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1. 发明授权

US06365988B1 Power controller for setting the power of the electrical loads of an electrical appliance 失效
标题翻译：用于设置电器电气负载功率的功率控制器
公开(公告)号：US06365988B1
公开(公告)日：2002-04-02
申请号：US09453257
申请日：1999-12-02
申请人： Klaus Imer , Rohit Vepari , Jürgen Quiner , Wilfried Klopfer
发明人： Klaus Imer , Rohit Vepari , Jürgen Quiner , Wilfried Klopfer
IPC分类号： H02M300
CPC分类号： H05B1/0213 , H05B3/68 , Y10T307/406
摘要： In a power controller for setting the power of the electrical loads of an electrical appliance, in particular of an electrical cooker, the heating resistance of a load can be connected selectively to the phase voltage of, for example, 230 V or to the line voltage of, for example 400 V. The heating power can be pulsed electromechanically in each switching level, in which case the power pulses which are supplied to the load and are switched on for relatively different times govern the percentage of the heating power. The minimum available heating power of about 2.5 to 3.5% of the maximum heating power is achieved reliably and in the long term in that a lower voltage is applied in the lower power range than in the highest power range. In order to ensure that the bimetallic heating resistor is always connected to a low voltage when the hot plate resistance is connected to two operating voltages (400 V and 230 V), a half-wave rectifier arrangement is provided, which acts on the bimetallic heating resistor only at the higher operating voltage.
摘要翻译：在用于设置电器，特别是电饭煲的电负载的功率的功率控制器中，负载的加热电阻可以选择性地连接到例如230V的相电压或线电压例如为400V。加热功率可以在每个开关电平中以机械电机进行脉冲振荡，在这种情况下，提供给负载并接通相对不同时间的功率脉冲控制加热功率的百分比。最大可靠加热功率为最大加热功率的2.5〜3.5％的最低可用加热功率，长期而言，其功率范围较低，功率范围较低。为了确保当双极金属加热电阻连接到两个工作电压（400 V和230 V）时，双金属加热电阻总是连接到低电压，提供半波整流器布置，其作用于双金属加热电阻只能在较高的工作电压下工作。

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