Voltage Adjustable Circuit

Published:2011/8/23 23:41:00 Author:Robert | Keyword: Voltage, Adjustable | From:SeekIC

The modern mobile electronic devices is more easier to have this problem than the inchoate devices. In the communication devices and the FM radio, the oscillator voltage is controlled specially. The picture (a) shows the zener diode controller which is used in many car radio circuits. The picture (b) shows a three-segment voltage controller. It could control the mobile transmitter oscillator voltage in 10V. If these controlling components have errors, the circuit would have the frequency drifting. So that the nominal 12V car power is practically unstable.



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