- Harold Stephen Black was an American electrical engineer, who revolutionized the field of applied electronics by inventing the negative feedback amplifier in 1927
| When did Harold Stephen Black die? / Died | 11 December 1983 |
Harold Stephen Black Net worth 2024 (estimated)
| | How much is Harold Stephen Black worth? | Under review
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Harold Stephen Black facts
- To some, his invention is considered the most important breakthrough of the twentieth century in the field of electronics, since it has a wide area of application
- This is because all electronic devices (vacuum tubes, bipolar transistors and MOS transistors) are inherently nonlinear, but they can be made substantially linear with the application of negative feedback
- Negative feedback works by sacrificing gain for higher linearity (or in other words, smaller distortion/intermodulation)
- By sacrificing gain, it also has an additional effect of increasing the bandwidth of the amplifier
- However, a negative feedback amplifier can be unstable such that it may oscillate
- Once the stability problem is solved, the negative feedback amplifier is extremely useful in the field of electronics
- Black published a famous paper, Stabilized feedback amplifiers, in 1934
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