| 摘要 |
<p>A high-speed analog multiplier circuit (Figs. 3-6) for multiplying two analog inputs (X, Y) comprises a signum generator (21) having an X input multiplier (at 26, 27) and having an output connected to a high-speed electronic switch (22). A Y analog input multiplicand (at 28) is also connected to the high-speed electronic switch (22) and the output of the electronic switch (32, 33) having a positive input (33), a negative input (32) and a resultant output (24) for producing the signum function (X) times Y. The electronic switch (22) is operated by the signum generator (21) so that the presence of a high Q output from the signum generator (21) is effective to connect the Y multiplicand input (28) to the positive input (33) of the differential amplifier (23) and that the presence of a high Q input (27) from the signum generator (21) is effective to connect the Y multiplicand input (28) to the negative input (32) of the differential amplifier (23).</p> |
