发明名称 |
Input voltage analogue to digital conversion method - using processor to compare input voltage with two other input reference voltages |
摘要 |
The A/D converter inputs (12,11,10) connected through switch (15) and resistor (16) to the inverting input of the comparator (18). Non inverting input of comparator is connected to a reference voltage (13). A D type flip flop (21), clocked by input (14) and circuit (25), receives input from output of comparator (18). The outputs of D type (21) go to circuit (25) and comparator (18) (via inverting amp (19)). A processing circuit (25) comprises time registers (30-34), impulse counter (27) and processor (29). In partic., a high reference voltage (12) and a low reference voltage (11) each produce a specific number of counts from the processor circuit (25) with one then used with input voltage signal at terminal (10). ADVANTAGE - A/D converters less susceptible to component tolerances.e
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申请公布号 |
DE3941293(A1) |
申请公布日期 |
1991.06.20 |
申请号 |
DE19893941293 |
申请日期 |
1989.12.14 |
申请人 |
ROBERT BOSCH GMBH, 7000 STUTTGART, DE |
发明人 |
WOZNY, MARGARETE, DIPL.-ING., 7448 WOLFSCHLUGEN, DE;CHAPMAN, MICHAEL, 7430 METZINGEN, DE |
分类号 |
G01K1/02;H03M1/06;H03M1/60 |
主分类号 |
G01K1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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