Air cleaner including constant current power supply
View Patent ↗An air cleaner including a constant current power supply is provided according to an embodiment of the invention. The air cleaner includes a collector cell and a constant current power supply coupled to the collector cell. The constant current power supply is configured to maintain a substantially constant electrical current output to the collector cell, compare an output voltage of the constant current power supply to an upper voltage threshold V U and to a lower voltage threshold V L , and shut down the constant current power supply if the output voltage is not between the upper voltage threshold V U and the lower voltage threshold V L .
1. An air cleaner including a constant current power supply, comprising:
a collector cell; and
a constant current power supply coupled to the collector cell and configured to maintain a substantially constant electrical current output to the collector cell, compare an output voltage of the constant current power supply to an upper voltage threshold V U and to a lower voltage threshold V L , and shut down the constant current power supply if the output voltage is not between the upper voltage threshold V U and the lower voltage threshold V L .
2. The air cleaner of claim 1 , with the constant current power supply being further configured to generate a failure indication if the output voltage is not between the upper voltage threshold V U and the lower voltage threshold V L .
3. The air cleaner of claim 1 , wherein the constant current power supply provides short circuit protection.
4. The air cleaner of claim 1 , wherein the constant current power supply provides arc protection.
5. The air cleaner of claim 1 , wherein the collector cell comprises one or both of an ionizer and an electrostatic precipitator.
6. The air cleaner of claim 1 , wherein the upper voltage threshold V U is substantially equal to an open load voltage of the constant current power supply.
7. A method of providing high voltage electrical power to a collector cell of an air cleaner, the method comprising:
maintaining a substantially constant electrical current output from a constant current power supply of the air cleaner to the collector cell;
comparing an output voltage of the constant current power supply to an upper voltage threshold and to a lower voltage threshold V L ; and
shutting down the constant current power supply if the output voltage is not between the upper voltage threshold V U and the lower voltage threshold V L .
8. The method of claim 7 , further comprising generating a failure indication if the output voltage is not between the upper voltage threshold V U and the lower voltage threshold V L .
9. The method of claim 7 , wherein the constant current power supply provides short circuit protection.
10. The method of claim 7 , wherein the constant current power supply provides arc protection.
11. The method of claim 7 , wherein the collector cell comprises one or both of an ionizer and an electrostatic precipitator.
12. The method of claim 7 , wherein the upper voltage threshold V U is substantially equal to an open load voltage of the constant current power supply.
13. A method of providing high voltage electrical power to a collector cell of an air cleaner, the method comprising:
maintaining a substantially constant electrical current output from a constant current power supply of the air cleaner to the collector cell;
comparing an output voltage of the constant current power supply to an upper voltage threshold and to a lower voltage threshold V L ;
shutting down the constant current power supply if the output voltage is not between the upper voltage threshold V U and the lower voltage threshold V L ; and
generating a failure indication if the output voltage is not between the upper voltage threshold V U and the lower voltage threshold V L .
14. The method of claim 13 , wherein the constant current power supply provides short circuit protection.
15. The method of claim 13 , wherein the constant current power supply provides arc protection.
16. The method of claim 13 , wherein the collector cell comprises one or both of an ionizer and an electrostatic precipitator.
17. The method of claim 13 , wherein the upper voltage threshold V U is substantially equal to an open load voltage of the constant current power supply.