| 摘要 |
An astable or a monostable multivibrator includes a single stage, integrated circuit, "or-nor" gate, and timing circuitry intercoupling one or more gate outputs with the gate input. In the case of a monostable multivibrator, a timing capacitor couples the "or" output to the gate input, and a current source provides capacitor charging current to the timing capacitor. In the instance of the astable multivibrator, a timing capacitor also couples the gate's "or" output to the gate input, while a charging resistor is disposed between the gate's "nor" output and the gate input. An additional gate may be employed in conjunction with the astable multivibrator for selectively enabling and disabling operation thereof.
|
