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1. Two circuit are simulated, including voltage and current amplifier.

2. Maglev chopper is the switch mode current amplifier on EMS maglev train, and the input current ripple is significant.

3. CMOS capacitively coupled current amplifier that has narrow-band characteristic is presented. And it′s theory and simulation results were compared with the simple source coupled current amplifier.

4. The buffer differs from the current amplifier as it sets out to provide whatever current level is demanded from it in order to maintain the signal voltage told to assert .

5. Using the EBIC signal from the absorption current amplifier in SEM, we have studied P-N junctions and their depletion layers in ICs. We also Commenton the principles of our experiments.

6. However, a current amplifier always tries to multiply the current by a set amount.

7. The controller includes a current amplifier, an initial current path, and at least two weighted current paths.

8. The experiment shows that if the current amplifier factor is big, Junction J_3 is hard and the ineffective trigger branch current is low, the turn-on time can be shorten effectively.

9. In these situations we require either a current amplifier or a buffer .

10. The capacitive coupled current amplifier is used herein as the basic feedback unit of the VCO and the oscillation frequency is controlled through MOS capacitance in the output.

11. The I-V and V-F converter design for mode of feedback current amplifier is introduced. Method of reducing noise disturbance is discussed in detail.

12. In one design, the VCO includes a voltage-to-current converter, a current amplifier, a summer, and a current-controlled oscillator (ICO).

13. Therefore, the proposed structure could satisfy the demands of large-capacity systems because each compensation winding has a low demand to the current amplifier.

14. A control circuit which is composed of a capacitor and a current amplifier is connected in a coil circuit in series.

15. Two kinds of methods such as lead net rectification and negative feedback rectification are proposed, which can increase the output current speed of the current amplifier.

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16. In this paper, some questions in the design of photoelectric current amplifier are discussed combined with the characteristic of sil- licon photodiode and a instance.

17. In this paper, a method used to amplify faint direct current signal is put forward, and the circuits of direct current amplifier to realize the method are devised.

18. The continuous monitoring system consists of a high pressurized ionization chamber , integrated weak current amplifier, V/F converter and intelligent data recorder.

19. The applications and the hardware including gradient waveform generator, gradient current amplifier and gradient coil are also presented.

20. The design method, operational principle and circuit process of programmable weak current amplifier based on ICL7650 were introduced, and the amplifiers circuits were partially given.