Op-Amps

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Across
  1. 3. Vout/Vin
  2. 6. An electrical component that only allows current to flow through it in one direction
  3. 9. A device which converts kinetic energy into electrical energy.
  4. 10. For a non-inverting amplifier, gain = _____ + R2/R1
  5. 12. Phase difference in degrees between any two phases of a three-phase power distribution system.
  6. 14. Meaning of X in XOR
  7. 15. Much like a ______meter, op-amps have very high input impedance.
  8. 16. An ideal op-amp set up as an ‘open loop’ has _____________ gain.
  9. 21. An op-amp circuit that uses a negative feedback loop to reduce gain (9,9)
  10. 22. _______ wound motors are suitable for lathes, centrifuges and pumps.
  11. 24. Logic gate where both inputs have to be 1 to give an output of 1
  12. 25. Example of a logic gate which gives an output of 0 when both inputs are 1
  13. 26. In a shunt wound generator or motor the field winding and armature are connected in ____________.
  14. 27. _______ wound motors are suitable for cranes, winches and starter motors
Down
  1. 1. Stabilised Power Supply Block Diagram: Transformer – Rectifier – Smoothing - ___________?
  2. 2. The property of an op-amp’s output that means the output voltage can be transmitted very efficiently to an external load (3,9)
  3. 4. The inverting input of an op-amp phase shifts the voltage by _____ degrees
  4. 5. The process of turning AC to DC
  5. 7. Logic gate where either input has to be 1 to give an output of 1
  6. 8. A series wound DC motor is able to produce high ________ at low speeds.
  7. 11. -Rf/Rin
  8. 13. Unabbreviated Op-Amp (11,9)
  9. 17. For an open loop op-amp circuit, large gains can only be produced for low ___________ voltages.
  10. 18. Logic gate with a single input
  11. 19. Type of op-amp circuit for combining voltages
  12. 20. 0V
  13. 23. Op-amps amplify the ___________ between the voltages at the two inputs.