Electronic apparatus for biological research electronicappara00dona Year: 1958 Close at frO Rp*r Figure Combining the equations and differentiating gives d^/g df2 + Rr, + r + «' + «' (1 -k^)Lj )d/2 , dt ^ Wil - a 0 The general solution for this equation is extremely cumbersome, and we shall not concern ourselves with it. There are three particular cases which are of interest, and these are: R I p (1) —^—^—^> Rp + r which we might call the 'lightly loaded case'; (2) (3) Rs + Rl Rs + Rl «2 Rjy-\- r which is approximately the matched condition; <^Rp-\- r the 'heavily loaded case',

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Electronic apparatus for biological research electronicappara00dona Year: 1958 Close at frO Rp*r Figure Combining the equations and differentiating gives d^/g df2 + Rr, + r + «' + «' (1 -k^)Lj )d/2 , dt ^ Wil - a 0 The general solution for this equation is extremely cumbersome, and we shall not concern ourselves with it. There are three particular cases which are of interest, and these are: R I p (1) —^—^—^> Rp + r which we might call the 'lightly loaded case'; (2) (3) Rs + Rl Rs + Rl «2 Rjy-\- r which is approximately the matched condition; <^Rp-\- r the 'heavily loaded case', where the secondary winding is practically short-circuited. The solutions are in the form of values of i^- More useful is y^_B which is the input voltage to the ideal transformer and is /.,(i?s + Rz)ln^. The actual voltage delivered to the load is then n times this. Case (1) (lightly loaded) v^_s = E .e ^^ Case (2) (matched) Va-b -2V 2.{Rj,+r)l _ g (l-k^)L '•) 67

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