摘要:
An apparatus for auto-regulating the input power source of a driver is provided. The apparatus includes a load detector and a controller. The load detector detects a load current and outputs a detection signal according to the load current. The controller is coupled to the load detector and receives the detection signal. The controller provides an operation voltage between a first voltage and a second voltage, wherein the first voltage is lower than the second voltage. The operation voltage is supplied to the driver and regulated flexibly according to different load demand. In the light loading, the device for auto-regulating the input power source can improve the use efficiency of electric power.
摘要:
An apparatus for auto-regulating the input power source of a driver is provided. The apparatus includes a load detector and a controller. The load detector detects a load current and outputs a detection signal according to the load current. The controller is coupled to the load detector and receives the detection signal. The controller provides an operation voltage between a first voltage and a second voltage, wherein the first voltage is lower than the second voltage. The operation voltage is supplied to the driver and regulated flexibly according to different load demand. In the light loading, the device for auto-regulating the input power source can improve the use efficiency of electric power.
摘要:
A power management method and an electronic system using the same are provided. The electronic system includes a display device and an auxiliary device, and has dual batteries and two subsystems. By detection and control mechanisms of the subsystems, the electronic system may allow the display device to maintain in a full power state, in the case where the external power is available or the power of the auxiliary device is sufficient. On the other hand, the auxiliary device may apply to the display device, such as a notebook computer, and the battery time may also be extended since the computer has two batteries.
摘要:
A control method of a variable-frequency and multi-phase voltage regulator module is provided. The variable-frequency and multi-phase voltage regulator module is connected to a central processing unit and embedded on a motherboard for providing a central-processing-unit current. The control method includes steps of: detecting an intensity of a central-processing-unit current of the central processing unit; providing a power to the central processing unit via M number of phases based on a first switching frequency if the intensity of the central-processing-unit current is greater than a reference-current value; and providing a power to the central processing unit via N number of phases based on a second switching frequency if the intensity of the central-processing-unit current is less than the reference-current value.
摘要:
A power supplying control method of a computer system for use with a first power supply and a second power supply both providing a first specific voltage to a motherboard, including steps of: detecting whether the first power supply and the second power supply, outputting the first specific voltage, are at a stable state; outputting the first specific voltage to a first pin when the first power supply is at the stable state; outputting the first specific voltage to the first pin when the second power supply is at the stable state; and outputting the first specific voltage to the motherboard via the first pin.
摘要:
A power management method and an electronic system using the same are provided. The electronic system includes a display device and an auxiliary device, and has dual batteries and two subsystems. By detection and control mechanisms of the subsystems, the electronic system may allow the display device to maintain in a full power state, in the case where the external power is available or the power of the auxiliary device is sufficient. On the other hand, the auxiliary device may apply to the display device, such as a notebook computer, and the battery time may also be extended since the computer has two batteries.
摘要:
A multiphase power supply device and a current adjusting method thereof are provided in the application. The multiphase power supply device outputs power sources and currents with different phases to a microprocessor, and a detection module detects present temperature values of each phase power source to adjust currents of each phase power source to achieve thermal balance. The multiphase power supply device further can automatically measure the power efficiency and display results including the detected temperature values of each phase power source and the power efficiency on a screen, and thus the user can know the operation efficiency of the power supply device conveniently.
摘要:
A current regulator includes a first switch, a second switch, a first current detecting circuit, a second current detecting circuit and a control circuit. Both of the first and second current detecting circuits detect the current of corresponding power route. The control circuit controls the first and the second switches on the route to be turned on or turned off according to detecting signals, and regulates to keep the wiring current in balance.
摘要:
A current regulator includes a first switch, a second switch, a first current detecting circuit, a second current detecting circuit and a control circuit. Both of the first and second current detecting circuits detect the current of corresponding power route. The control circuit controls the first and the second switches on the route to be turned on or turned off according to detecting signals, and regulates to keep the wiring current in balance.
摘要:
A power supply, an over voltage protection (OVP) apparatus, and an OVP method are provided. The present invention employs the OVP apparatus for monitoring a core power. When a voltage level of the core power is higher than a reference voltage, the OVP apparatus disables a power supply unit. As such, the present invention is adapted for avoiding damage to a capacitor of a conversion unit or load caused by abnormal boost of the voltage level of the core power.