发明授权
US06919763B2 Transconductance amplifier for inductive loads and method for driving inductive loads
有权
用于感性负载的跨导放大器和用于驱动感性负载的方法
- 专利标题: Transconductance amplifier for inductive loads and method for driving inductive loads
- 专利标题(中): 用于感性负载的跨导放大器和用于驱动感性负载的方法
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申请号: US10642394申请日: 2003-08-14
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公开(公告)号: US06919763B2公开(公告)日: 2005-07-19
- 发明人: Michele Boscolo , Ezio Galbiati
- 申请人: Michele Boscolo , Ezio Galbiati
- 申请人地址: IT Agrate Brianza
- 专利权人: STMicroelectronics S.r.l.
- 当前专利权人: STMicroelectronics S.r.l.
- 当前专利权人地址: IT Agrate Brianza
- 代理机构: Seed IP Law Group PLLC
- 代理商 Lisa K. Jorgenson; E. Russell Tarleton
- 优先权: ITMI2002A1867 20020830
- 主分类号: H03F3/217
- IPC分类号: H03F3/217 ; H03F3/00 ; H02K23/00 ; H03F1/36
摘要:
A transconductance amplifier for inductive loads and a relevant inductive load driving method, the amplifier having an input stage receiving a driving signal (set-point), a power stage connected downstream of the input stage and connected to the load and an output stage fedback on the input stage to transfer a signal associated to the load. Advantageously, the input stage comprises at least a comparator receiving on one input the driving signal and on another input the output of the output stage. A delay block is also provided between the comparator output and the power stage to delay the comparator switching. This can be obtained also by using a hysteretic comparator.
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