双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

Self-charging Remote Control

Look around any household or even office and you will find a multitude of remote controls. Classic examples include remote controls for the television, set-top-box and music / sound systems, but they can also include garage door openers, blinds, lights and air conditioning (HVAC) systems to name just a few. One thing they have in common is they are often powered by small batteries. As they don’t demand a lot of power, increasingly designers are moving to rechargeable solutions that can benefit from Nexperia's Energy Harvesting Power Managment ICs (PMICs) to ensure we never have to change the batteries in a remote control ever again.

Block diagram

Products

设计考虑因素

  • 开始采用PWM驱动无刷直流电机控制
  • 电机驱动MOSFET必须以低RDSon和良好的热阻抗来满足峰值高电流需求
  • 如果过载情况会降低电池和栅极电压，则可能需要具有强线性模式性能的MOSFET来提供反向电池保护
  • MOSFET可能需要满足UL2595等的具体间距要求
  • 为小尺寸优化的电荷平衡MOSFET，通常装在可移动电池组中——每个电池一个

Adaptive energy harvesting PMIC enables environmentally friendly autonomous, connected devices

Ambient energy harvesting has often been proposed for recharging batteries in remote internet-of-things devices but hasn’t yet taken off. Nexperia's new dedicated PMIC is set to radically improve the viability of energy harvesting with significant benefits for the environment.