Answer Posted / sachin

First give the sine wave to a full wave rectifier followed
by a filter to get 10v dc output. Use this dc voltage as
supply voltage for a 555 timer used as an astable
multivibrator.The output square wave is then given to the
following ckt to produce the reqd. -ve voltage.

----Capacitor-----d1(c)d1(a)-----------------
| | |
| capacitor Vout
d2(a) | |
d2(c) | |
ground ground ground


d1(c) -diode1 cathode
d1(a) -diode1 anode
d2(c) -diode2 cathode
d2(a) -diode2 anode

Hi, I am an Telceom engineer,I know about LSL,HSL links between various Network Elements. Can anyone explain me about F link in telceom. Regards, Sanchit Bhardwaj

3600

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2247

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1686

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629

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615

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589

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2123

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Please send me RRB Bhopal last 5 years solved Question paper on amrita_jain2001@yahoo.com

2337

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1717

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576

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625

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621

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2144

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details of siemens automation systems.

1441

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Why circuit turn off time should be greater than the thyristor turn-off time?

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