Hybrid power supply systems, methods, and devices for excimer lamps
A sanitization apparatus includes an excimer lamp, a power converter configured to power the excimer lamp and a controller. The controller is configured to monitor an impedance of the excimer lamp and vary an output voltage waveform of the power converter based upon the impedance.
1. A sanitization apparatus comprising:
an excimer lamp;
a power converter configured to power the excimer lamp; and
a controller configured to monitor an impedance of the excimer lamp and vary an output voltage waveform of the power converter based upon the impedance.
2. The sanitization apparatus of claim 1 , wherein the excimer lamp is configured to emit Far-UVC light.
3. The sanitization apparatus of claim 2 , wherein the controller is configured to vary the output voltage waveform of the power converter between a sine waveform and a nanosecond pulse voltage.
4. The sanitization apparatus of claim 2 , wherein the controller is configured to vary the output voltage waveform of the power converter between a first sine waveform comprising a first frequency and a second sine waveform comprising a second frequency, wherein the first frequency is greater than the second frequency.
5. The sanitization apparatus of claim 2 , further comprising a DC power source configured to supply an input power signal to the power converter.
6. The sanitization apparatus of claim 1 , wherein the controller is configured to receive a temperature of the excimer lamp, an output current of the power converter, and an output voltage of the power converter.
7. The sanitization apparatus of claim 6 , wherein the controller is configured to calculate a phase difference between the output current and the output voltage.
8. The sanitization apparatus of claim 7 , wherein the controller is configured to calculate the impedance based upon the phase difference.
9. The sanitization apparatus of claim 8 , wherein the controller is configured to calculate the impedance based upon the temperature of the excimer lamp.
10. A sanitization apparatus comprising:
an excimer lamp;
a power converter configured to power the excimer lamp; and
a control unit having a processor; and
a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the control unit to perform operations comprising:
generating a first voltage waveform with the power converter;
powering the excimer lamp with the first voltage waveform;
monitoring an impedance of the excimer lamp;
detecting that the impedance of the excimer lamp is outside of a threshold envelope;
generating a second voltage waveform with the power converter; and
powering the excimer lamp with the second voltage waveform.
11. The sanitization apparatus of claim 10 , wherein the excimer lamp is configured to emit Far-UVC light.
12. The sanitization apparatus of claim 10 , wherein the first voltage waveform comprises a sine waveform and the second voltage waveform comprises a nanosecond pulse voltage.
13. The sanitization apparatus of claim 10 , wherein the first voltage waveform comprises a first frequency and the second voltage waveform comprises a second frequency, wherein the first frequency is greater than the second frequency.
14. The sanitization apparatus of claim 10 , further comprising a DC power source configured to supply an input power signal to the power converter.
15. The sanitization apparatus of claim 10 , wherein the control unit further performs operations comprising:
receiving a temperature signal of the excimer lamp;
receiving an output current signal of the power converter; and
receiving an output voltage signal of the power converter;
wherein the impedance is monitored using at least one of the temperature signal, the output current signal, and the output voltage signal.
16. A method for powering an excimer lamp, comprising:
generating a first voltage waveform with a power converter;
powering the excimer lamp with the first voltage waveform;
monitoring an impedance of the excimer lamp;
detecting that the impedance of the excimer lamp is outside of a threshold envelope;
generating a second voltage waveform with the power converter; and
powering the excimer lamp with the second voltage waveform.
17. The method of claim 16 , further comprising:
receiving a temperature signal of the excimer lamp;
receiving an output current signal of the power converter; and
receiving an output voltage signal of the power converter.
18. The method of claim 17 , wherein the impedance is monitored using at least one of the temperature signal, the output current signal, and the output voltage signal.
19. The method of claim 18 , further comprising measuring a phase difference between the output current signal and the output voltage signal.
20. The method of claim 19 , wherein the impedance is monitored based upon at least one of the temperature signal of the excimer lamp and the phase difference of the excimer lamp.