Patent application number | Description | Published |
20100135046 | PREDICTIVE CONTROL SYSTEM - The first sampling measurement value compares whether to exceed a prescribed threshold and judges the control part at the sampling time. The control part compares whether the first sampling measurement value exceeds a prescribed threshold. When the actual measurement value doesn't exceed a prescribed threshold, the control part predict the first sampling value at the next sampling time. [1] When the first sampling the predicting value doesn't exceed the threshold value, the status of the switch is maintained, [2] When the first sampling the predicting value exceeds the threshold value, the time when the movement of the switch should be changed is calculated and the status of the switch is changed at time concerned. | 06-03-2010 |
20100253408 | TIMING GENERATING CIRCUIT AND PHASE SHIFT CIRCUIT - There are provided a timing generating circuit which can generate the rising edge or the falling edge of pulses with a resolution higher than the frequency of a repeat signal generating circuit, and a phase shift circuit which can be applied to the timing generating circuit. The phase shift circuit receiving a repeat signal generates a signal of which a phase is shifted by a predetermined quantity on the basis of the repeat signal, the phase shift controller controls what phase of signal the phase shift circuit output among first to M-th signals, and the counter circuit counts the number of output signals of the phase shift circuit and generates a count end signal when the count value reaches a set value, and thereby the counter circuit outputs a synthesized timing signal of the timing of the repeat signal and the timing shifted by the phase shift circuit. | 10-07-2010 |
20100264839 | LOAD CONTROL DEVICE, AND LIGHTING DEVICE - Provided is a discharge lamp lighting device, which can control a load precisely while improving the practicability. When the difference of a count number (Nn) becomes a predetermined threshold value or less, a predictor circuit ( | 10-21-2010 |
20100271096 | WAVEFORM PROCESSING CIRCUIT - A rising edge or a falling edge is finely adjusted, or a dead time and a period are adjusted with high accuracy. A waveform processing circuit includes: an integration circuit | 10-28-2010 |
20100277956 | CONTROL APPARATUS OF POWER CONVERTER CIRCUIT - To detect a peak time of an exciting current of a transformer, a primary current corresponding to the peak time, or a variation time of the primary voltage, and to switch a switch after expiration of a predetermined period from the peak time, after the peak time occurs. A control apparatus | 11-04-2010 |
20120243265 | CONTROL DEVICE FOR DC/DC CONVERTER - Disclosed herein is a control device for a DC/DC converter, in which FB control and FF control are combined to estimate an output voltage of a nonlinear dynamic system while guaranteeing stability. The control device includes a FB controller which generates a first time value for switch-off timing as the amount of feedback control, a machine learning controller which generates a second time value for switch-off timing as the amount of FF control, and a difference time calculator which obtains a difference between the first time value and the second time value and transmits a difference signal to the drive circuit. The machine learning controller calculates a second time value by multiplying the deviation between the target value of the machine learning control and the estimation value from leaning history in certain sampling by α=A·e×p(−λ×n) (A: a factor (except for zero) for suppressing the first undershoot, λ: a factor (constant except for zero) for suppressing the second undershoot, and n: an integer indicating the nth sampling). | 09-27-2012 |
20120326751 | FREQUENCY JUDGMENT DEVICE, VOLTAGE COMPARATOR CIRCUIT, AND FREQUENCY MEASUREMENT DEVICE - The frequency decision device determines frequency of the measured rectangular signal by simple and easy means. The frequency decision device inputs the measured rectangular signal that frequency (or period) changes dynamically. It generates a rectangular reference signal of predetermined on width τ synchronizing to the edge based on a positive going edge of this measured rectangle signal. And it watches the order of measured rectangle signal and falling edges of the rectangular reference signal. When this sequential order reversed, it detects that length of the ON time of ON time of the measured rectangle signal and the measured rectangular signal reversed. | 12-27-2012 |
20130094259 | CONTROL APPARATUS OF POWER INVERTER CIRCUIT - It provides the effective power conversion control technique which it can control which it made use of a characteristic (nature) of each A/D converter in. It comprises the third control part including the third operating circuit it inputs signal from third A/D converter inputting the detecting signal which is different from the detecting signal which is the same as the detecting signal or the detecting signal and above third A/D converter, and to generate the third operating signal, and the above actuating management circuit manages the actuating of an above first control part and the second above control part and the third above control part. | 04-18-2013 |
20130106383 | CONTROL CIRCUIT AND CONTROL METHOD FOR POWER CONVERSION DEVICE | 05-02-2013 |