Decoupling:capacitorsusedindecouplingcircuitsarecalleddecouplingcapacitors,whichareusedinDCvoltagesupplycircuitsofmultistageamplifiers.Decouplingcapacitorseliminateharmfullow-frequencyintersecti***betweeneachamplifier[2].Highfrequencydamping:thecapacitanceusedinthehighfrequencydampingcircuitiscalledthehighfrequencydampingcapacitor.Intheaudionegativefeedbackamplifier,inordertosuppressthepossiblehighfrequencyselfexcitation,thiskindofcapacitorcircuitisused.Toeliminatethehighfrequencyscreamsthatmayoccurintheamplifier[2].Neutralization:capacitorsusedinneutralizationcircuitsarecalledneutralizingcapacitors.Inradiohighfrequencyandmediumfrequencyamplifiers,TVhighfrequencyamplifiers,thisneutralizingcapacitorcircuitisusedtoeliminateself-excitation[2].Timing:capacitorsusedintimingcircuitsarecalledtimingcapacitors.Thetimingcapacitorcircuitisusedinthecircuitthatneedstobechargedbycapacitorandcontrolledbydischarge.Thecapacitorplaystheroleofcontrollingthetimec***tant[2].Integral:capacitorsusedinintegralcircuitsarecalledintegralcapacitors.Inthesynchronousseparationcircuitofpotentialfieldscanning,thefieldsynchronoussignal[2]canbeextractedfromthefieldcompositesynchronoussignalbyusingthiskindofintegralcapacitorcircuit.)