Invention Grant
- Patent Title: Analog control loop with digital feedback
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Application No.: US15924735Application Date: 2018-03-19
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Publication No.: US11112810B2Publication Date: 2021-09-07
- Inventor: Joseph M. Lepley , Steven B. Pirko
- Applicant: HOERBIGER KOMPRESSORTECHNIK HOLDING GMBH
- Applicant Address: AT Vienna
- Assignee: HOERBIGER KOMPRESSORTECHNIK HOLDING GMBH
- Current Assignee: HOERBIGER KOMPRESSORTECHNIK HOLDING GMBH
- Current Assignee Address: AT Vienna
- Agency: Fay Sharpe LLP
- Main IPC: G05F1/12
- IPC: G05F1/12 ; G01R19/10 ; G01R19/25 ; G01R33/07 ; G05F1/10

Abstract:
A circuit for controlling current flow to an associated inductive load is provided. The circuit includes a switching element having an open state and a closed state that intermittently connects an associated power supply to the inductive load when the switching element is in the closed state, a switch driver that generates a switch drive signal provided to a control element of the switch that controls the state of the switch to be the open state or the close state based on a desired load current set point and a feedback signal, a current sensor that measures a current flowing through the switching element and the load and generates a sensed current signal, and a summing circuit that adds a representation of the sensed current signal and a supplemental signal comprising a representation of the switch drive signal to generate the feedback signal.
Public/Granted literature
- US20190286177A1 ANALOG CONTROL LOOP WITH DIGITAL FEEDBACK Public/Granted day:2019-09-19
Information query
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