| 摘要 |
<p>A capacitive load (300) such as the array ground line of a flash memory is initially pulled up towards a positive voltage (350) via a first relatively weak current source (330), and subsequently a stronger source (330,340) is switched to the load. To pull the load down, the pull up sources (330,340) are turned off, and a relatively weak pull-down current source (360,380) switched to the load (300). Subsequently a stronger pull-down source (360,370,380) is switched to the load. The arrangement may avoid high transient currents while ensuring adequate quiescent sourcing ability. <MATH></p> |
