Patent application number | Description | Published |
20100264896 | Voltage regulator circuit - It is desired for semiconductor devices to reduce an inrush current and an overshoot. According to the voltage regulator circuit of the present invention, when a power supply is turned on, a switch SW | 10-21-2010 |
20110032135 | D/A CONVERTER - A D-A converter includes a resistor string that generates a plurality of voltages including an upper limit voltage, a lower limit voltage, and an intermediate voltage, a first selector that selects and outputs a first voltage among the plurality of voltages according to a lower bit, the first voltage being selected from the intermediate voltage and a voltage lower than the intermediate voltage, a second selector that selects and outputs a second voltage according to a higher bit, the second voltage being one of a lower power supply voltage and the intermediate voltage or a voltage higher than the intermediate voltage, a third selector that selects and outputs a third voltage according to the higher bit, the third voltage being selected from the lower limit voltage and the lower power supply voltage; and an amplifier that adds the first voltage and the second voltage and subtracts the third voltage. | 02-10-2011 |
20110089997 | POWER SUPPLY CIRCUIT - A power supply circuit in accordance with the invention includes a charge-pump circuit and a control circuit. The charge-pump circuit includes first and second capacitors. The control circuit controls the charging voltage of the first and second capacitors. In this way, the power supply circuit outputs a constant output voltage based on the charging voltages of the first and second capacitors. | 04-21-2011 |
20110310080 | DRIVE CIRCUIT, DRIVE METHOD, AND DISPLAY DEVICE - Provided is a drive circuit including a PDAC and an NDAC that respectively select a positive gray scale voltage and a negative gray scale voltage according to gray scale data, a positive Amp and a negative Amp, an output selection switch that inverts outputs of the positive Amp and the negative Amp, an output switch that makes switching to disconnect an amplifier output from data lines during a switching period, a charge share switch that short-circuits the data lines during the switching period, and data selector circuits that set an amplifier input to a fixed voltage not dependent on a gray scale voltage corresponding to gray scale data for display during the switching period. | 12-22-2011 |
20120154051 | VOLTAGE REGULATOR CIRCUIT - A voltage regulator circuit includes a differential amplifier circuit that includes a first input terminal and a second input terminal, the first input terminal supplied a reference voltage, an output circuit that receives an output voltage from the differential amplifier circuit to generate a first voltage based on the output voltage, and a control circuit that compares the first voltage with a second voltage, and outputs the first voltage or a third voltage to the second input terminal based on a result of comparing, the second and third voltage being different from the first voltage. | 06-21-2012 |
20140070319 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A first MOSFET is formed in a first region of a chip, and a second MOSFET is formed in a second region thereof. A first source terminal and a first gate terminal are formed in the first region. In the second region, a second source terminal and a second gate terminal are arranged so as to be aligned substantially parallel to a direction in which the first source terminal and the first gate terminal are aligned. A temperature detection diode is arranged between the first source terminal and the second source terminal. A first terminal and a second terminal of the temperature detection diode are aligned in a first direction substantially parallel to a direction in which the first source terminal and the first gate terminal are aligned or in a second direction substantially perpendicular thereto. | 03-13-2014 |
20140125289 | CELL PROTECTION SYSTEM - A cell protection system includes a charge control MOSFET | 05-08-2014 |
20150214213 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A first MOSFET is formed in a first region of a chip, and a second MOSFET is formed in a second region thereof. A first source terminal and a first gate terminal are formed in the first region. In the second region, a second source terminal and a second gate terminal are arranged so as to be aligned substantially parallel to a direction in which the first source terminal and the first gate terminal are aligned. A temperature detection diode is arranged between the first source terminal and the second source terminal. A first terminal and a second terminal of the temperature detection diode are aligned in a first direction substantially parallel to a direction in which the first source terminal and the first gate terminal are aligned or in a second direction substantially perpendicular thereto. | 07-30-2015 |