Ionizer feedback control
US12038204B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 23, 2023 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Apr 26, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T19/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The ionizer feedback control converts high-voltage signals to feedback signals to monitor the corresponding high-voltage signals and compares the feedback signals to a first specification to determine whether the feedback signals are within the first specification. The ionizer varies a frequency and a duty cycle of a digital signal to control an excitation signal for a step-up transformer and modulates the frequency and the duty cycle of a step-up transformer output voltage to consistently maintain the feedback signals within the first specification and maintain the high-voltage signals within a second specification to generate consistent ion concentrations over a range of electrical signal inputs. The microprocessor calculates and reports high-voltage signals, and ion concentrations based on feedback signals. The microprocessor monitors concentrations of Volatile Organic Compounds (VOCs) in an airflow serving the ionizer and adjusts the high-voltage signals and ion concentration when VOC concentrations are above a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.