Patent application number | Description | Published |
20100201283 | DRIVING DEVICE - A driving device comprises a first transistor (B | 08-12-2010 |
20130069554 | DRIVING DEVICE - A driving device comprises a first transistor (B | 03-21-2013 |
20130308061 | Switching Power Supply Device - A switching power supply device has a reference voltage generator for generating a reference voltage, a ripple injector for generating a ripple component by use of a pulse voltage indicating the on/off state of a switching element and injecting the ripple component into the reference voltage, an integrated voltage generator for generating an integrated voltage commensurate with the integrated value of the pulse voltage throughout its on- and off-duty periods, a subtractor for lowering according to the integrated voltage the reference voltage before injection of the ripple component or the supply voltage to a buffer that feeds the ripple injector with the pulse voltage after making its pulse height constant, a comparator for comparing a feedback voltage with the reference voltage after injection of the ripple component, and a switching controller for generating an output voltage from an input voltage by non-linear control by turning on and off the switching element according to the output signal of the comparator. | 11-21-2013 |
20130314606 | Switching Power Supply Device - A switching power supply device includes: a non-linear control type switching control unit that, in accordance with a result of a comparison between a feedback voltage and a reference voltage, performs on/off control of a switch element, and thereby generates an output voltage from an input voltage; a backflow current detection unit that, upon detecting a backflow current flowing to the switch element, forcibly switches off the switch element; and an on-time setting unit that sets an on-time of the switch element, in a case of the backflow current not being detected, in accordance with a duty of the switch element, and in a case of the backflow current being detected, in accordance with a switch voltage appearing at one end of the switch element or the output voltage. | 11-28-2013 |
20140015433 | DRIVING DEVICE - A driving device comprises a first transistor (B | 01-16-2014 |
20140016240 | DRIVER CIRCUIT AND TELEVISION SET USING THE SAME - A driver circuit includes: a first transistor connected between a line of first voltage and an output terminal; a first overcurrent detector configured to output a first signal when overcurrent flows into the first transistor; a first control unit configured to turn on and off the first transistor at a predetermined period and turn off the first transistor when the first signal is output from the first overcurrent detector; and a counter configured to count the number of times by which the first signal is output from the first overcurrent detector within a predetermined time interval, and to output a shut-down signal to stop an operation of the driver circuit as a value of the count reaches a predetermined value of equal to or more than 2. | 01-16-2014 |
20140312872 | POWER SUPPLY CIRCUIT - A power supply circuit | 10-23-2014 |
20140333280 | DRIVING DEVICE - A driving device comprises a first transistor (B | 11-13-2014 |