Title :
A temperature-insensitive VCO and derivative PWM signal generator
Author :
Siripruchyanun, Montree ; Wardkein, Paramote
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
A novel Schmitt trigger oscillator able to generate square/triangular wave is proposed. Its advantages are that the oscillation frequency and amplitudes are independent of not only temperature but also power supply voltage. Electronic adjustment of the oscillation frequency can be obtained with wide sweep range and DC offset adjustment available. In addition, the proposed scheme can produce frequency-constant derivative of PWM signal
Keywords :
pulse width modulation; square-wave generators; trigger circuits; voltage-controlled oscillators; waveform generators; DC offset adjustment; Schmitt trigger oscillator; derivative PWM signal generator; frequency-constant derivative; oscillation frequency; power supply voltage; square wave; sweep range; temperature-insensitive VCO; triangular wave; Capacitors; Frequency; Operational amplifiers; Power engineering and energy; Pulse width modulation; Resistors; Signal generators; Trigger circuits; Voltage; Voltage-controlled oscillators;
Conference_Titel :
ASIC, 2001. Proceedings. 4th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-6677-8
DOI :
10.1109/ICASIC.2001.982538
