| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that, if an overcurrent detecting resistor is built in a hybrid integration circuit, an overcurrent protection level is uniformly decided, and multiple hybrid integrated circuits are required to be prepared according to overcurrent protection levels, requiring multiple types. <P>SOLUTION: An overcurrent detecting resistor Rs is built in a hybrid integrated circuit board. A detection voltage from the overcurrent detecting resistor Rs is amplified by an amplifier 4 and then divided by divider resistors R<SB>3</SB>and R<SB>4</SB>, which is compared to a reference voltage at an overcurrent detection circuit for protection against an overcurrent. One of the divider resistors R<SB>3</SB>and R<SB>4</SB>is connected in series or parallel to an external resistor R<SB>5</SB>to change a division rate, thus an overcurrent protection level can be adjusted. <P>COPYRIGHT: (C)2004,JPO |
