| 摘要 |
<p>PURPOSE:To reduce electric power loss, by connecting adjacent heating resistors in series with one another, dividing the connection nodes into two groups and coupling the connection points to common lines in a prescribed manner. CONSTITUTION:Adjacent heating resistors R1-R24 are connected in series with one another. The connection nodes are alternately divided into the first and the second groups. Every three or more connection nodes of the first group are coupled to N common lines Si (i=1-N). The connection nodes of the second group are coupled to M common lines Cj (j=1-M) through every five or more heating resistors. When a voltage is applied between terminals M1, N1, for example, only the heating resistor R1 is caused to heat and the other heating resistors hardly heat. This results in reducing electric power loss.</p> |
