Abstract:
In a semiconductor device for power management and a semiconductor system including the same, the semiconductor device includes an open loop source generator configured to generate an open loop source, an interface configured to output a dynamic voltage source (DVS) code based on the open loop source, a monitoring unit configured to receive a power supply voltage generated based on the DVS code as a feedback and generate a monitoring signal, and a phase difference measurement unit configured to compare the open loop source with the monitoring signal and set a hold time corresponding to an arithmetic period in a closed loop.
Abstract:
Disclosed is an electronic device including a display; a connector; and a processor configured to sense moisture introduced into the connector in a state where one or more functions executable by connection of the connector with an external electronic device are activated; deactivate the one or more functions based on the sensing; determine whether the introduced moisture is removed in a state where the one or more functions are deactivated; and activate the one or more functions if the moisture is removed.
Abstract:
In a semiconductor device for power management and a semiconductor system including the same, the semiconductor device includes an open loop source generator configured to generate an open loop source, an interface configured to output a dynamic voltage source (DVS) code based on the open loop source, a monitoring unit configured to receive a power supply voltage generated based on the DVS code as a feedback and generate a monitoring signal, and a phase difference measurement unit configured to compare the open loop source with the monitoring signal and set a hold time corresponding to an arithmetic period in a closed loop.
Abstract:
A method of ensuring power delivery in a universal serial bus (USB) interface between a device and a counterpart device, the device including a port controller and a USB receptacle. The method includes the port controller attempting to detect an abnormal state in which a leakage current occurs in the USB receptacle using at least one pin of the USB receptacle; and when the abnormal state is detected, the port controller turning OFF a switch connected between a power pin of the USB receptacle and an internal circuit of the device, and determining to enter an unattached state of being separated from the counterpart device.
Abstract:
An electronic device and a method for sensing moisture in an electronic device are provided. The method for sensing moisture in an electronic device includes sensing moisture introduced into a connector of the electronic device in a state where one or more functions executable by connection of the connector with an external electronic device are activated. Further, the method includes deactivating the one or more functions based on the sensing; determining whether the introduced moisture is removed in a state where the one or more functions are deactivated; and activating the one or more functions if the moisture is removed.
Abstract:
A method of ensuring power delivery in a universal serial bus (USB) interface between a device and a counterpart device, the device including a port controller and a USB receptacle. The method includes the port controller attempting to detect an abnormal state in which a leakage current occurs in the USB receptacle using at least one pin of the USB receptacle; and when the abnormal state is detected, the port controller turning OFF a switch connected between a power pin of the USB receptacle and an internal circuit of the device, and determining to enter an unattached state of being separated from the counterpart device.
Abstract:
A voltage converter includes a switching driver, a controller, a low-pass filter and a pulse width modulation signal generator. The switching driver includes a pull-up switching circuit connecting an input voltage to a switching node in response to a pull-up signal and a pull-down switching circuit connecting a ground voltage to the switching node in response to a pull-down signal. The controller generates the pull-up signal and the pull-down signal in response to a pulse width modulation signal and measures pull-up and pull-down turn-on times of the pull-up and pull-down switching circuits in real time to control a dead time. The low-pass filter filters a switching voltage signal on the switching node to generate an output voltage. The pulse width modulation signal generator generates the pulse width modulation signal based on a reference signal and the output voltage.