Darlington transistor configuration
E83410
The Darlington transistor configuration is an electronic circuit design that pairs two bipolar transistors to function as a single device with very high current gain and input impedance.
Aliases (3)
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
bipolar junction transistor configuration
→
electronic circuit → transistor configuration → |
| appliedIn |
logic level interfaces
→
motor drivers → power amplifiers → relay drivers → switching regulators → |
| consistsOf |
two bipolar junction transistors
→
|
| hasAdvantage |
ability to drive high current loads directly
→
simplified biasing for high gain stages → very high current gain from low base current → |
| hasAlternativeName |
Darlington pair
→
Darlington transistor pair → |
| hasConnection |
collectors of both transistors connected together
→
emitter of first transistor connected to base of second transistor → emitter of second transistor used as composite emitter output → |
| hasDisadvantage |
higher saturation voltage than single transistor
→
increased power dissipation in saturation → reduced efficiency in low-voltage applications → slower turn-off time → |
| hasFunction |
amplify current
→
drive high current loads from low current sources → provide high input impedance interface → |
| hasParameter |
base-emitter voltage approximately sum of two VBE drops
→
input impedance increased compared to single transistor → overall current gain β ≈ β1 × β2 → saturation voltage approximately sum of two VCE(sat) → |
| hasProperty |
composite transistor
→
high input impedance → high overall current gain equal to product of individual gains → increased saturation voltage → low input current requirement → single transistor-like behavior → slower switching speed compared to single transistor → very high current gain → |
| namedAfter |
Sidney Darlington
NERFINISHED
→
|
| relatedTo |
BJT common-emitter configuration
→
Sziklai pair → complementary Darlington pair → |
| usedIn |
analog circuits
→
digital switching circuits → |
| usedWith |
discrete transistor implementations
→
integrated Darlington transistor packages → |
| usesComponent |
NPN transistor
→
PNP transistor → bipolar junction transistor → |
Referenced by (6)
| Subject (surface form when different) | Predicate |
|---|---|
|
Darlington transistor configuration
("Darlington pair")
→
Darlington transistor configuration ("Darlington transistor pair") → |
hasAlternativeName |
|
Sidney Darlington
→
|
developed |
|
Sidney Darlington
("Darlington pair")
→
|
knownFor |
|
Sidney Darlington
→
|
notableWork |
|
Darlington transistor configuration
("complementary Darlington pair")
→
|
relatedTo |