Regulator circuit silicon resistor formed


Posted on Nov 10, 2015    7800

By the regulator and the regulator circuit silicon resistor formed Simple voltage regulator circuit is mainly


Regulator circuit silicon resistor formed
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composed of silicon regulator with a resistor, as shown in FIG. FIG vocational DC voltage rectifier filter obtained, the regulator VDZ shame in parallel with the load, because the diode voltage = assume steady work when pressed, should reverse connection, so the regulator should be connected to the positive input into the negative terminal voltage. FIG resistor R is essential, it has two roles: one is to limit current after the reverse breakdown voltage regulator tube to prevent excessive damage to stop the current regulator, so called current limiting resistor R {which is the second is when the grid voltage fluctuations caused by input voltage (ie, rectifying the filtered output voltage) "changes by adjusting the voltage drop across R on to maintain the output voltage substantially constant. However, the presence of two voltage regulator circuit projections disadvantages: one is when the change in grid voltage and load current is too large, the circuit can not be fit to be; the other is the output voltage can not be adjusted in order to improve the above shortcomings, may adopt a series regulator circuit.




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