基本信息:
- 专利标题: SWITCHED CAPACITOR CIRCUIT
- 专利标题(中):开关电容器电路
- 申请号:PCT/AU1988000331 申请日:1988-08-26
- 公开(公告)号:WO1989002192A1 公开(公告)日:1989-03-09
- 发明人: THE UNIVERSITY OF MELBOURNE
- 申请人: THE UNIVERSITY OF MELBOURNE , CHANG, Joseph, Sylvester , TONG, Yit, Chow
- 专利权人: THE UNIVERSITY OF MELBOURNE,CHANG, Joseph, Sylvester,TONG, Yit, Chow
- 当前专利权人: THE UNIVERSITY OF MELBOURNE,CHANG, Joseph, Sylvester,TONG, Yit, Chow
- 优先权: AUPI 19870828
- 主分类号: H03K17/00
- IPC分类号: H03K17/00
摘要:
A time-multiplexed switched capacitor circuit in which certain capacitors are shared during local time periods of a global time period to allow the total capacitance of the circuit to be reduced. Corresponding savings in chip area in an integrated circuit implementation and component savings in a discrete implementation may be achieved. The invention is particularly applicable to a multiplexed circuit comprising an array of capacitors including first and second common capacitors and first and second pluralities of capacitors. The capacitors may be switched into and out of the multiplexed circuit during different local time periods. The first common capacitor may be switched into the circuit when any one of the first plurality of capacitors is involved in the operation of the multiplexed circuit thus reducing the size of that one capacitor of the first plurality of capacitors. In a similar fashion, the first and second common capacitors may be switched into the circuit when any one of the second plurality of capacitors is involved in the operation of the multiplexed circuit.
摘要(中):
一种时间多路复用的开关电容器电路,其中在全局时间周期的本地时间段期间共享某些电容器,以允许减小电路的总电容。 可以实现在集成电路实现中的芯片面积的相应节省以及在离散实现中的部件节省。 本发明特别适用于包括包括第一和第二公共电容器以及第一和第二多个电容器的电容器阵列的多路复用电路。 在不同的本地时间段期间,电容器可以被转换成多路复用电路。 当第一多个电容器中的任一个涉及多路复用电路的操作时,第一公共电容器可以切换到电路中,从而减小第一多个电容器中的一个电容器的尺寸。 以类似的方式,当复用电路的操作涉及第二多个电容器中的任一个时,第一和第二公共电容器可以被切换到电路中。