DEVICE FOR ESTIMATION OF PULSATION RATE OF DIRECT VOLTAGE Russian patent published in 1997 - IPC

FIELD: electric instruments, in particular, devices which check quality of electric power generated by mobile power supplies. SUBSTANCE: device has analog-to-digital converter 1, reverse counter 2, pulse counter 3, pulse generator 4, pulse counter 5, RS flip-flop 6, digital comparator 7, first and second AND gates 8 and 9, START line 10, OR gate 11, NOT gate 12, investigated signal line 13. Device provides possibility to measure pulsation rate with error of 0.004 %. EFFECT: simplified design. 3 dwg