A DC converter with a halt mode setting is disclosed for preventing the occurrence
of over-current while alleviating the increase in the size of circuits, along with
a method for setting up such a halt mode. The DC converter includes a semiconductor
switch, a clock generator for outputting a clock signal to a gate of the semiconductor
switch to be utilized for controlling an on/off time of the semiconductor switch
such that a predetermined power is output from the generator, and a drive circuit
for switching the semiconductor switch to the continuous-on state according to
a halt mode setting requirement regardless of the clock signal, when the semiconductor
switch, normally repeating on/off operations responsive to the clock signal, is
in its off-state.
