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公开(公告)号：US20130265104A1
公开(公告)日：2013-10-10
申请号：US13792242
申请日：2013-03-11
IPC分类号： H02M3/00
CPC分类号： H02M3/00 , H03L7/0896
摘要： A circuit includes an output node; a first current source coupled via at least one first switch to at least the output node and a calibration node, wherein the first switch alternately operably couples the first current source to the output node or the calibration node; a second current source of opposing polarity to the first current source and operably coupled via at least one second switch to at least the output node and the calibration node, wherein the second switch alternately operably couples the second current source to the output node or the calibration node; and a current control circuit having an adjustment circuit operably coupled to the calibration node, wherein the current control circuit couples both the first and second current sources to the calibration node when a current from the first/second current source is not to be used as an output from the output node.
摘要翻译： 电路包括输出节点; 经由至少一个第一开关耦合到至少所述输出节点的第一电流源和校准节点，其中所述第一开关交替地可操作地将所述第一电流源耦合到所述输出节点或所述校准节点; 与所述第一电流源相反的极性的第二电流源，并且经由至少一个第二开关可操作地耦合到至少所述输出节点和所述校准节点，其中所述第二开关交替地可操作地将所述第二电流源耦合到所述输出节点或所述校准 节点; 以及电流控制电路，其具有可操作地耦合到所述校准节点的调节电路，其中当来自所述第一/第二电流源的电流不被用作所述校准节点时，所述电流控制电路将所述第一和第二电流源耦合到所述校准节点 从输出节点输出。
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公开(公告)号：US09768728B2
公开(公告)日：2017-09-19
申请号：US15104243
申请日：2015-11-12
IPC分类号： H03D7/14 , H03K23/50 , H03K3/0231 , H03K23/44
CPC分类号： H03D7/1458 , H03K3/0231 , H03K23/44 , H03K23/50
摘要： A regenerative frequency divider comprising an in-phase mixer circuit and a phase-shifted mixer circuit. At least one switching device of the in-phase mixer circuit is of a smaller scale than a corresponding switching device of the transconductance component of the in-phase mixer circuit. In some examples, at least one switching device within an input switching stage of the regenerative frequency divider forming part of the phase-shifted mixer circuit is of a smaller scale than a respective corresponding switching device within the input switching stage forming part of the in-phase mixer circuit. In some further examples, all switching devices within the phase-shifted mixer circuit are of a small scale than respective corresponding switching devices within the in-phase mixer circuit.
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