Differences

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--- audio_engineering:class_b_power_calculations [2022/12/13 20:35] – [Power Calculations for Class B Amplifiers] mithat
+++ audio_engineering:class_b_power_calculations [2023/08/01 23:47] (current) – [Maximum power dissipation] mithat
@@ Line 12: / Line 12: @@
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-<html><b>Power into the load</b></html>
+**Power into the load**
 `bar(P_L) = (v_(op))^2/(2R_L)`
@@ Line 18: / Line 18: @@
 The maximum power into the load happens when `v_(op)` is at its maximum possible value of `V_(C C)`.
-===== Required supply power =====
+===== Required supply power for given output =====
 We start by calculating `bar(P_S)_(V+)`, the average power over one cycle delivered by the power supply to the transistor connected to `V_(C C)` (i.e., the "positive" transistor). Letting `i_(C+)` be the collector current flowing through that transistor, this is calculated as:
@@ Line 63: / Line 63: @@
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-<html><b>Required supply power</b></html>
+**Required supply power for given output
-`bar(P_S) = 2/pi * v_(op)/R_L * V_(C C)`
+**`bar(P_S) = 2/pi * v_(op)/R_L * V_(C C)`
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@@ Line 78: / Line 78: @@
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-<html><b>Maximum required supply power</b></html>
+**Maximum required supply power**
 `bar(P_S)_max = 2/pi * (V_(C C))^2/R_L` \\ or \\
@@ Line 124: / Line 124: @@
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-<html><b>Maximum power dissipation</b></html>
+**Maximum power dissipation**
 `P_(Dmax) = 2/pi^2 * (V_(C C))^2/R_L`\\ or\\
 `P_(Dmax) = 4/pi^2 P_(L max)`
-<html><b>occurs when</b></html>
+**occurs when**
 `v_(op) = 2/pi V_(C C)`
@@ Line 157: / Line 157: @@
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-<html><b>Maximum power efficiency</b></html>
+**Maximum power efficiency**
 `eta_max ~~ 78.5%`
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