By considering standard notations, the time period of a linear ramp generator in 555 timer is

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UPSC ESE (Prelims) Electronics and Telecommunication Engineering 19 Feb 2023 Official Paper
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Option 3 :
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ST 1: UPSC ESE (IES) Civil - Building Materials
20 Qs. 40 Marks 24 Mins

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Linear ramp generator in a 555 timer, the timing resistor (R) charges the timing capacitor (C) linearly until it reaches a threshold, generating a ramp waveform.

Here, option 3 is correct.

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