公开(公告)号：US08665009B2

公开(公告)日：2014-03-04

申请号：US13562516

申请日：2012-07-31

申请人： James Edward Myers ,  Parameshwarappa Anand Kumar Savanth ,  David Walter Flynn ,  David William Howard ,  Bal S Sandhu

发明人： James Edward Myers ,  Parameshwarappa Anand Kumar Savanth ,  David Walter Flynn ,  David William Howard ,  Bal S Sandhu

IPC分类号： H01J19/82 ,  G11C5/14

CPC分类号： H02M3/07

摘要： An integrated circuit and method are provided for controlling variation in the voltage output from on-chip voltage generation circuitry. The integrated circuit comprises voltage generation circuitry configured to operate from a supplied input voltage and to generate at an output node an on-chip voltage supply different to the supplied input voltage. A circuit block is then arranged to receive the on-chip voltage supply generated by the voltage generation circuitry, during operation of the circuit block the circuit block presenting a varying load on the output node. Oscillation circuitry is also coupled to the output node to provide an additional load on the output node, and is configured to produce an oscillation signal whose frequency varies as the value of the on-chip voltage supply varies. Control circuitry is configured to be responsive to a trigger condition to adjust the additional load provided on the output node by the oscillation circuitry. This provides a particularly simple and effective mechanism for providing an additional load on the output node which can be altered with the aim of offsetting variation in the load on the output node presented by the circuit block, thus allowing the variation in the voltage output from the on-chip voltage generation circuitry to be controlled.

摘要翻译： 提供一种用于控制片上电压产生电路的电压输出变化的集成电路和方法。 集成电路包括电压产生电路，其被配置为从提供的输入电压进行操作，并且在输出节点处产生不同于所提供的输入电压的片上电压。 然后，电路块被布置成在电路块的操作期间接收由电压产生电路产生的片上电压源，该电路块在输出节点上呈现变化的负载。 振荡电路还耦合到输出节点以在输出节点上提供额外的负载，并且被配置为产生其频率随着片上电压供应的值变化而变化的振荡信号。 控制电路被配置为响应于触发条件来调节由振荡电路在输出节点上提供的附加负载。 这提供了一种特别简单和有效的机制，用于在输出节点上提供额外的负载，其可以被改变，目的是抵消由电路块呈现的输出节点上的负载的变化，从而允许来自 片上电压产生电路要被控制。