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Matches 601 - 650 out of 4,462

Document Document Title
JP2007208400A
To provide a triangular wave generating circuit capable of generating an accurate intermittent triangular wave signal without waveform distortion. The triangular wave generating circuit 1 comprising: a rectangular wave generating circuit...  
JP2007195249A
To provide a circuit for sensing a motor current using low side shunt resistance. A combined motor drive and current sensing circuit comprises: power transistors (Q1, Q2) connected to a load, gate drive units (20, 22) for supplying gate ...  
JP2007194987A
To eliminate a need of not only adjustment even in the case of a different input frequency but also an external control, in a delay circuit for generating a rectangular wave signal resulting from delaying an input rectangular wave signal...  
JP3951674B2
To generate a two phase triangular wave signal with an equal amplitude and a constant phase difference. A Vreg terminal is to input controlled power supply, and a GND terminal is for ground connection. A current source 10 is to supply a ...  
JP3952970B2
To reduce a noise peak value without enlarging a circuital size of a semiconductor integrated circuit, by dispersing an oscillating frequency with a fixed frequency span. A pulse width modulation circuit 10 includes a triangular wave osc...  
JP2007189600A
To provide a sawtooth wave generating circuit which is simple in configuration, capable of generating accurate sawtooth waves, and obtaining the good linearity of an outputted duty ratio even when the sawtooth waves are used as a compari...  
JP2007189506A
To provide a DDS signal generation apparatus capable of improving degree of freedom of a maximum phase accumulation value forming a waveform signal for one period.The DDS signal generation apparatus reads out a trigonometric function fro...  
JP3947438B2
To provide a predrive circuit and a display unit for driving an output element so as to stably transmit a control signal even when a reference potential generated at an output element side is turned into a high voltage. A comparator circ...  
JPWO2005060131A1
リアクタンス調整器は、電界伝達媒体(12 1)に電界を誘起する電極(123)と、リ アクタンス値を調整するための共振部(7) と、共振部(7)へ高レベル及び低レベ...  
JP3935891B2
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 volt...  
JP3937888B2
To provide an oscillation detecting circuit which can detect stably oscillation of an oscillation circuit without being affected by an irregularity in transistor characteristic. Current sources IS11, IS12 are connected in series between ...  
JP3935925B2
To provide an output buffer circuit which shifts the voltage of a high-speed output signal, while suppressing the noise due to the signal transition. In driving a PMOS transistor P1, NMOS transistors N11, N12, N13 are turned on in a stat...  
JP2007142685A
To provide a triangle wave generating circuit capable of generating a triangle wave signal synchronously with an external circuit.A first comparator 32 compares an output voltage Vout across a capacitor C2 with a maximum threshold voltag...  
JP2007143099A
To provide a ramp signal generation circuit and an electro-optical device with low power consumption.As a first process a single-throw switch S0 is closed, and for double-throw switches S1-u, S1-d, S2 a terminal a and a common terminal a...  
JP2007134865A
To provide a temperature controlled oscillator in which oscillation frequency increases continuously as the temperature rises.The temperature controlled oscillator comprises a temperature detecting section 10 outputting a detection volta...  
JP3915530B2
To provide an oscillator which generates a stable oscillation waveform, when the change in an environmental temperature is large. In a first voltage source, a first divided voltage, wherein a DC power source is divided into a plurality o...  
JP3914047B2
To solve the problem wherein the amplitude of a triangular wave signal becomes larger as the frequency of the triangular wave signal increases, resulting in a decrease of a maximum on duty ratio. In an oscillation circuit used for PWM (p...  
JP2007116685A
To provide a system and method for further accurately controlling the quality of a triangular wave.A triangular wave generator comprises a capacitive element, a regulator, and a control circuit. The regulator is configured to charge the ...  
JP3912224B2
To solve a problem that amplitude of triangular waves is fluctuated when frequency is changed. This triangular wave oscillation circuit is provided with a capacitor CT, a charge/discharge circuit 11 performs charge or discharge to the ca...  
JPWO2007046363A
The 1st as a level reversal prohibition circuit, and 2nd FET 55 and 56 for a short circuit, The state of having been reversed is maintained from the time of output signal S4 carrying out level reversal, level reversal is forbidden, and w...  
JP3906982B2
To provide a triangular wave generating circuit suitable for the PWM control of a semiconductor power converting circuit. The circuit is composed of resistors R1-R4, diodes D1-D3, a capacitor C, a comparator element Cp having the output ...  
JP2007509597A
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...  
JP3899472B2
To preliminarily charge an output node to a constant voltage level when an output buffer is disabled and to reduce data access time by providing an output driver controlling means which controls an output driver means with an output sign...  
JP3899395B2
To reduce the peak of a spectrum by modulating a clock pulse train based on a reference frequency clock with a setting frequency so as to obtain a spread spectrum clock thereby spreading the shape of an electromagnetic interference(EMI) ...  
JP2007074190A
To improve the waveform of the output voltage of a triangular wave generating circuit.A first constant current source 10 supplies charging currents to the second terminal of a first capacitor C1 whose first terminal is grounded. The firs...  
JP2007074181A
To provide an inexpensive pulse signal output signal for saving a power.A pulse signal output circuit is provided with a capacitor C1, a fixed current circuit (which is configured of a voltage regulator 2 and a current mirror circuit con...  
JP2007061624A
To meet a need of a method where pulse forms and duration can be manipulated according to the purpose of use of various phacoemulsification and operations.The method for generating energy used by an ophthalmic surgery apparatus character...  
JP2007067508A
To provide a sawtooth wave generating circuit capable of outputting a sawtooth wave the waveform of which is less unsharpened.The sawtooth wave generating circuit 1 includes: a resistor R1; a first capacitor C1 connected in series to the...  
JP2007060215A
To obtain a pulse whose pulse height is stable even if the pulse period changes.A creation signal is generated, which is a signal whose voltage changes in a step shape when a sine wave signal Vin is a predetermined phase by a comparator ...  
JP3888697B2
PURPOSE: To generate a temperature-compensated trapezoidal wave of vertical frequency. CONSTITUTION: In the starting 1/3 of a TRACE period, a signal V102 is lower than 5.6 V, a diode CR20 turns on, and a transistor Q01 turns off, forming...  
JP3882955B2
To provide the sawtooth wave generator for a deflector in which modulation of a ramp start voltage due to a disturbing signal component is prevented. An end time of a retrace part of a vertical sawtooth wave signal of a vertical sawtooth...  
JP3874577B2
To control an upper limit and a lower limit of an oscillated frequency, through application of an external control voltage and moreover to make a frequency ratio of the upper limit to the lower limit of the oscillated frequency equal to ...  
JP3870916B2
To quickly generate a saw-tooth wave voltage having a stabilized amplitude. The saw-tooth generation circuit is provided with voltage sources 1, 8 for determining the reference voltage, a comparison circuit 2 for comparing the reference ...  
JP2007013916A
To provide a signal generator capable of attaining noise reduction and also suppressing increase in a switching loss in a device for electrifying a current signal of a predetermined waveform to an electric load.A signal generating means ...  
JP3866026B2
To provide a pulse generation circuit generating an output signal similar to that by which a neuron is generated in the nervous system of an animal. A spiking neuron circuit supplying a spike output signal in accordance with input curren...  
JP2006352384A
To provide an oscillator with a built-in integrated circuit capable of reducing the time required for IC testing at shipping by changing oscillation frequency using an external switching signal.A timing capacitor is charged with a capaci...  
JP2006352398A
To provide a delay circuit capable of generating a stable and short delay time.The delay circuit includes: a first capacitor; a first current source; a first switch for applying a prescribed voltage to the first capacitor when an input s...  
JP2006340333A
To reduce a carrier component caused by spectrum spreading even if a carrier frequency is low, and to prevent an audio signal from being deteriorated even if this clock is applied to a PWM system digital amplifier.An output frequency of ...  
JP2006340438A
To provide a power unit which can immediately respond without waiting for the next pulse period even in case that load power increases rapidly.This power unit is equipped with a power converter which outputs specified power voltage by sw...  
JP2006337139A
To generate a ramp wave with reduced noise and reduced distortion of the waveform.The waveform generator for generating a waveform comprises a ramp waveform generation section for generating a ramp wave of which the signal value linearly...  
JP2006333119A
To obtain a test circuit for a clock generating circuit that can perform sampling accurately equivalent to modulation cycles to shorten a measurement period and conduct an accurate function test of down-spread control as one modulating f...  
JP2006319753A
To prevent a failure of a driving element by generation of heat, and at the same time, make noise reduction effect work to the maximum extent by carrying out sinusoidal wave approximation of an edge of trapezoid oblique side of output co...  
JP2006319446A
To provide a frequency-dividing circuit for stably generating a pulse signal for generating a sawtooth wave signal having a frequency of one third of the frequency of an input signal.A T-flip-flop 21 inverts an output state in synchroniz...  
JP3848999B2
A fast voltage ramp generator comprises a chain of transistors connected collector to emitter in series, and biased to avalanched switching mode. A respective transformer secondary is connected to apply a switching pulse across the base ...  
JP3844477B2
To provide a method for controlling the rise time of a bus signal on a bus coupled to a driver circuit. A rise time control structure 1100 for controlling the rise time of the bus signal coupled to a driver circuit 1110 is provided with:...  
JP2006311074A
To precisely match an output voltage with a target voltage while securing a proper rise/fall time.A reference voltage generation circuit 18 generates a reference voltage Vt1 which rises toward a reference voltage Vr1 as the target voltag...  
JP3838213B2
To generate a trapezoidal wave signal that smoothly changes, while suppressing the circuit scale as small as possible. Current output circuits 18, 20 of a charging/discharging circuit 12 respectively make flow a charging current and a di...  
JP3838211B2
To provide a trapezoidal wave signal generating circuit in which harmonic components included in the waveform can be reduced as much as possible, and an asynchronous serial communication transmitter employing that trapezoidal wave signal...  
JP3838202B2
To accurately establish the time deviation of rise and fall between input and output signals respectively and to eliminate noise in the state. When reception signals RXin change from H to L, a capacitor C12 is discharged by the current o...  
JP2006261837A
To provide an oscillation circuit and an oscillation control method with a simple configuration capable of obtaining a plurality of oscillation outputs synchronously with each other with respect to the oscillation circuit and the oscilla...  

Matches 601 - 650 out of 4,462