传统的LED驱动器方案采用次级反馈电路来驱动LED的电压和电流,而次级反馈电路会导致成本和尺寸的增加。本文将介绍一种"初级端调节"(Primary Side Regulation,PSR)专利技术。这种PSR控制器无需次级端反馈电路,即能够精确调节...传统的LED驱动器方案采用次级反馈电路来驱动LED的电压和电流,而次级反馈电路会导致成本和尺寸的增加。本文将介绍一种"初级端调节"(Primary Side Regulation,PSR)专利技术。这种PSR控制器无需次级端反馈电路,即能够精确调节变压器初级端中LED驱动器的电压和电流。展开更多
Throughout the ages imbibing alcohol has helped cement business relationships and deals. But the contemporary manifestations of business drinking are often far from the gilded display of majesty replete with fine wine...Throughout the ages imbibing alcohol has helped cement business relationships and deals. But the contemporary manifestations of business drinking are often far from the gilded display of majesty replete with fine wines and exotic entertainment of a state tribute to the Emperor, or the sophisticated cocktail cuhure of the better half of the 20th century as depicted in the television series Mad Men.展开更多
The Martini is indisputably the most famous of all cocktails. Whether we＇re talking about the classic martini made with gin, vermouth, and olives or a bastardized suffix thereof, conjugated with anything under the su...The Martini is indisputably the most famous of all cocktails. Whether we＇re talking about the classic martini made with gin, vermouth, and olives or a bastardized suffix thereof, conjugated with anything under the sun to arrive at [enter sexy word here]- Tini. The question ＂What is a Martini？＂展开更多
文摘Throughout the ages imbibing alcohol has helped cement business relationships and deals. But the contemporary manifestations of business drinking are often far from the gilded display of majesty replete with fine wines and exotic entertainment of a state tribute to the Emperor, or the sophisticated cocktail cuhure of the better half of the 20th century as depicted in the television series Mad Men.
文摘The Martini is indisputably the most famous of all cocktails. Whether we＇re talking about the classic martini made with gin, vermouth, and olives or a bastardized suffix thereof, conjugated with anything under the sun to arrive at [enter sexy word here]- Tini. The question ＂What is a Martini？＂
