发明名称 |
Heating apparatus |
摘要 |
A heating unit includes two tubular tungsten-halogen lamps, each having a tungsten filament. The lamps are supported within a ring of ceramic fibre material and the unit is preferably mounted beneath an infra-red-transmissive cooktop to define a hotplate area of a cooking hob. A control circuit provides a range of discrete power outputs of the lamps, each power output corresponding to a power control setting set by a user of the cooking hob. The circuit includes a phase control circuit for switching power to the lamps at a predetermined phase angle to achieve one or more of the lower power outputs.
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申请公布号 |
US4758710(A) |
申请公布日期 |
1988.07.19 |
申请号 |
US19870098704 |
申请日期 |
1987.09.18 |
申请人 |
THORN EMI APPLIANCES LIMITED |
发明人 |
CROSSLEY, PETER W.;FELLERMAN, BERNARD F.;NEWTON, STEPHEN J.;WELLCOME, DAVID |
分类号 |
H05B3/10;H05B3/74;(IPC1-7):F24H3/00;H05B1/00;H05B3/02 |
主分类号 |
H05B3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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