Supplier: Measurement Specialties, Inc.
Description: constraints. The PWM signal runs on a base frequency of 120Hz and the data signal is provided on SDA line. Pulling SCL high or low allows for switching between humidity and temperature, respectively. The sensor measures twice per second. The PWM signal may be converted to an analog ratiometric interface
- Variables Measured: Relative Humidity, Temperature
- Form Factor: Sensor / Probe
- RH/aw Range: 0.0 to 100 %
- RH/aw Accuracy: 3 to 5 %
Frequency-to-Current Converters - TT230 Series - TT239 Transmitter, Frequency/Pulse/PWM Input, 12-32 DC Loop/Local/Power -- TT239-0600Supplier: Acromag, Inc.
Description: The TT239 model is a space-saving two-wire transmitter that isolates and converts a frequency, pulse, or pulse-width modulation (PWM) input to a proportional 4-20mA signal. You can select to measure either the input frequency or the duty cycle. Power is received from the output loop current or a DC
- Form Factor: DIN Rail
- Operating Temperature: -40 to 176 F
- Vibration Rating: 4 g
- Shock Rating: 25 g
Data Loggers and Data Recorders - USB Data Logger, Oscilloscope, Signal Generator and More! -- DrDAQSupplier: Pico Technology
Description: / arbitrary waveform generator Built-in sensors for light, temperature and sound Measure pH and redox — just plug in any standard electrode Sockets for external sensors including temperature and humidity 4 digital inputs and outputs (alarms, PWM, pulse counting) USB connected and powered
- Analog Input Channels: 14
- Digital I/O Channels: 4
- Sampling Frequency: 1000 kHz
- Form Factor: Printed Circuit Board (PCB)
IC Power Supplies - 4-Phase PWM Controller with 8-Bit DAC Code Capable of Precision RDS(ON) or DCR Differential Current Sensing -- ISL6306IRZ-TSupplier: Intersil Corporation
Description: The ISL6306 controls microprocessor core voltage regulation by driving up to 4 synchronous-rectified buck channels in parallel. Multiphase buck converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple currents. Lower ripple results
- IC Package Type: Other
- Output Voltage (Volt): 0.5000 to 1.6 volts
- Input Voltage (VIN): 3 to 12 volts
- Features: Input Overcurrent Protection
Supplier: National Instruments
Description: general-purpose counter/timers built in. You can access these counters through a parallel digital C Series module such as the NI 9401 or NI 9402 for applications that involve quadrature encoders, PWM, event counting, pulse train generation, and period or frequency measurement. The cDAQ-9184 chassis
- Mounting Style: Rack Mounted
- Backplane Bus / Standard: Other
- Number of CPU Slots: None
- Other Slot Type: Yes
Supplier: ValueTronics International, Inc.
Description: The Chroma Programmable AC source model 61700 series delivers pure, 5-wire, 3-phase AC power. Unlike the traditional 3-phase AC source, it includes low power rating models at very low cost. Users can program voltage and frequency, measure the critical characteristics of the output on its LCD
Supplier: Celeroton AG
Description: RMS current and voltage values can be measured and displayed. By using high bandwidth and fast sampled measurements, high-frequency and PWM losses of the system can be quickly determined.
- Phase: Single-Phase
- Number of Data Channels: 1 to 3
- Electrical Parameters: AC Voltage, AC Current
- Power Quality Parameters: True RMS Voltage, True RMS Current
Supplier: Infineon Technologies AG
Description: to measure the voltage. Summary of Features: Synchronous step down Controller driving currents up to 10A Current limitation adjustable with Shunt resistor or Rdson Adjustable output voltage ± 2% output voltage tolerance External power transistors Integrated bootstrap diode PWM
- IC Package Type: Other
- Configuration / Function: Step-down (Buck)
- Output Voltage (Volt): 1.2 to 40 volts
- Input Voltage (VIN): 4.75 to 45 volts
Amplifier and Comparator Chips - ISL6316Enhanced 4-Phase PWM Controller with 6-Bit VID Code Capable of Precision RDS(on) or DCR Differential Current Sensing for VR10 Application -- ISL6316Supplier: Techwell, Inc.
Description: to Enable VR and Ensure Power Sequencing Control Overcurrent Protection Overvoltage Protection 2, 3 or 4 Phase Operation Adjustable Switching Frequency up to 1MHz per Phase Package Option QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline QFN Near Chip Scale Package
IC Voltage Regulators - ISL63076-Phase PWM Controller with 8 Bit VID Code Capable of Precision RDS(ON) or DCR Differential Current -- ISL6307Supplier: Techwell, Inc.
Description: Sequencing and VTT Enable Thermal Monitoring Programmable Temperature Compensation Overcurrent Protection Overvoltage Protection with OVP Output Indication 2, 3, 4, 5 or 6 Phase Operation Adjustable Switching Frequency up to 1MHz per Phase QFN Package Option QFN Compliant to JEDEC PUB95 MO-220 QFN
- Regulator Category: Switching Regulator
- Regulated Output Voltage (Volt): 0.5000 to 1.6 volts
- Output Current (IOUT): 200 amps
Description: design measures, second generation SSO-Bearings and Noctua's new, custom designed PWM IC for fully automatic control guarantee astounding quietness of operation. The NF-F12 comes with modular cabling, integrated anti-vibration pads and two speed settings for full flexibility. Its commanding
Supplier: VTI Instruments Corporation
Description: frequency and period, to totalize, and to input or output PWM and FM signals. This card is functionally similar to VT1415, except that it can also accept one special type of SCP which allows it measure remote strain inputs. However, for high performance strain measurements, VTI recommends to use EX1629
- Signal Conditioning Type: Digital-to-Analog Converter
- Form Factor: Printed Circuit Board (PCB), Modular Bay / Slot System
- Analog Input Channels: 64
- DC Voltage Input: Yes
Supplier: VTI Instruments Corporation
Description: , the digital capability of SCP range includes the ability to set or sense static states, to measure input frequency and period, to totalize, and to input or output PWM and FM signals. VT1415A comes default with a spring terminal block. However you can choose an option for screw terminal block. Both
- Controller Type: Embedded Controller
- Technology: VXITM Compliant
- Form Factor: 6U x 340 mm (Size C)
- Watchdog Timer: Yes
Supplier: TRINAMIC Motion Control GmbH & Co. KG.
Description: called coolStep™. The ability to read out the load and detect an overload makes the TMC260 an optimum choice for drives where a high reliability is desired at a low cost. The new patented spreadCycle PWM mixed decay chopper scheme ensures best zero crossing performance as well as high speed
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New 2-Wire Frequency/Pulse Measurement Transmitter
thresholds, sample averaging, update rates as fast as 10ms, and so on. ”. Each unit accommodates a variety of signal types selected in the configuration software. The TT239 interfaces unipolar and bipolar input signals with amplitudes up to 120Vrms ( ±170V DC) and frequencies up to 100KHz. It effortlessly converts the input signals to a proportional current output of 4-20mA. The software lets you select whether you measure input frequency or duty cycle, as well as precisely scale input... (read more)
Browse Signal Conditioners Datasheets for Acromag, Inc.
Galil Motion Control
AMP-43240 - 4-Axis Servo Drive
Galil Motion Control, an industry pioneer in motion control technology, is announcing the AMP-43240, the newest member of its multi-axis drive family. The AMP-43240 is a 4-axis servo drive which provides up to 750W per axis. It resides inside Galil's DMC-4040 or DMC-4143 4-axis motion controller enclosure. The packaging of the multi-axis drives with the motion controller saves cost, space and wiring. The new Amp-43240 contains four transconductance, PWM amplifiers for driving brushless servo... (read more)
Browse Servo Drives Datasheets for Galil Motion Control
PERFORMANCE CONTROLS, INC.®
DCD Servo Drive for Battery Operated Applications
available upon request. Please contact Factory, 215-619-4920. FEATURES & BENEFITS. Digital Tuning. Optimizes performance - Drives are programmed to match the motor. Enables cloning. Eliminates pot drift. Reduces inventory by using same drive for multiple applications. Proprietary High Frequency PWM Modulation Technique. Enables quiet operation. Highly responsive control in Torque, Voltage or Velocity* mode. Efficient use of supply voltage. Decreases heating and losses in motor. Multiple Motor... (read more)
Browse Motor Controllers Datasheets for PERFORMANCE CONTROLS, INC.®
PERFORMANCE CONTROLS, INC.®
ACD Servo Drive for Battery Operated Applications
Tuning. · Optimizes performance - Drives are programmed to match the motor. · Enables cloning. · Eliminates pot drift. · Reduces inventory by using same drive for multiple applications. Field Oriented Vector Control. · Optimizes use of voltage. Proprietary High Frequency PWM Modulation Technique. · Enables quiet operation. · Highly responsive control in Torque, Voltage or Velocity* mode. · Efficient use of supply voltage. · Decreases heating and losses in motor. Multiple Motor Types. · Can be used... (read more)
Browse Servo Drives Datasheets for PERFORMANCE CONTROLS, INC.®
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Enhancing Embedded Systems Simulation
Monitor Step Size (CPU Cycles) Sampling Rate PWM Fre- quency (Hz) Measured PWM Fre- quency (Hz) Period Length Diﬀer- ence CPU Cycles Diﬀer- ence per Exchange .
Lighting&Sound America Volume 9 Issue 3 March 2012
The measured PWM frequency was 1.2kHz, fast enough that video use shouldn’t be a problem.
A novel current control strategy for PWM inverters using the sliding mode techniques
In order to adjust a constant PWM frequency, a PI regulator modifies the hysteresis band (HB) according with the measured PWM frequency and the desired mean value .
Multi-carrier interleaved PWM strategies for a new five-level NPC inverter using a 3-phase coupled inductor
For the PWM switching frequency (fC) of 20 kHz, the effective output PWM frequency measured is 40 kHz.
Determination of losses in ferromagnetic circuit of a sinusoidal filter powered with frequency inverter
The losses were experimentally measured for PWM frequency of 6, 8, 10, 12 KHz and partially for 4 kHz as for the limit frequency of the filter.
Learn Electronics with Arduino
As a self discovery exercise, create a spreadsheet with column headings of “Joystick input voltage settings,” “ Measured output PWM frequencies ,” and “Comments.” .
Lighting&Sound America Volume 9 Issue 1 January 2012
I measured the PWM frequency at 1kHz, which should be high enough to avoid flicker problems in most applica- tions.
Lighting&Sound America Volume 7 Issue 3 March 2010
Each LED array has its own driver, and they all appear to run asynchronously (which further confounded my attempts to measure the PWM frequency ).
Lighting&Sound America Volume 12 Issue 1 January 2015
I measured the PWM frequency of the Shapeshifter at 1.95kHz.
Lighting&Sound America Volume 11 Issue 7 July 2014
I measured the PWM frequency at 1.15kHz split across two phases on different emitters, effectively 2.3kHz.
Lighting&Sound America Volume 10 Issue 1 January 2013
I measured the PWM frequen- cy at 300Hz, the same as on the Robin LEDWash.
Losses in sinusoidal filter chokes
Power dissipation was measured for PWM frequencies 6, 8, 10 and 12 kHz, partially for frequency 4 kHz, which is on filter’s low limit border.
Modeling and robust control of self-sensing magnetic bearings with unbalance compensation
Okada,Y., Matsuda, K., and Nagai, B., “SensorlessMagnetic Levitation Control By Measuring PWM Carrier Frequency Component,” Proc. of the 3rd International Symp. on Mag- netic Bearings, pp. 176183, July 29-31, 1992, Alexandria, Virginia, USA.
Power Integrity: Measuring, Optimizing, and Troubleshooting Power Related Parameters in Electronics Systems > Measurement Philosophy
PWM Ramp frequency measured with the standard 1X (C1 in yellow), a passive 10X (M1 in pale yellow) probe, and a 2.5-GHz active probe (M2 in pink).
The module board includes 3-phase PWM inverter 90V, 5A upto 25 kHz PWM frequency and measurement of motor currents in all 3 phases and DC voltage supply is 5 Vdc.