摘要:
A synchronous machine regulator is provided to simplify an adjustment work of current distribution to thyristors, the synchronous machine regulator having a circuit board 32 mounting a gate drive circuit 33 for supplying a gate pulse to each of thyristor bridges constituting a plurality of thyristor rectifiers 44 connected in parallel and supplying excitation current to a field winding 2 of a synchronous machine 1, and phase control means 34 for controlling a phase angle of each gate pulse to be supplied to each thyristor, wherein the current distribution to thyristors is controlled by the phase control means 34.
摘要:
An initial delay control data decision circuit detects to which portion of a variable delay circuit a pulse signal of an external clock signal of one cycle is propagated for a predetermined period of time, to determine an initial value for delay control data. Depending on the initial value for delay control data, a delay locked loop circuit configured of the variable delay circuit, a phase comparator circuit, a shift logic circuit, a delay control data holding circuit, a variable constant current circuit and a voltage generating circuit controls phasing of internal and external clock signals.
摘要:
An initial delay control data decision circuit detects to which portion of a variable delay circuit a pulse signal of an external clock signal of one cycle is propagated for a predetermined period of time, to determine an initial value for delay control data. Depending on the initial value for delay control data, a delay locked loop circuit configured of the variable delay circuit, a phase comparator circuit, a shift logic circuit, a delay control data holding circuit, a variable constant current circuit and a voltage generating circuit controls phasing of internal and external clock signals.