit device 30 is provided with a CR oscillation circuit 1 and a ref...

JP4140534B2 

JP4139447B2 
A circuit (10) for generating a voltage ramp signal (VRAMP) having minimum amplitude variation over a large frequency range has been provided. The circuit includes a comparator (40) for comparing a voltage across a ramp capacitor (32) wi...

JP2008193689A 
To provide a waveform generator which is made quicker and more efficient by a simple control interface.A method and apparatus for generating a desired pulse waveform includes dividing the desired pulse waveform into a plurality of line s...

JP3144043U 
[Subject] A circuit which does not become stairlike but obtains continuous detection reference voltage used for a comparator is provided. [Means for Solution] It is an electric circuit which has a comparator which compares voltage and d...

JP2008187432A 
To provide a ramp voltage generation circuit suitable for an A/D converter for suppressing variation caused in a digital value to be obtained by an A/D converting operation.This ramp voltage generation circuit is provided with: a stabili...

JPWO2006092842A1 
A frequency range is made large, without making power consumption increase. A current circuit (1a) and (1b) output the charging current based on control current. A capacitor (C1) and (C2) are provided corresponding to a current circuit (...

JP2008527797A 
The full integration UWB transmitter of new structure. A transmitter contains a pulse generator, a pulse modulator, and superbroadband driver amplifier. The new lowvoltage and lowelectricpower pulse generating circuit which can be in...

JP2008167091A 
To prevent blunting of the waveform of triangular waves in a comparatively high oscillation frequency regarding an oscillation circuit outputting two triangular waves having the same amplitude and inverted phase and a PWM circuit using t...
