what is a voltage controlled oscillator?

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The output of a 60hz full-wave bridge rectifier has a 60 hz ripple. It this circuit working properly?

0 Answers  

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is transformer, active or passive device? name some active and passive devices.

9 Answers   HSBC,

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how to find the fault in smps if i am not getting the output

0 Answers   Philips,

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What are the advantages of pwm control?

0 Answers  

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what is the minimum and maximam trace width in PCB design? why trace is measured in mils? what is the use of via? why the crystal oscillator is placed near chip?

0 Answers   Wipro,

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Explain the working of current commutated chopper with aid of circuit diagram and necessary wave forms. Derive an expression for its output voltage?

0 Answers  

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in microcontroller why processor is used why not controller?

3 Answers   Infosys,

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hi friends.any one tell me pattern for mt exam for steel plant..plz plz plz..

0 Answers  

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sampler means

3 Answers   Assurgent,

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Define beta of a transistor.

0 Answers  

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Sir, Plz send the last 5 yrs ques papers for Railway board's section engineer post. Thanks, c_k_chand@yahoo.co.in

0 Answers  

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