| 摘要 |
FIELD: electricity.SUBSTANCE: circuit (1) for heating conductor control used to regulate AC power supply to the heating element (21) connected to it contains a breaker (31) having at least three switching states regarding power supplied to the heating element (21), for example two half-waves are connected, positive and negative half-wave is switched off and both half-waves are switched off, and control device (32) to define temperature of the heating element (21) and to select a switching state of the breaker (31) depending on temperature and/or temperature mode set by a user.EFFECT: improving accuracy of control over power supply to the heating element.21 cl, 8 dwg |
