Practical Electronics/Band Pass Filter

Band Pass Filter
Band Pass Filter can be constructed from joining Low Pass Filter network with High Pass Filter network. Therefore, Band Pass Filters can be constructed from joining
 * LR and CR
 * RC and RL

Band Pass Filter LR + CR
Band Pass Filter LR + CR has a stable voltage over a band of frequencies from $$\frac{R}{L}$$ to $$\frac{1}{RC}$$ as long as
 * $$\frac{1}{RC} > \frac{R}{L}$$
 * $$R < \frac{L}{C}$$

Band Pass Filter RC + RL
Band Pass Filter RC + RL has a stable voltage over a band of frequencies from $$\frac{1}{RC}$$ to $$\frac{R}{L}$$ as long as
 * $$\frac{R}{L} > \frac{1}{RC} $$
 * $$R > \frac{L}{C}$$

Summary
In general Band Pass Filter can be constructed by joining bhar main ja
 * 1) RC and RL that has a band pass from $$\frac{1}{RC}$$ to $$\frac{R}{L}$$
 * 2) LR and CR that has a band pass from $$\frac{R}{L}$$ to $$\frac{1}{RC}$$
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! Filters!! Band Pass!! R,L,C 's Value
 * LR - CR || $$\frac{R}{L} - \frac{1}{CR}$$ || $$\frac{1}{CR} > \frac{R}{L}$$
 * RC - RL || $$\frac{1}{CR} - \frac{R}{L} $$ || $$\frac{R}{L} > \frac{1}{CR} $$
 * }
 * RC - RL || $$\frac{1}{CR} - \frac{R}{L} $$ || $$\frac{R}{L} > \frac{1}{CR} $$
 * }