Drive Circuit with Integrated Power Factor Correction for Blender/Shaver Machine
First Claim
1. A machine that at least one of blends liquids and shaves ice, the machine comprising:
- a motor that operates an impeller for one of blending liquid and shaving ice; and
a control system that controls the motor, the control system adapted to be connected to a mains power line and to receive inputs from a switch interface, the control system includingan integrated power factor correction circuit which receives input power from the mains power line, the integrated power factor correction circuit reducing noise transmitted to the mains power line and providing a boosted, regulated output voltage for use with the control system, anda drive circuit connected to the motor, the drive circuit using the regulated output voltage in order to control an effective voltage applied to the motor based on the inputs from the switch interface substantially independent of the voltage and frequency of the input power.
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Accused Products
Abstract
Embodiments of the invention provide a machine that blends liquids and/or shaves ice. The machine includes a motor and a control system with an integrated power factor correction circuit and a drive circuit. The integrated power factor correction circuit receives input power from a mains power line, reduces noise transmitted to the mains power line, and provides a boosted, regulated output voltage. The drive circuit is connected to the motor and uses the regulated output voltage in order to control an effective voltage applied to the motor substantially independent of the voltage and frequency of the input power.
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Citations
20 Claims
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1. A machine that at least one of blends liquids and shaves ice, the machine comprising:
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a motor that operates an impeller for one of blending liquid and shaving ice; and a control system that controls the motor, the control system adapted to be connected to a mains power line and to receive inputs from a switch interface, the control system including an integrated power factor correction circuit which receives input power from the mains power line, the integrated power factor correction circuit reducing noise transmitted to the mains power line and providing a boosted, regulated output voltage for use with the control system, and a drive circuit connected to the motor, the drive circuit using the regulated output voltage in order to control an effective voltage applied to the motor based on the inputs from the switch interface substantially independent of the voltage and frequency of the input power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A blender comprising
a motor that operates an impeller; - and
a control system that controls the motor and is adapted to receive an input power, the control system including an integrated power factor correction circuit which receives and regulates the input power, the integrated power factor correction circuit providing a regulated output voltage for use with the motor, and a microcontroller in communication with the integrated power factor correction circuit and the motor, the microcontroller capable of detecting a high load condition on the motor, the microcontroller modulating the regulated output voltage from the integrated power factor correction circuit to provide a temporary burst of power in order to overdrive the motor and overcome the high load condition. - View Dependent Claims (16, 17)
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18. A method for controlling a motor in a blender, the method comprising
receiving power from a mains power line; -
boosting and regulating the received power using a power factor correction circuit in order to provide input power to the motor; monitoring the speed of the motor; determining a high load condition on the motor based on the monitored speed; and providing a temporary increased input power to the motor in order to overdrive the motor and overcome the high load condition. - View Dependent Claims (19, 20)
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Specification