| 摘要 |
PURPOSE:To detect current with high accuracy at all times even when the in-plane distribution of currents in a transistor is changed by the effect of transient heat, etc. CONSTITUTION:A base B and a collector C are used in common and emitters are mounted respectively independently in a main transistor section 6 and a plurality of sense transistor sections 7 detecting currents flowing through the main transistor section 6. Each sense transistor section 7 is arranged at unbiased positions, and all emitters are short-circuited and one sense emitter terminal Es is set up. The sum of currents flowing through all sense transistor sections 7 is used as sense currents. Even when the in-plane distribution of currents is changed by transient heat, etc., sense currents as the sum of currents flowing through all sense transistor sections 7 are not varied. |
