.我们经营方式灵活，经营手法多样，客户的要求我们会尽量满足。我们能够在香港、新加坡、马来西亚等地看货提货，为外资企业提供了足够的便利。我们的收购范围包括：手机、家电、通讯、电脑、设备、等上的所有电子元件，西安回收U盘上门收购 IC，二、三极管、大小功率管、场效应管、可控硅、三端稳压、整流桥、光耦、继电器、变压器，钽电容、电感、磁珠、电容等！高价回收以下型号：
UPD78F1143AGB(A)-GAH-AX
UPD78F1143AGB-GAH-AX
UPD78F1143AGK(A)-GAJ-AX
UPD78F1143AGK-GAJ-AX
UPD78F1143GB-GAH-AX
UPD78F1144AF1-AN1-A
UPD78F1144AF1-BA4-A
UPD78F1144AGA-HAB-AX
UPD78F1144AGB(A)-GAH-AX
UPD78F1144AGB-GAH-AX
UPD78F1144AGK(A)-GAJ-AX
UPD78F1144AGK-GAJ-AX
UPD78F1144GB-GAH-AX
UPD78F1145AF1-AN1-A
UPD78F1145AF1-BA4-A
UPD78F1145AGA-HAB-AX
UPD78F1145AGB(A)-GAH-AX
UPD78F1145AGB-GAH-AX
UPD78F1145AGK(A)-GAJ-AX
UPD78F1145AGK-GAJ-AX
UPD78F1145GB-GAH-AX
UPD78F1145GK-GAJ-AX
UPD78F1146AF1-AN1-A
UPD78F1146AF1-BA4-A
UPD78F1146AGA-HAB-AX
UPD78F1146AGB(A)-GAH-AX
UPD78F1146AGB-GAH-AX
UPD78F1146AGK(A)-GAJ-AX
UPD78F1146AGK-GAJ-AX
UPD78F1146GB-GAH-AX
UPD78F1146GK-GAJ-AX
UPD78F1152AGC(A)-GAD-AX
UPD78F1152AGC-GAD-AX
UPD78F1152AGK(A)-GAK-AX
UPD78F1152AGK-GAK-AX
UPD78F1152GC-GAD-AX
UPD78F1153AGC(A)-GAD-AX
UPD78F1153AGC-GAD-AX
UPD78F1153AGK(A)-GAK-AX
UPD78F1153AGK-GAK-AX
UPD78F1153GC-GAD-AX
UPD78F1154AGC(A)-GAD-AX
UPD78F1154AGC-GAD-AX
UPD78F1154AGK(A)-GAK-AX
UPD78F1154AGK-GAK-AX
UPD78F1154GC-GAD-AX
UPD78F1154GK-GAK-AX
UPD78F1155AGC(A)-GAD-AX
UPD78F1155AGC-GAD-AX
UPD78F1155AGK(A)-GAK-AX
UPD78F1155AGK-GAK-AX
UPD78F1155GC-GAD-AX
UPD78F1156AGC(A)-GAD-AX
UPD78F1156AGC-GAD-AX
UPD78F1156AGK(A)-GAK-AX
UPD78F1156AGK-GAK-AX
UPD78F1156GC-GAD-AX
UPD78F1156GK-GAK-AX
UPD78F1162AGC(A)-UEU-AX
UPD78F1162AGC-UEU-AX
UPD78F1162AGF(A)-GAS-AX
UPD78F1162AGF-GAS-AX
UPD78F1162GC-UEU-AX
UPD78F1162GF-GAS-AX
UPD78F1163AGC(A)-UEU-AX
UPD78F1163AGC-UEU-AX
UPD78F1163AGF(A)-GAS-AX
UPD78F1163AGF-GAS-AX
UPD78F1163GC-UEU-AX
UPD78F1163GF-GAS-AX
UPD78F1164AGC(A)-UEU-AX
UPD78F1164AGC-UEU-AX
UPD78F1164AGF(A)-GAS-AX
UPD78F1164AGF-GAS-AX
UPD78F1164GF-GAS-AX
UPD78F1165AGC(A)-UEU-AX
UPD78F1165AGC-UEU-AX
UPD78F1165AGF(A)-GAS-AX
UPD78F1165AGF-GAS-AX
UPD78F1165GC-UEU-AX
UPD78F1165GF-GAS-AX
UPD78F1166AGC(A)-UEU-AX
UPD78F1166AGC-UEU-AX
UPD78F1166AGF(A)-GAS-AX
UPD78F1166AGF-GAS-AX
UPD78F1166GC-UEU-AX
UPD78F1166GF-GAS-AX
UPD78F1167AGC(A)-UEU-AX
UPD78F1167AGC-UEU-AX
UPD78F1167AGF(A)-GAS-AX
UPD78F1167AGF-GAS-AX
UPD78F1167GC-UEU-AX
UPD78F1167GF-GAS-AX
UPD78F1168AGC(A)-UEU-AX
UPD78F1168AGC-UEU-AX
UPD78F1168AGF(A)-GAS-AX
UPD78F1168AGF-GAS-AX
UPD78F1168GC-UEU-AX
UPD78F1174AGF(A)-GAT-AX
UPD78F1174AGF-GAT-AX
UPD78F1174GF-GAT-AX
UPD78F1175AGF(A)-GAT-AX
UPD78F1175AGF-GAT-AX
UPD78F1175GF-GAT-AX
UPD78F1176AGF(A)-GAT-AX
UPD78F1176AGF-GAT-AX
UPD78F1176GF-GAT-AX
UPD78F1177AGF(A)-GAT-AX
UPD78F1177AGF-GAT-AX
UPD78F1177GF-GAT-AX
UPD78F1178AGF(A)-GAT-AX
UPD78F1178AGF-GAT-AX
UPD78F1178GF-GAT-AX
UPD78F1184AGJ-GAE-AX
UPD78F1185AGJ-GAE-AX
UPD78F1186AGJ-GAE-AX
UPD78F1187AGJ-GAE-AX
UPD78F1188AGJ-GAE-AX
UPD78F1201MC-CAB-AX
UPD78F1203MC-CAB-AX
UPD78F1211GB-GAF-AX
UPD78F1211MC-GAA-AX
UPD78F1213GA-HAA-AX
UPD78F1213GB-GAF-AX
UPD78F1213MC-GAA-AX
UPD78F1214GA-HAA-AX
UPD78F1215GA-HAA-AX
UPD78F1223GB-GAG-AX
UPD78F1224GB-GAG-AX
UPD78F1225GB-GAG-AX
UPD78F1233GB-GAH-AX
UPD78F1233GK-GAJ-AX
UPD78F1234GB-GAH-AX
UPD78F1234GK-GAJ-AX
UPD78F1235GB-GAH-AX
UPD78F1235GK-GAJ-AX
UPD78F1500AGC-GAD-AX
UPD78F1500AGK-GAK-AX
UPD78F1501AGC-GAD-AX
UPD78F1501AGK-GAK-AX
UPD78F1502AGC-GAD-AX
UPD78F1502AGK-GAK-AX
UPD78F1503AGC-UEU-AX
UPD78F1504AGC-UEU-AX
UPD78F1505AGC-UEU-AX
UPD78F1506AGF-GAT-AX
UPD78F1507AGF-GAT-AX
UPD78F1508AGF-GAT-AX
UPD78F1510AGC-GAD-AX
UPD78F1510AGK-GAK-AX
UPD78F1512AGC-GAD-AX
UPD78F1512AGK-GAK-AX
UPD78F1513AGC-UEU-AX
UPD78F1515AGC-UEU-AX
UPD78F1516AGF-GAT-AX
UPD78F1518AGF-GAT-AX
UPD78F1804AK8A2-3B4-G
UPD78F1804AK8A-3B4-G
UPD78F1804AMCA2-CAB-G
UPD78F1804AMCA-CAB-G
UPD78F1805AK8A2-3B4-G
UPD78F1805AK8A-3B4-G
UPD78F1805AMCA2-CAB-G
UPD78F1805AMCA-CAB-G
UPD78F1806AK8A2-3B4-G
UPD78F1806AK8A-3B4-G
UPD78F1806AMCA2-CAB-G
UPD78F1806AMCA-CAB-G
UPD78F1807AK8A2-3B4-G
UPD78F1807AK8A-3B4-G
UPD78F1807AMCA2-CAB-G
UPD78F1807AMCA-CAB-G
UPD78F1808AK8A2-4B4-G
UPD78F1808AK8A-4B4-G
UPD78F1809AK8A2-4B4-G
UPD78F1809AK8A-4B4-G
UPD78F1810AK8A2-4B4-G
UPD78F1810AK8A-4B4-G
UPD78F1811AK8A2-4B4-G
UPD78F1811AK8A-4B4-G
UPD78F1812AGAA2-GAM-G
UPD78F1812AGAA-GAM-G
UPD78F1812AK8A2-5B4-G
UPD78F1812AK8A-5B4-G
UPD78F1813AGAA2-GAM-G
UPD78F1813AGAA-GAM-G
UPD78F1813AK8A2-5B4-G
UPD78F1813AK8A-5B4-G
UPD78F1814AGAA2-GAM-G
UPD78F1814AGAA-GAM-E3-Q-G
UPD78F1814AGAA-GAM-G
UPD78F1814AK8A2-5B4-G
UPD78F1814AK8A-5B4-G
UPD78F1815AGAA2-GAM-G
UPD78F1815AGAA-GAM-G
UPD78F1815AK8A2-5B4-G
UPD78F1815AK8A-5B4-G
UPD78F1816AGAA2-GAM-G
UPD78F1816AGAA-GAM-G
UPD78F1816AK8A2-5B4-G
UPD78F1816AK8A-5B4-G
UPD78F1817AGAA2-GAM-G
UPD78F1817AGAA-GAM-G
UPD78F1817AK8A2-5B4-G
UPD78F1817AK8A-5B4-G
UPD78F1818AGBA2-GAH-G
UPD78F1818AGBA-GAH-G
UPD78F1819AGBA2-GAH-G
UPD78F1819AGBA-GAH-G
UPD78F1820AGBA2-GAH-G
UPD78F1820AGBA-GAH-G
UPD78F1821AGBA2-GAH-G
UPD78F1821AGBA-GAH-G
UPD78F1822AGBA2-GAH-G
UPD78F1822AGBA-GAH-G
UPD78F1823AGKA2-GAK-G
UPD78F1823AGKA-GAK-G
UPD78F1824AGKA2-GAK-G
UPD78F1824AGKA-GAK-G
UPD78F1825AGKA2-GAK-G
UPD78F1825AGKA-GAK-G
UPD78F1826AGAA2-GAM-G
UPD78F1826AGAA-GAM-G
UPD78F1826AK8A2-5B4-G
UPD78F1826AK8A-5B4-G
UPD78F1827AGAA2-GAM-G
UPD78F1827AGAA-GAM-G
UPD78F1827AK8A2-5B4-G
UPD78F1827AK8A-5B4-G
UPD78F1828AGAA2-GAM-G
UPD78F1828AGAA-GAM-G
UPD78F1828AK8A2-5B4-G
UPD78F1828AK8A-5B4-G
UPD78F1829AK8A2-5B4-G
UPD78F1829AK8A-5B4-G
UPD78F1830AK8A2-5B4-G
UPD78F1830AK8A-5B4-G
UPD78F1831AGBA2-GAH-G
UPD78F1831AGBA-GAH-G
UPD78F1832AGBA2-GAH-G
UPD78F1832AGBA-GAH-G
交流电的过零点检测方案较多，目前较常见的也是我之前所使用的方案如所示：交流电光耦过零检测电路的电路可以检测到交流电经过零点的时间，但是它存在诸多的弊端，现列举如下：电阻消耗功率太大，发热较多。220V交流电，按照有效值进行计算三个47K的电阻平均每个电阻的功率为220^2/(3*47k)/3=114.42mw。对于0805的贴片电阻按照1/8w的功率计算，当前的消耗功率接近其额定功率，电阻发热大较大。