首页>
外国专利>
Switching power supply device, integrated circuit, and switching power supply device operation condition setting method
Switching power supply device, integrated circuit, and switching power supply device operation condition setting method
展开▼
机译:开关电源装置,集成电路以及开关电源装置工作条件设定方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
To provide a switching power supply device, and an operation condition setting method thereof, wherein it is possible to set an operation condition during an initialization period by adjusting the resistance value of a resistor that grounds an OUT terminal or IS terminal.;A switching power supply device includes an oscillator circuit (3) that regulates the switching frequency of a switching element (Q1), a drive circuit (4) that turns (Q1) on and off based on an oscillation signal from the oscillator circuit (3), a condition setting circuit (6), disposed inside a power supply control IC (100) configured to include the oscillator circuit (3) and drive circuit (4), that outputs a condition indicating signal for indicating an operation condition of the switching power supply device, and a control circuit (1) that instructs the condition setting circuit (6) to determine a condition indicating signal within an initialization period immediately after the start of a supply of power to the power supply control IC (100), wherein a first resistor (R1) having an adjusted resistance value is connected to an external terminal of the power supply control IC (100) from which is output a drive signal to (Q1).
展开▼