Method and apparatus for sensing variable currents within the alternator of a genset that employs an amplifier and a switched feedback resistance
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02H-007/06
H02P-011/00
H02P-009/00
출원번호
US-0695604
(2000-10-24)
발명자
/ 주소
Hintz, David A.
Bornemann, Kenneth R.
출원인 / 주소
Kohler Co.
대리인 / 주소
Quarles & Brady LLP
인용정보
피인용 횟수 :
16인용 특허 :
28
초록▼
A system and method for sensing alternator current levels are disclosed. The system includes the combination including an operational amplifier having an input and an output, an input resistor connecting the input to a signal indicative of an alternator current level, and a feedback resistor connect
A system and method for sensing alternator current levels are disclosed. The system includes the combination including an operational amplifier having an input and an output, an input resistor connecting the input to a signal indicative of an alternator current level, and a feedback resistor connected between the input and the output. The system further includes an adjustment resistor and a switching element coupled in series between the input and the output, in parallel with the feedback resistor, and a processor coupled to the output. The processor is operable, based upon a current indication related to a level of alternator current indicated at the output, to control the operation of the switching element such that the switching element is closed when the current indication increases to exceed a first threshold, and such that the switching element is opened when the current indication decreases to fall below a second threshold.
대표청구항▼
A system and method for sensing alternator current levels are disclosed. The system includes the combination including an operational amplifier having an input and an output, an input resistor connecting the input to a signal indicative of an alternator current level, and a feedback resistor connect
A system and method for sensing alternator current levels are disclosed. The system includes the combination including an operational amplifier having an input and an output, an input resistor connecting the input to a signal indicative of an alternator current level, and a feedback resistor connected between the input and the output. The system further includes an adjustment resistor and a switching element coupled in series between the input and the output, in parallel with the feedback resistor, and a processor coupled to the output. The processor is operable, based upon a current indication related to a level of alternator current indicated at the output, to control the operation of the switching element such that the switching element is closed when the current indication increases to exceed a first threshold, and such that the switching element is opened when the current indication decreases to fall below a second threshold. its derivatives, naphthalene and its derivatives, anthracene and its derivatives, fluorene and its derivatives, bisphenol fluorene and its derivatives, bisphenol S and its derivatives, bisphenol F and its derivatives and bisphenol A and its derivatives.3. A flame-retardant epoxy resin composition according to claim 1, wherein the phenolic resin (C) has a recurring unit represented by either of the following formulas (I) to (IV):(wherein X 1and X2are each independently a C1-6unsaturated chain structure linking group, or a C1-6substituted or unsubstituted alkylene group; and R1is a phenylene group, a biphenylene group or a group derived from these groups).4. A flame-retardant epoxy resin composition according to claim 1, wherein a content of the metal hydroxide is 10% by mass to 70% by mass relative to a total amount of the flame-retardant epoxy resin composition.5. A flame-retardant epoxy resin composition according to claim 1, wherein a content of the metal hydroxide is 5% by mass to 70% by mass relative to a total amount of the flame-retardant epoxy resin composition.6. A flame-retardant epoxy resin composition according to claim 1, wherein the silicone compound contains a unit (T unit) represented by the formula RSiO1.5.7. A flame-retardant epoxy resin composition according to claim 1, wherein the silicone compound contains a group reactive with the epoxy resin and/or the curing agent.8. A flame-retardant epoxy resin composition according to claim 7, wherein the reactive group is hydroxyl group, C1-5alkoxy group, epoxy group or carboxyl group.9. A flame-retardant epoxy resin composition according to claim 1, impregnated and cured into a substrate of a laminate.10. A flame-retardant epoxy resin composition according to claim 1, wherein the metal hydroxide is a metal oxide containing at least one element selected from the group consisting of aluminum, magnesium, zinc, boron, calcium, nickel, cobalt, tin, molybdenum, copper, iron and titanium.11. A flame-retardant epoxy resin composition according to claim 10, wherein the metal hydroxide is aluminum hydroxide, magnesium hydroxide or zinc borate.12. An epoxy resin varnish solution obtained by dispersing the flame-retardant epoxy resin composition set forth in claim 1, in an organic solvent.13. A prepreg obtained by impregnating the flame-retardant epoxy resin composition set forth in claim 1, into a substrate and curing the impregnated composition.14. A flame-retardant epoxy resin composition comprising an epoxy resin, a curing agent, a metal hydroxide, and a silicone compound of a branched structure main chain having an aromatic-derived group, wherein the epoxy resin is a novolac epoxy resin (D) obtained by glycidyletherifying a phenolic hydroxyl group of a phenolic resin (C) containing, in a molecular chain, a structural unit derived from a phenol (A) and a structural unit derived from an aromatic compound (B) other than the phenol (A). 15. A flame-retardant epoxy resin composition according to claim 14, wherein the aromatic compound (B) is a compound selected from the group consisting of biphenyl and its derivatives, benzene and its derivatives, diphenyl ether and its derivatives, naphthalene and its derivatives, anthracene and its derivatives, fluorene and its derivatives, bisphenol fluorene and its derivatives, bisphenol S and its derivatives, bisphenol F and its derivatives and bisphenol A and its derivatives.16. A lame-retardant epoxy resin composition according to claim 14, wherein the phenolic resin (C) has a recurring unit represented by either of the following formulas (I) to (IV):(wherein X 1and X2are each independently a C1-6unsaturated chain structure linking group, or a C1-6substituted or unsubstituted alkylene group; and R1is a phenylene group, a biphenylene group or a group derived from these groups).17. A flame-retardant epoxy resin composition according to claim 14, wherein a content of the metal hydroxide is 10% by mass to 70% by mass relative to a total a
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