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Matches 501 - 550 out of 4,464

Document Document Title
JP2010011337A
To provide a sawtooth wave generation circuit, capable of generating a desired voltage waveform without having to use an expensive power amplifier.The sawtooth wave generation circuit includes: a bias means for setting a final voltage va...  
JP4394124B2
A charge pump comprises a single voltage multiplier stage ( 1 ) which converts an input voltage (VDD) into an output voltage (Vo) under control of a clock signal (Q, Qn; CLKO). An oscillator ( 2 ) receives the input voltage (VDD) to gene...  
JP2009296413A
To provide an astable multivibrator equipped with a voltage-controlled oscillator whose frequency is stable even at wide-range output frequency control.In the astable multivibrator having amplitude clipping elements Q3 and Q4 connected t...  
JP4355658B2  
JP2009246595A
To display whether a triangular wave or trapezoidal wave, and a reference clock signal are synchronized in phase.A triangular wave-trapezoid 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 single-end input constitution.A PWM signal generating cir...  
JP2009171293A
To provide a standard pulse generator and standard pulse generating method capable of generating a high-speed 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 saw-tooth 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 upper-limit voltage and a lower-limit 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 wave-height 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 wave-height value by synchronizing spectrum-spread 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 3-phase 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 voltage-controlled oscillation circuit even when increasing its oscillation frequency.The voltage-controlled oscillation circuit for oscillating the charg...  
JP4229804B2
A NMOS (34a) determines whether output voltage (Vo) exists in state of power supply voltage (Vcc). When output voltage is same as supply voltage, NMOS (37) discharges electric charge of gate of source follower (32) based on control signa...  
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 frequency-variable 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 frequency-variable 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 two-phase 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 self-oscillation type oscillation circuit capable of obtaining a more accurate oscillation frequency.The self-oscillation 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 high-resolution 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 stair-like 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...  

Matches 501 - 550 out of 4,464