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This work is a CMOS Start Up Circuit designed which can supply the current flow (ISTART) adjustable to the clock oscillator for digital system generally. The circuit designed can be assigned start current value by giving the appropriate reference voltage (VBIAS). The current value is set to adjust in the range of 0 to 1.35 mA. The reference tune voltage is in the range of 0-5V to follow voltage value...
This article is a CMOS Start Up Circuit Designed which can supply the current flow (ISTART) adjustable to the clock generator for digital system generally. The circuit designed can be assigned start current value by giving the appropriate reference voltage. Current value is set to adjust in the range of 0-1.35 mA. The reference tune voltage is in the range of 0-5V to follow voltage value of microcontroller...
This article present the CMOS charge pump circuit which is operated in current mode. MOS transistors in this circuit act as the switches (charge transfer switch) and current source for store the charge from the supply voltage into the fly capacitor and transfer charge from the fly capacitor to the output (output capacitor and resistive load). All of the MOSFET which act as switch operated in saturation...
This paper is to develop the ignition system in spark plug of gasoline engine ignition by increase the sparking pulse at spark plug in one cycle which start form the before top dead center of the engine pistol to the position that the pistol of the engine come to the bottom dead center. So applying of ignition system has four sparking at spark plug in one cycle of each one stroke. This paper divided...
The aim of this project is the construct of portable dust monitoring unit from any area with the diaphragms pump. Dust passes in the impactor and kept by high voltage. Quartz crystals which keep dust occurre difference output frequency and show it on the LCD display. The measurement time was approximately 30-60 minute. Instrument size is 20times30times8 cm and dust size is no bigger than 10 micron.
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