Dryness detection method for clothes dryer based on pulse width
First Claim
Patent Images
1. A clothes dryer, comprising:
- a dryer bin;
a first conductor in the dryer bin;
a second conductor in the dryer bin;
a switch coupled to the first conductor and configured to generate a pulse when a resistance between the first and the second conductors is lower than a threshold resistance, a length of the pulse corresponding to a length of time that the resistance is lower than the threshold resistance; and
a microcontroller coupled to the switch and configured to receive the pulse and to output a termination signal based on a number of pulses that are longer than a threshold time.
1 Assignment
0 Petitions
Accused Products
Abstract
A device and method are provided for detecting a root moisture content of clothing in a clothes dryer. The dryer has two conducting bars situated in the dryer bin. A pulse generator circuit is coupled to the conducting bars. A microcontroller is coupled to an output of the pulse generator circuit. The pulse generator circuit generates a pulse when wet clothing contacts the conducting bars in the dryer bin. The microcontroller receives the pulses and counts the pulses that are longer than a threshold length. The microcontroller issues a termination signal based on the number of counted pulses.
27 Citations
6 Claims
-
1. A clothes dryer, comprising:
-
a dryer bin; a first conductor in the dryer bin; a second conductor in the dryer bin; a switch coupled to the first conductor and configured to generate a pulse when a resistance between the first and the second conductors is lower than a threshold resistance, a length of the pulse corresponding to a length of time that the resistance is lower than the threshold resistance; and a microcontroller coupled to the switch and configured to receive the pulse and to output a termination signal based on a number of pulses that are longer than a threshold time. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification