发明名称 |
Heater power control circuit and burn-in apparatus using the same |
摘要 |
Provided is a heater power control circuit which switches on/off a voltage signal supplied from a direct-current power source to control a power of a heater by controlling a voltage applied to the heater. The heater power control circuit includes a voltage smoothing circuit that is disposed between the heater and a switching circuit which switches on/off a voltage supplied from the direct-current power source. The voltage smoothing circuit converts the voltage into an analog voltage signal by smoothing a voltage signal obtained by switching on/off the voltage. |
申请公布号 |
US8338758(B2) |
申请公布日期 |
2012.12.25 |
申请号 |
US20050628614 |
申请日期 |
2005.06.07 |
申请人 |
KITA KAZUMI;KURASAWA TADAHIRO;MURAMATSU, LEGAL REPRESENTATIVE YASUO;ADVANTEST CORP. |
发明人 |
KITA KAZUMI;KURASAWA TADAHIRO;MURAMATSU, LEGAL REPRESENTATIVE YASUO |
分类号 |
G01R31/26;H05B1/02;G01R31/28;G01R31/30;G01S1/00;H05B3/00 |
主分类号 |
G01R31/26 |
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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