Rectifier with capacitor filterसंधारित्र फ़िल्टर सहित दिष्टकारीRectifier with capacitor filter

NCERT Fig 14.20 · Class 12 Physics · Chapter 14 · interactive diagram

Read Chapter 14 with this diagramइस डायग्राम के साथ अध्याय 14 पढ़ेंIs diagram ke saath Ch 14 padhiye All Physics diagramsसभी भौतिकी डायग्रामSaare Physics diagrams

Parts and what they mean

Centre-tap transformer (केंद्र-निष्कासित ट्रांसफ़ॉर्मर) — The secondary has a tapping at its midpoint. Each diode gets only half the total secondary voltage.
ac input (ac इनपुट) — Applied to the primary.
End A of the secondary (द्वितीयक का सिरा A) — Connected to the p-side of D1.
End B of the secondary (द्वितीयक का सिरा B) — Connected to the p-side of D2. Its voltage is always opposite in phase to A (relative to the centre tap).
Centre tap (केंद्र-टैप) — The midpoint of the secondary: one output terminal.
Diode D1 (डायोड D1) — Forward biased when A is positive with respect to the centre tap: conducts in the positive half-cycle.
Diode D2 (डायोड D2) — Forward biased when B is positive: conducts in the other half-cycle.
Common point X (n-sides joined) (उभयनिष्ठ बिंदु X (n-ओर जुड़े)) — The n-sides of both diodes are joined here; output is taken between X and the centre tap.
Load resistor RL (लोड प्रतिरोधक RL) — Gets current in BOTH half-cycles, always in the same direction.
Current through RL (RL में धारा) — From X towards the centre tap in both halves of the cycle.
Wires (तार) — p-sides of D1, D2 to the ends A, B; n-sides joined at X.
Filter capacitor C (parallel to RL) (फ़िल्टर संधारित्र C (RL के समांतर)) — Charges while the rectified voltage rises; without a load it would stay at the peak. With RL it discharges slowly through the load until the next pulse recharges it.
Rectified pulses (without filter) (दिष्टकृत स्पंद (बिना फ़िल्टर)) — Unidirectional but not steady.
(b) Output with capacitor ((b) संधारित्र सहित आउटपुट) — Stays near the peak voltage. The fall between peaks depends inversely on the time constant CRL; a large C gives a smoother dc.
Ripple (उर्मिका (रिपल)) — The small remaining ac variation. Capacitor-input filters are the most widely used in power supplies.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 14.20. Report a mistake