首页>
外国专利>
Digital=analogue converter for count value - is by comparison with clock count value to obtain pulse sequence subsequently integrated by output stage
Digital=analogue converter for count value - is by comparison with clock count value to obtain pulse sequence subsequently integrated by output stage
展开▼
机译:用于计数值的数字=模拟转换器-与时钟计数值进行比较以获得脉冲序列,随后由输出级进行积分
展开▼
页面导航
摘要
著录项
相似文献
摘要
The D/A converter changes the digital information held in a counter (21) into corresponding analogue information and employs a second counter (22) controlled by clock pulses and counting in the same sense. Both counters (Z1, Z2) are coupled to a comparator (k), the output of which is coupled to one input (1) of a bistable circuit (BK). The other input (S) of the latter is supplied with a signal provided when the second counter (Z2) reaches a given value e.g. zero count. The output of the bistable circuit (BK) is supplied to an integration stage (I) which provides the circuit output. A transistor switch (Sch) is inserted between the bistable circuit (BK) and the integration stage (I) supplied with further analogue information (Uref) for combining the latter with the digital input information.
展开▼