thermal_resistance

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thermal_resistance [2020/07/19 01:50] stan_zurek |
thermal_resistance [2020/07/19 01:51] stan_zurek |
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There are several empirical equations linking the size and shape of a given class of devices. For example for [[EE (ferrite)|EE]], | There are several empirical equations linking the size and shape of a given class of devices. For example for [[EE (ferrite)|EE]], | ||

- | | <$R_{th} = 53 · (V_{core})^{-0.54}$ </ | + | | $$ R_{th} = 53 · (V_{core})^{-0.54} $$ |

where: // | where: // | ||

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Empirical data given by [[Epcos]] also suggest that the thermal resistance is roughly proportional to the reciprocal of square root (power of -0.5) of the ferrite core volume, which is in agreement with the previous equation: | Empirical data given by [[Epcos]] also suggest that the thermal resistance is roughly proportional to the reciprocal of square root (power of -0.5) of the ferrite core volume, which is in agreement with the previous equation: | ||

- | | <$R_{th} = \frac{x}{\sqrt{V_{core}}}$ </ | + | | $$ R_{th} = \frac{x}{\sqrt{V_{core}}} $$ |

- | where //x// is the proportionality factor. | + | where $x$ is the proportionality factor. |

===== Importance ===== | ===== Importance ===== |

thermal_resistance.txt · Last modified: 2020/07/19 01:51 by stan_zurek