DEVICE FOR THICK-FILM RESISTOR TRIMMING Russian patent published in 2014 - IPC H01C17/00 

FIELD: electricity.

SUBSTANCE: device comprises a reference voltage source (1), a comparator (2), a resistance measurer (3), an analogue-to-digital converter (ADC) (4), a multivibrator (5), a shift register (6), the first group of AND elements (7-1…7-n), a data storage unit (8), the second group of AND elements (9-1…9-n), a digital-to-analogue converter (DAC) (10), a torch discharge generator (11), a main electrode (12), a resistor being trimmed (13), a substrate holder (14), an OR element (15).

EFFECT: improved accuracy and stability of torch trimming of thick-film resistors by the discharges of different rate.

1 dwg