larger volume for the capacitors of course the loose coupling and the inserted impedances 11 14 and 17 also serve to reduce the input voltage to the welding station 24 therefore during the on to off transitions of the power transistors 31 the voltage imposed across the transistors 31 will be reduced during the time that the transition current is flowing this reduces the heating of the transistors 31 in the design of a power supply for a welding station the use of a tightly coupled transformer and the elimination of inserted impedances is an obvious design choice and welding stations 24 provide for a high quality of welding operation if this conventional and obvious power supply design is used furthermore it would be expected that the use of a drooping power supply would adversely effect the quality of the welding operations however the use of a loosely coupled transformer and inserted impedances 11 14 and or 17 reduces the heating of the components in the welding station 24 and rather unexpectedly also provides for an even higher quality of welding operation from the above it will be appreciated that the range of permissible voltage drops may be experimentally determined by connecting a desired number of welding stations 24 to the power supply 10 and adjusting the impedances such as by rheostats and or substituting transformers 12 with different coupling factors until the heat dissipated by the components of the welding stations 24 is reduced to an acceptable level and the quality of the welds obtained is still at a satisfactory level it will be appreciated from the above that the present invention is a transformer and a power supply which reduces heating in the components.