US 10,368,394 B2
PTC heater with autonomous control
Jon Shearer, Hartville, OH (US); Carl Aeschliman, Rittman, OH (US); George F. Owens, Akron, OH (US); and Kevin Edward Roach, Stow, OH (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Sep. 1, 2016, as Appl. No. 15/254,209.
Prior Publication US 2018/0063886 A1, Mar. 1, 2018
Int. Cl. H05B 1/02 (2006.01); H05B 3/00 (2006.01); H05B 3/26 (2006.01)
CPC H05B 1/02 (2013.01) [H05B 3/0014 (2013.01); H05B 3/26 (2013.01); H05B 2203/013 (2013.01); H05B 2203/02 (2013.01); H05B 2203/026 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A heating arrangement comprising:
a positive temperature coefficient (“PTC”) heater;
a resistor electrically in series with the PTC heater sized and configured to limit current through the PTC heater and the resistor below a selected value;
wherein said PTC heater is utilized as a floor panel;
wherein said PTC heater has a resistance multiplier that is relatively static at lower temperatures, but increases by a factor of at least 2 across a 10° C. temperature increase as a target temperature is approached; and
wherein said PTC heater has a surface area, and said resistor is a resistance heating element which is within said surface area.