Invention Grant
- Patent Title: Paint sprayer with dynamic pulse width modulation driven motor
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Application No.: US16476955Application Date: 2018-01-15
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Publication No.: US11323051B2Publication Date: 2022-05-03
- Inventor: Tyler J. Kruzel
- Applicant: Graco Minnesota Inc.
- Applicant Address: US MN Minneapolis
- Assignee: Graco Minnesota Inc.
- Current Assignee: Graco Minnesota Inc.
- Current Assignee Address: US MN Minneapolis
- Agency: Kinney & Lange, P.A.
- International Application: PCT/US2018/013711 WO 20180115
- International Announcement: WO2018/132790 WO 20180719
- Main IPC: H02P6/14
- IPC: H02P6/14 ; H02P8/16 ; H02P7/29 ; H02P7/03 ; B05B9/08 ; H02M7/219

Abstract:
A fluid sprayer includes a housing, a pump, a nozzle, a high voltage direct current (HVDC) brushed electric motor that drives the pump, and a motor controller electrically connected to the motor. The motor controller drives the motor with a high speed pulse width modulated (PWM) drive signal that switches current through the motor on and off. The motor controller varies the PWM signal as a function of a spray setting input and sensed current through the motor.
Public/Granted literature
- US20190356253A1 PAINT SPRAYER WITH DYNAMIC PULSE WIDTH MODULATION DRIVEN MOTOR Public/Granted day:2019-11-21
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