| 摘要 |
PURPOSE:To switch S-correction capacitors at two parts simultaneously by using one switching element by employing first to fourth S-correction capacitors. CONSTITUTION:The capacitance C1' and C2' of the first and second S-correction capacitors 44a and 44b are connected to the capacitance C1 and C2 of the third and fourth S-correction capacitors 49a and 49b in parallel by turning on the switching element 50a, and also, the capacitance C1 and C2 of the third and fourth S-correction capacitors 49a and 49b are separated from the capacitance C1' and C2' of the first and second S-correction capacitors in an AC manner, then, they go to synthetic capacitance C1' and C2'. In such a manner, it is possible to switch the third and fourth S-correction capacitors 49a and 49b by one switching means 501. |
