Agilent 34401A Service Guide.pdfIEC Measurement Category II includes electrical devices connected to mains at an outlet on a branch circuit. Such devices include
most small appliances, test equipment, and
other devices that plug into a branch outlet
or socket. The 34401A may be used to make
measurements with the HI and LO inputs
connected to mains in such devices, or to
the branch outlet itself (up to 300 VAC).
However, the 34401A may not be used with
its HI and LO inputs connected to mains in
permanently installed electrical devices
such as the main circuit-breaker panel,
sub-panel disconnect boxes, or permanently
wired motors. Such devices and circuits are
subject to overvoltages that may exceed the
Protection limits of the 34401A.
Note: Voltages above 300 VAC may be measured only in circuits that are isolated from
mains. However, transient overvoltages are
also present on circuits that are isolated
from mains. The Agilent 34401A are
designed to safely withstand occasional
transient overvoltages up to 2500 Vpk. Do
not use this equipment to measure circuits
where transient overvoltages could exceed
this level.
Additional Notices
Waste Electrical and
Electronic Equipment (WEEE)
Directive 2002/96/EC
This product complies with the WEEE Directive (2002/96/EC) marking requirement.
The affixed product label (see below) indicates that you must not discard this electrical/electronic product in domestic
household waste.
Product Category: With reference to the
equipment types in the WEEE directive
Annex 1, this product is classified as a
"Monitoring and Control instrumentation"
product.
Do not dispose in domestic household
waste.
To return unwanted products, contact your
local Agilent office, or see
www.agilent.com/environment/product
for more information.
Agilent 34138A Test Lead Set
The Agilent 34401A is compatible with the
Agilent 34138A Test Lead Set described
below.
Test Lead Ratings
Test Leads - 1000V, 15A
Fine Tip Probe Attachments - 300V, 3A
Mini Grabber Attachment - 300V, 3A
SMT Grabber Attachments - 300V, 3A
Operation
The Fine Tip, Mini Grabber, and SMT Grabber attachments plug onto the probe end of
the Test Leads.
Maintenance
If any portion of the Test Lead Set is worn or
damaged, do not use. Replace with a new
Agilent 3413
對某四輪獨立驅動電動汽車輪轂電機進行研究,設計一種永磁無刷直流電機控制器.以STM32F103RBT6芯片為基礎,對電機驅動電路、采樣電路和保護電路分別進行硬件設計與分析;同時,采用模塊化軟件設計方案,對該控制器的軟件系統進行升級.實驗驗證表明:所設計的電機控制器能使電機響應迅速、轉速穩定、無超調,且電動車動力輸出性能良好.A permanent magnet brushless direct current motor controller was designed by studying the hub motor of a four-wheel independent drive electric vehicle.Based on STM32 F103RBT6 chip,the hardware design and analysis of motor drive circuit,sampling circuit and Protection circuit were carried out respectively.At the same time,modular software design scheme was adopted to upgrade the software system of the controller.Experimental results show that the designed motor controller can ensure the motor fast response,stable speed,no overshoot,and good power output performances.
為適應雙向DC/DC功率變換的電流采樣需求,一種高精度高邊電流采樣電路被提出。其基本思想是在功率電路的高邊串入采樣電阻,借助電流鏡原理并引入偏置電流電路,將雙向電流均轉換為正向電壓輸出。通過理論分析與仿真結合的方法對電流鏡采樣原理及4種不同的偏置電流電路方案進行對比,最后通過實驗數據驗證了高精度高邊電流采樣電路的有效性。實驗數據表明,該采樣電路可在-25~75℃的溫度工作范圍內,針對-10~＋10 A范圍內的電流采樣實現優于5%的采樣精度。Current sensing plays an important role in controlling,monitoring or Protection functions of power systems.To meet the current sensing requirement of bidirectional DC/DC converters,a high-accuracy bidirectional current sensing circuit is proposed.The proposed current sensing circuit inserts a resistor in the path of the current to be sensed,while the current mirror and biased current circuit are introduced.Therefore,the bidirectional current can be expressed by positive voltage.By theoretical analysis and simulation,the sampling theory is analyzed and four biased current circuits are compared.At last,experimental results verified the proposed method.It is demonstrated that the proposed current sensing circuit can achi...
摘要：本文在分析1GBT的動態開關特性和過流狀態下的電氣特性的基礎上，通過對常規的IGBT推挽驅動電路進行改進，得到了具有良好過流保護特性的IGBT驅動電路。該電路簡單，可靠，易用，配合DSP等控制芯片能達到很好的驅動效果Abstract：Based on the studies on the dynamic switching and over-current characteristics of IGBT，this paper makes some improvments to the original push-pull driving circuit，obtains a new IGBT driving circuit which has a good over-current Protection function.The circuit is simple，reliable and easy to use.Combined with controlling chips such as DSP it will do a great job in driving applications.關鍵詞：IBGT：開關特性；驅動；過流保護；Key Words:IGBT；switching characteristics；driving:over-current Protection
CISPR 25:2016 Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the Protection of on-board receivers
MT2625 DatasheetVersion: 1.2Release date: 31 January 2018NB-IoT transceiver? Compliant with 3GPP R13/R14 NB-IoT standard? Supports DL 200kHz bandwidth/UL single tone and multi-tone? Supported RF bands: B1/B2/B3/B5/B8/B11/B12/B13/B17/B18/B19/B20/B21/B25/B26/B28/B31/B66/B70/B71? Supports PSM and eDRX modeMicrocontroller subsystem? ARM? Cortex?-M4 with FPU and MPU? 14 DMA channels? One RTC timer, one 64-bit and five 32-bit general purpose timers? Development support: SWD, JTAG? Crypto engineo AES 128, 192, 256 bitso DES, 3DESo MD5, SHA-1, 224, 256, 384, 512? True random number generator? JTAG password Protection
STM32F驅動L6470 ■ Operating voltage: 8 - 45 V■ 7.0 A out peak current (3.0 A r.m.s.)■ Low RDS(on) Power MOSFETs■ Programmable speed profile and positioning■ Programmable power MOS slew rate■ Up to 1/128 microstepping■ Sensorless stall detection■ SPI interface■ Low quiescent and standby currents■ Programmable non-dissipative overcurrentProtection on high and low-side■ Two levels of overtemperature Protection
STM32F407VET6數據手冊Core: ARM 32-bit Cortex?-M4 CPU with FPU,Adaptive real-time accelerator (ARTAccelerator?) allowing 0-wait state executionfrom Flash memory, frequency up to 168 MHz,memory Protection unit, 210 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSPinstructions
