Analizė aušinimas aušinimas elektrinis litavimas lygintuvas serija prijungtas su diodais
For ordinary diodes, depending on the model, the forward voltage drop of ordinary rectifier diodes is generally around {{0}}.7V, while the forward voltage drop of Schottky diodes is even lower. If the soldering iron is powered by power frequency AC power, the series diode can have a voltage reduction effect, because the AC power is rectified by the diode half wave, and the effective voltage value is reduced by half. However, for DC voltage, the ideal voltage drop of the diode is only 0.7V, and the amplitude of voltage reduction is too small, which has no significant effect on temperature reduction.
To significantly reduce the temperature, the only way is by significantly reducing the voltage. There are two ways to reduce voltage. One is to change the reference voltage of the sampling part of the internal output terminal voltage of the charger, which requires some circuit experience and foundation. Another method is to use a finished DC adjustable step-down module, which changes the output voltage through a variable resistor. And it can be modified to automatically cool down, and detection components can be added to the soldering iron frame. After the soldering iron is placed, the voltage can be automatically lowered.
