| 摘要 |
A system for adjustment of high voltage from a supply to maintain a substantially constant gradient across a gap between an electrostatically charged source of atomised coating material particles and a target to be coated by the particles, includes a circuit for sensing current flow between the source and target and for feeding a signal related to the sensed current to a high voltage-adjust circuit in the supply. A current flow signal is received at a terminal 618 and fed through a filter circuit 620. The amplified signal is coupled at a terminal 485 to the circuit which establishes the high voltage for the system. The bulk of the supply and control circuitry is identical to that shown in specifications 1591111 and 1591112. <IMAGE> |
