To perform high-grade control by using an inexpensive microcomputer by processing the predetermined output processing step of the microcomputer as a specified repetition cycle, outputting it to an external filter circuit part and improving precision (resolution).
This D/A output controller 1 is constituted of the microcomputer (8 bits) 2, a filter circuit part 10, an amplifier circuit part 15 and a signal output terminal 18 and the microcomputer 2 is provided with external process input ports 8 and 9 and a D/A output port and is provided with a 10-bit output value operating part 3, an output processing part 4, an 8-bit D/A register part 5 and a ladder resistor net 6 in the inside. At the time of the D/A output of the microcomputer 2 provided with the D/A output port 7, by defining X as an integer equal to or more than 1, processing the predetermined output processing step of the microcomputer 2 as the repetition cycle of the X-th power of 2 and outputting it to the external filter circuit part, the precision (resolution) is improved to (m+X) bits.
| JP4697640 | Combustion device using air-fuel ratio sensor |
| JPS60152817 | GAS APPLIANCE |
OSHIO TADAHIKO
KUBOYA MASAKANE
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