Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 701 - 750 out of 4,460

Document Document Title
JP3618869B2
To generate accurately a desired signal in response to an input clock signal. A charge/discharge control circuit 1 inputs a clock signal SK with a same frequency as that of a triangle wave signal and an outputs a signal SK2 controlling c...  
JP3613787B2
To reduce inter-cycle jitters in a clock generator, to which an EMI countermeasures are subjected. In a secondary PLL having a loop filter 7 constituted of a first capacity and a first resistance, the decrease in comparison frequencies c...  
JP2005020179A
To provide an oscillation circuit which operates even with low power voltage of 1V or below, with which a constant frequency is obtained with respect to fluctuation of power voltage and which has less fluctuation of the frequency.The cir...  
JP3611043B2  
JP3611423B2  
JP3608819B2
PURPOSE: To obtain the oscillation output of a large duty rate by intermittently controlling a charging current to a second capacitor by means of a first switch corresponding to the oscillation output of a first relaxation oscillator so ...  
JP2005500775A
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.  
JP3606959B2  
JP3607319B2  
JP3607094B2  
JP2004364276A
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: ...  
JP2004363981A
To provide a DDS (Direct Digital Synthesizer) signal generator allowing a comparatively small waveform memory in size and acted by the result of arithmetic operation based on a strictness expression independent of an approximation expres...  
JP3603457B2  
JP3603642B2  
JP2004349831A
To provide an oscillation circuit with a simple configuration and low power consumption wherein a consumed current is small.The oscillation circuit is provided with: a capacitor Co for charging / discharging a current; a charge / dischar...  
JP3593261B2  
JP3583470B2  
JP3581260B2  
JP3581002B2  
JP2004297724A
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 dis...  
JP2004289597A
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...  
JP3577392B2  
JP2004282352A
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 v...  
JP2004282525A
To provide a waveform generating device capable of reducing distortion of an output waveform by extracting resolution belonging to a D/A converter as much as possible and easily changing frequencies of the output waveform without being a...  
JP2004266780A
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 osci...  
JP2004260311A
To provide a PWM signal generator circuit for generating a PWM signal quick in response.The signal generator circuit comprises a reference pulse signal generator circuit 10 for generating pulse signals at intervals corresponding to an in...  
JP2004253868A
To provide a triangular wave oscillation circuit for oscillating a triangular wave in an frequency independent of a power supply voltage and in an oscillation amplitude depending on the power supply voltage.The triangular wave oscillatio...  
JP2004247828A
To obtain an oscillation circuit for generating triangular waves having different frequencies, phases or amplitude widths synchronously to a standard triangular wave in generating a plurality of triangular waves.When voltages VC1 at both...  
JP2004242403A
To dispense with phase shift, by enabling a plurality of electronic devices to severally generate triangular waves and enabling them to synchronize those triangular wave signals with each another, having specified phase differences, in a...  
JP2004228859A
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 of...  
JP2004214979A
To provide a sawtooth wave generator which stably supplies sawtooth waves corresponding to a fluctuation in resonance frequency, and also to provide a sawtooth wave generation method.The sawtooth wave generator 1 of this invention is con...  
JP3545031B2
PURPOSE: To accurately change an output current stepwise in the current control circuit outputting the output current to control an oscillating frequency of an oscillation circuit. CONSTITUTION: Since a current IA1 supplied to a node 2 i...  
JP2004517520A
A monitor deflection circuit includes a bipolar power transistor for applying power from a high voltage supply to a horizontal deflection coil. The monitor deflection circuit further includes a base drive circuit for selectively turning ...  
JP3534457B2
PURPOSE: To provide the signal generator Which efficiently controls the timings of generation or stop of many signals. CONSTITUTION: The signal generator is provided with a timer 1 which increments the counted value in accordance with a ...  
JP3536426B2
PURPOSE: To provide a waveform generator which contains a means capable of externally and simultaneously changing both frequency and phase shift data at a high speed. CONSTITUTION: A waveform generator is provided with an adder 30 to whi...  
JP3528854B2
PURPOSE: To actualize the bootstrap circuit which drives a power MOS transistor(TR) with high-potential side constitution wherein the power MOS TR is able to operate with a low-level supply voltage when operating at a high switching freq...  
JP3524109B2
PURPOSE: To generate a prescribed triangular wave signal by controlling the current value of charging current source by an outputted error signal and at the same time controlling the duty of an input clock signal. CONSTITUTION: A clock s...  
JP3520095B2
PURPOSE: To prevent the adjustment of a raster centering control signal from substantially affecting a raster height adjustment by generating an adjustable raster height control signal for the raster height adjustment. CONSTITUTION: When...  
JP2004118181A
To realize new constitution for driving a driven element by injection of a current and to accurately charge the gate electrode of a current driving transistor, specially, in constitution using the current driving transistor for supplying...  
JP3519354B2
To use a sawtooth wave generation circuit for an integrated circuit since the detection characteristic of a phase difference can be decided by the ratio of capacitors and it is independent of an absolute value. A phase shift between an i...  
JP2004104645A
To generate a triangular wave that goes up and down at constant inclination.A triangular wave generating device is provided with a capacitor, a current source for outputting constant current, a resetting voltage output circuit, a chargin...  
JP3512819B2
PURPOSE: To easily linearize the exponential waveform of a ramp voltage which is generated by the repetitive charging and discharge of a resistor and a capacitor. CONSTITUTION: A vertical deflection ramp voltage VR is generated by utiliz...  
JP2004509550A
The present invention relates to the electric circuit for generating a periodic signal (CLK). The capacity device (C) which has the 1st terminal area (K1) and the 2nd terminal area (K2) in this electric circuit, It is connected to the 1s...  
JP2004509551A
The present invention relates to the efficient driver line for a capacitive load containing the driver portion (12) to which a voltage waveform is impressed, and which is connected to at least one end (X) of capacitive electrical load (1...  
JP3509258B2
PURPOSE: To compensate optional transmission line loss by adding a square wave and a triangular wave to an original wave. CONSTITUTION: This circuit is provided with a signal generator 1, a register 2 storing square pulse width data and ...  
JP3510054B2
To output a signal equal to a set signal waveform without complicating the whole constitution by executing signal processing based on stored waveform data in response to the input of logic data and generating an output signal having a pr...  
JP3505120B2
To compensate fluctuation in load capacity and a temperature and to minimize power dissipation by generating bias current proportional to capacity, a clock frequency and an absolute temperature through the use of an integrated capacitor ...  
JP2004072657A
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 cap...  
JP2004064427A
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 circu...  
JP2004023556A
To provide an electronic apparatus capable of entirely and efficiently reducing EMI noise when a plurality of kinds of clocks acting like an operation reference exist.The electronic apparatus applies frequency spread processing to a cloc...  

Matches 701 - 750 out of 4,460