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Why does the base current of a transistor have to be greater than 0.7 V?

Bipolar junction transistor

Insulated-gate bipolar transistor

Heterostructure-emitter bipolar transistor

Field-effect transistor

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Step 1: Answer without citation The base current of a transistor needs to be greater than 0.7 V to maintain saturation during conduction and to achieve proper switch-off time response. It is also essential for controlling the variation of current with respect to time and for avoiding unnecessary power dissipation in the transistor. Step 3: Answer with citation The base current of a transistor needs to be greater than 0.7 V to maintain saturation during conduction and to achieve proper switch-off time response . It is also essential for controlling the variation of current with respect to time and for avoiding unnecessary power dissipation in the transistor .

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Patent Transistor base drive circuit Kenneth C. Shuey, David L. Stechschulte - Show less +1 more 16 Apr 1982 10 Citations	The paper does not provide information on why the base current of a transistor has to be greater than 0.7 V. The provided paper is about a transistor base drive circuit.
Patent Base current regulation circuit for a switching transistor, in particular a bipolar transistor Dipl. Martin Ing Feldtkeller 21 Oct 1988 6 Citations	The paper does not specifically mention the requirement for the base current of a transistor to be greater than 0.7 V. The paper is about base current regulation for switching transistors.
Patent Transistor base current regulator Giordano Raymond Louis 08 May 1986 9 Citations	The provided paper does not contain information about the specific requirement for the base current of a transistor to be greater than 0.7 V. The paper is about a transistor base current regulator.
Patent Base current control means for a switching transistor Colin Dr Hargis 12 Dec 1980 3 Citations	The paper does not specify that the base current of a transistor has to be greater than 0.7 V. The provided paper is about base current control means for a switching transistor in a bridge inverter.

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What is the effect of a transistor base current less than 0.7?5 answersStep 1: A transistor base current less than 0.7 can lead to poor switch-off time response if the transistor is oversaturated, while too low a control current can result in high forward losses. Additionally, the consideration of base current can increase the base transit time by 5 – 8% even in low-injection conditions. Furthermore, a compensated current mirror circuit includes base current error compensation circuits to mitigate base current errors in a current mirror circuit with limited overhead voltage. Step 2: "Context_2" "Context_1" Step 3: A transistor base current less than 0.7 can lead to poor switch-off time response if the transistor is oversaturated, while too low a control current can result in high forward losses. The consideration of base current can increase the base transit time by 5 – 8% even in low-injection conditions. Furthermore, a compensated current mirror circuit includes base current error compensation circuits to mitigate base current errors in a current mirror circuit with limited overhead voltage.

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