| 摘要 |
A signal generator has matched reference ( 4 ) and modulation ( 6 ) ramp circuits, each including current source ( 8, 32 ), capacitance ( 10 ) charged by the current source, voltage detector ( 18 ) and switch ( 24 ). The output of one of the voltage detectors ( 8 ) controls both switches ( 24 ), and the output of the other voltage detector ( 18 ) is used as the output.
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