Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2004.06b
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- Pages.395-398
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- 2004
High-linearity voltage-controlled current source circuits with wide range current output
넓은 범위의 전류 출력을 갖는 고선형 전압-제어 전류원 회로
- Cha, Hyeong-Woo (School of Information & Communication Eng., Chongju Univ.)
- 차형우 (청주대학교 정보통신공학부)
- Published : 2004.06.01
Abstract
High-linearity voltage-controlled current sources (VCCSs) circuits for wide voltage-controlled oscillator and automatic gun control were proposed. The VCCS consists of emitter follower for voltage input, two common-base amplifier which their emitter connected for current output, and current mirror which connected the two amplifier for large output current. The VCCS used only five transistors and a resistor without an extra bias circuit. Simulation results show that the VCCS has current output range from 0mA to 300mA over the control voltage range from 1V to 4.8V at supply voltage 5V. The linearity error of output current has less than
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