Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 701 - 750 out of 4,503

Document Document Title
JP2012528498A
This application provides a method of synchronizing a PWM output from a master device and a slave device for a switch mode power supply which operates in master * slave composition as a whole, for example, avoids a problem like generatio...  
JP2012217170A
To provide a signal generator, outputting an analog frequency signal based on a digital value corresponding to a preset frequency, capable of achieving good noise characteristics, elimination of a ROM table corresponding to waveform data...  
JP2012217118A
To stabilize the response of a pulse-width modulation signal when an amplitude of an audio signal becomes excessive at a negative side.A pulse-width modulation circuit 10 comprises: a clock generation circuit 11; a differential amplifier...  
JP5064942B2  
JP5049707B2  
JP5053247B2  
JP5036373B2  
JP5036056B2
First and second counter circuits output a signal based on a trigger signal and a clock signal respectively. A selection circuit selects first to fourth signals as the trigger signal, the clock signal, the trigger signal and the clock si...  
JP5023709B2  
JP5026488B2  
JP5016360B2  
JP5019408B2  
JP5008962B2  
JP2012151830A
To provide a device and method generating a multi-channel pulse width modulation signal, and an LED system having the same.The present invention is related to a technique for driving a plurality of loads, in particular, related to a devi...  
JP4991936B2  
JP4991844B2  
JP2012142887A
To make the finer output resolution of a variable voltage generation circuit capable of output in a simple and inexpensive configuration without resorting to increased specifications of pulse signal generation means for generating a PWM ...  
JP4984226B2  
JP4982260B2  
JP4980989B2  
JP4974637B2  
JP2012129810A
To provide a driver circuit that can adjust at least either a positive edge waveform or a negative edge waveform.A branch circuit 10 divides an input signal SIN to be transmitted into a plurality of paths 12. Each timing adjustment circu...  
JP4954442B2  
JP2012110060A
To provide a method for determining a PWM control duty which can further reduce a noise level than techniques for slight variations in a communication frequency.When slightly varying the duty of a PWM signal output to a drive circuit aro...  
JP4947307B2  
JP2012094934A
To provide a pulse width modulation device that allows repeated or dynamic adjustment to level balance between the precision of pulse width setting and the frequency of a modulated signal.The pulse width modulation device includes: a cou...  
JP2012085038A
To provide a load controller capable of shifting both on- and off-timings for suppression of a power supply variation gradient even when the number of controlled object loads increases.A microcomputer stores a flag of on-timing so as not...  
JP2011035725A5  
JP2010263498A5  
JP4897873B2  
JP2012044633A
To prevent breakdown of circuit elements, which is caused by a power supply pumping phenomenon, without stopping an operation.When a detection circuit 25 detects that an absolute value of a charging voltage of a capacitor C1 is equal to ...  
JP4880288B2  
JP2012034417A
To provide a pulse modulation circuit and a pulse modulation method that can form a pulse modulation signal having a desired pulse waveform without depending on transmission data signal strings.A pulse modulation circuit 200 synchronizes...  
JP4878227B2  
JP2012029312A
To provide an operation method of a low cost electric actuator control device.A method for operating a device 1 for controlling an electric actuator 3 comprises: a pair of input terminals 4 and 5 connected to electrical energy sources 6 ...  
JP4871003B2  
JP2012016232A
To shorten a delay error TDLY by reducing an error (phase difference) between a PWM gate command before dead time compensation and a phase voltage output after dead time compensation.A dead time compensation unit 30 increases or reduces ...  
JP2011259323A
To enhance the resolution of a DC signal after conversion without lowering a frequency of a PWM signal, in a method in which a PWM signal is converted into a DC signal and then output is controlled depending on the DC signal after the co...  
JP4843041B2  
JP4840328B2  
JP4838074B2  
JP4838359B2  
JP4834142B2  
JP2011061839A5  
JP2011529667A
A signal processor (30) is provided. The signal processor (30) is configured to receive a first analog signal and convert the first analog signal into a digital signal. The digital signal is transmitted across an electrical barrier and c...  
JP4833812B2  
JP4825738B2  
JP4826795B2  
JP2011239056A
To change a control range while maintaining a resolution of a pulse width modulation (PWM).The pulse width modulator includes a first adder to add a control value and an offset value, a second adder to add an output from the first adder ...  
JP2011239189A
To prevent generation of a jitter when a signal rises and falls after pulse modulation.The pulse modulation apparatus is provided with an N frequency division circuit 3 which divides the frequency of an input signal into 1/N, a modulatio...  

Matches 701 - 750 out of 4,503