-
公开(公告)号：US20130214858A1
公开(公告)日：2013-08-22
申请号：US13385406
申请日：2012-02-17
CPC分类号： H02M3/156 , H02M1/14 , H02M2001/0045 , H02M2003/1566
摘要： A highly efficient, high control bandwidth and high-speed power supply with a linear driver and a switching regulator for regulating an output based on a control signal. The linear driver has a first input for receiving the control signal and a second input connected to the output for receiving negative feedback. The driver's output is controlled by its two inputs and has a capacitor connected in series with it to generate a capacitor voltage VC responsive to the DC and low frequency components in the driver's output. The switching regulator has a control input and a regulator output connected in a regulator feedback loop. The control input receives capacitor voltage VC and the regulator feedback loop minimizes capacitor voltage VC. Thus, switching regulator takes over the generation of DC and low frequency components, while the linear driver provides high frequency output current components.
-
公开(公告)号：US20130214752A1
公开(公告)日：2013-08-22
申请号：US13385405
申请日：2012-02-17
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M1/44 , H02M2001/0058 , Y02B70/1425 , Y02B70/1491
摘要： High bandwidth, low noise switching power supply operating in quasi-resonant mode for filtering switching harmonic noise, while providing a fast control bandwidth and power at high efficiency. The power supply has an LCL tank defining a resonance period Ttank, and a switching circuit regulation loop for turning on its switching circuit for on-time tON commencing at a time based on a state of regulation of the power supply. A switching capacitor current sensor triggers the switching circuit to turn off at the end of the resonance period Ttank, whereupon the switching and output inductors enter a discharging phase for a period not related to resonance period Ttank. “Quasi-resonant” operation, where the power supply is in resonant mode during on time tON and not in resonant mode during off time tOFF ensures that the output inductor filters the switching harmonic noise of the switching circuit.
摘要翻译： 高带宽，低噪声开关电源工作在准谐振模式，用于滤波开关谐波噪声，同时以高效率提供快速的控制带宽和功率。 电源具有限定谐振周期Ttank的LCL槽和用于基于电源的调节状态一次开启其开关电路的开关电路调节环路，用于接通时间tON。 开关电容器电流传感器触发开关电路在谐振周期T tank结束时关闭，于是开关和输出电感器进入放电阶段一段与谐振周期Ttank无关的周期。 “准谐振”操作，其中在断电时间t ON期间电源处于谐振模式，而在关断时间tOFF期间不处于谐振模式，确保输出电感器对开关电路的开关谐波噪声进行滤波。
-
搜索结果
2 条记录 (耗时 0.019 秒)
