Whirlpool Corporation

Whrilpool Corporation

Wayne W Conard

Paul S Paget

Rosario Ciancimino

Dan Christian Barfus

Alex Lai

Noah David Zelvis

Ryan W Mill

Rainman Xiao

Jason P Kachorek

Mark C Schmidt

A soft start circuit for a mixer is provided that includes an input for receiving an analog voltage representing a raw target speed; a current mirror for causing a speed target to change at a constant rate when the raw target speed represents a change from a current speed; and a comparator for receiving and comparing the raw target speed and an output from the current mirror and restricting the output from exceeding the raw target speed in order to restrict a soft start to only impede the speed target change when the raw target speed is increasing while not impeding the speed target change when the raw target speed is decreasing. The output of the soft start circuit is an analog representation of a soft start modified desired target speed.

Method and circuit for soft starting a mixer

A method of controlling a portable appliance includes measuring an input current supplied to a motor of the portable appliance and measuring a rotational speed of a shaft of the motor. The method also includes determining a current limit based on the rotational speed of the shaft using a substantially continuous function which relates a domain of rotational speeds to a range of current limits. The method further includes reducing, when the input current exceeds the current limit, the rotational speed of the shaft incrementally along the substantially continuous function until the input current is approximately equal to the current limit.

Portable appliance motor control with speed-based current limitation

A blending appliance includes a housing having a motor compartment and a jar receiving portion spaced laterally therefrom. The jar receiving portion is disposed below an upper housing. A motor is disposed in the motor compartment is adapted to drive a blade assembly of the jar through a magnetic coupling system. The motor is connected to a blade assembly disposed within the jar through a series of gears or belts, and finally through a magnetic coupler. The magnetic coupler is configured such that it stores kinetic energy while the motor is running at a high speed, and releases the stored energy when the motor is running at a slower speed.

Magnetic disk coupler for blending apparatus with energy storage

A mixing system comprising a bowl, mixing element and motor. A mixing element is located within the bowl and is driven by a motor to impart mechanical energy to the foodstuff being mixed upon contact. A method for increasing the power to the motor comprises introducing additional current in advance of instantaneous loading.

Smoothing motor speed during mixing

A mixing system comprising a bowl, mixing element and motor. A mixing element is located within the bowl and is driven by a motor to impart mechanical energy to the foodstuff being mixed upon contact. A method for predicting instantaneous loading on the mixing system motor. A method for increasing the power to the motor comprises introducing additional current in advance of instantaneous loading. A method for identifying the foodstuff being mixed to control operation of the mixer either by allowing user interaction or increasing the current to the motor in advance of instantaneous loading and demands on the motor.

Growing community of inventors

Stevensville, MI, United States of America

Wayne W Conard