A semiconductor integrated circuit device includes a power supply circuit that generates one or more internal supply voltages from an external supply voltage, and one or more functional circuits that operate on the one or more internal supply voltages. A step-down converter in the power supply ...
Step-down circuit, power supply circuit, and semic 优质文献 相似文献 参考文献 引证文献Semiconductor integrated circuit device having built-in step-down circuit for stepping down external power supply voltage An LSI device can provide a desired constant value of a step- down voltage even if there ...
A power supply circuit that outputs a set voltage from an output terminal, has a boosting circuit that boosts a voltage supplied from a power supply and outputs the voltage to the output terminal; a v
SEMICONDUCTOR INTEGRATED CIRCUIT This semiconductor integrated circuit is provided with: first and second power supply lines that are connected to a circuit to be protected; a third power supply line to which a voltage that is different from the voltage applied to the f... T Tatsumi 被引量: ...
United States Patent US7479767 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
A power supply circuit can include: a constant current control circuit configured to receive a first voltage and a first current from a power supply, and to generate a second voltag
PROBLEM TO BE SOLVED: To provide a controlling semiconductor integrated circuit that comprises a function for preventing a reverse current flowing to a coil in light loading, and constitutes a synchronous rectifying switching regulator favorable in the responsiveness of an output voltage to a load vari...
(220kΩ).X4isconnectedtothe negativesupplylineofthepowercircuit.ComparatorG3 thengiveslogicalinformationaboutthepolarityofthe voltageacrossS1-D1. Informationabouttheamplitudeofthisvoltageisobtained viacomparatorG4.Areferencevoltage,proportionaltothe mainsvoltage,isconnectedtoX5.IftheattenuatedS1-D1 voltage...
A step-up power supply circuit is provided with a diode D<B>1 </B>to which a predetermined voltage Vcc is applied from a power supply <B>16, </B>a capacitor C<Sub>D1 </Sub>connected to the diode D<B>1</B>, a diode D<B>2 </B>connected to a joint point between the diod...
chips have been mostly, but not entirely, replaced by digital chips. Power supply chips are usually analog chips. Analog chips are still required for wideband signals, and they are still used as sensors. In analog chips, voltage and current vary continuously at specified points in the circu...