Perfect Soldering Iron tip is necessary for good soldering. Here is a simple solution tosave the iron tip. A single diode can increase the life of the soldering tip considerably.
Soldering iron will take few minutes to heat up fully. To avoid this most people keep the soldering iron switched on even if the soldering process in intermittent. This will considerably reduce the life of the soldering tip since excess heat will damage the tip gradually. Moreover there will be an unnecessary loss of electricity.
This arrangement can reduce the damage of iron tip and save energy considerably. An AC switch is by passed by IN 4007 Diode. So the power to the soldering can take two paths. If the switch in the ON position, full AC passes through the switch to the soldering iron. This will heat up the iron very fast. If the switch is in the OFF position, current bypasses through the diode as half AC. So the iron will be in the half warm condition. If the switch is in the on position again, the iron will heat up immediately. So the iron can be kept in the standby mode if there is gap between the soldering.
Filed Under: Electronic Projects