| 摘要 |
The invention relates to a method for balancing an output current (i DELTA 1) of a first charge pump (CHP1). The first charge pump (CHP1) comprises a first charging current source (CS1) and a first discharging current source (CS2). The output current (i DELTA 1) of the first charge pump (CHP1) is supplied by at least one said current source (CS1, CS2). The method consists of the following steps: providing a second charge pump (CHP2) with a second charging current source (CS3) and a second discharging current source (CS4), supplying an output current (i DELTA 2) of said second charge pump (CHP2) by at least one said second current source (CS3, CS4), and supplying a reference current (i5) on the basis of the output current (i DELTA 2) supplied by said second charge pump (CHP2). The balancing is conducted by combining said reference current (i5) with the output current (i DELTA 1) supplied by the first charge pump (CHP1). <IMAGE> |
