Polarity reversing circuit for electrostatic precipitator system

A method of applying electrical energy to an electrostatic precipitator collector which enables operationally effective cleaning using electrical energy, comprising the steps of:

• providing a first and a second power supply, said first power supply having an output polarity opposite said second power supply;
• capacitively accumulating charge at an output of said second power supply;
• applying electrical energy having a first electrical polarity to said electrostatic precipitator collector;
• collecting precipitate on said electrostatic precipitator collector responsive to said electrical energy applying step;
• determining a need for cleaning said electrostatic precipitator collector;
• disconnecting said first power supply from said electrostatic precipitator collector;
• and
• connecting said second power supply and said capacitively accumulated charge to said electrostatic precipitator collector to switch said applied electrical energy from said first electrical polarity to a second electrical polarity opposite said first electrical polarity;
• thereby removing said collected precipitate from said electrostatic precipitator collector responsive to said connecting step;
• and
• resetting said applied electrical energy to said first electrical polarity subsequent to said removing step.