ITECH IT-M7700 High Performance Programmable AC Power Supply
YOUR POWER TESTING SOLUTION
Introduction
The ITECH IT-M7700 series is a newly launched High Performance Programmable AC Power Supply that combines intelligence and flexibility. It addresses limitations of traditional AC power sources by offering a compact 1U Half-Rack design, maximizing space utilization. The integrated power meter and arbitrary waveform generator allow for convenient simulation of various waveform outputs. Designed with advanced technologies for programmable AC and DC power supplies, the IT-M7700 is suitable for diverse applications including power energy products, home appliances, industrial electronics, avionics, military, and IEC standards testing.
Key Features
- 1U Half-Rack compact design, increasing space utilization.
- Supports AC, DC, and AC + DC output modes, with DC voltage offset simulation in AC + DC mode.
- Built-in AC power meter with comprehensive measurement functions.
- Includes an abundant waveform database with 30 harmonic distortion waveforms.
- List mode enables simulation of civil AC working conditions and instantaneous power interruption.
- Arbitrary waveform output function allows users to customize waveforms.
- Features Harmonic analysis and Harmonic simulation functions.
- Includes Surge/Trap function for simulating voltage fluctuations.
- Front and rear edge Dimmer phase dimming function for controlling light intensity or speed.
- Settable output waveform start/stop phase angle for various test requirements.
- Supports higher voltage via two units in series connection and three-phase output via three units in Y-type external connections (requires optional accessories).
- Optional interfaces include RS232, CAN, LAN, GPIB, USB_TMC, USB_VCP, and external analog IO, offering flexibility and cost-effectiveness.
- Professional software is available to set up programs compliant with multinational security regulations and test conditions for military, civil aviation, and IEC standards.
* 'Coming soon' indicates features or models not yet released.
Applications
- Energy
- Home Appliance
- Aerospace and Military
- IEC Conformity Test
- Industrial Electronics
- ATS (Automated Test Equipment)
- Testing of commercial and military avionics
- RD, verification, and testing of small-size power supply production
- Communications/Telecommunications
- AC power simulation
- Manufacturing and process control
- Battery or LCD applications
- ATE testing
Product Overview & Design
The IT-M7700 series is designed to overcome the bulkiness and weight issues of conventional AC power supplies. Its 1U Half-Rack size and 4.5kg weight make it highly portable and space-efficient, ideal for bench testing and system integration. This high-power density design allows for greater space utilization compared to traditional units weighing over 10kg.
Visual Description: A comparison graphic shows a conventional AC power supply depicted as large and heavy (over 10kg) next to the compact IT-M7700 series (1U Half-Rack, 4.5kg), with a positive endorsement.
Advanced Waveform Capabilities
Arbitrary Waveforms Output
Users can define custom arbitrary waveforms using the IT-M7700 software and download them to the power supply. This allows for the simulation or duplication of real-world waveforms, enhancing test flexibility.
Visual Description: Screenshots display examples of arbitrary waveforms generated by the IT-M7700, including complex digital patterns, a sine wave with superimposed harmonics, and a triangular wave.
Harmonic Analysis Function
The IT-M7700 series supports up to the 40th order voltage/current harmonic measurements within the 45Hz to 50Hz frequency range. Analysis results are presented clearly in list or columnar formats.
Visual Description: Images show a list view of harmonic analysis data and a bar chart illustrating harmonic components, indicating detailed measurement capabilities.
List Mode
The IT-M7700 LIST mode facilitates complex waveform editing. Users can create up to 5 list files, with each file containing up to 50 steps. Each step allows for parameter settings such as basic waveform type (including THD and user-defined), AC/DC amplitude, slew rate, frequency, dwell time, start/stop phase angle, and repetition count. This feature is valuable for simulating grid disturbances, periodic power outages, and other complex scenarios.
Visual Description: Screenshots illustrate the IT-M7700 LIST mode interface for setting up multi-step waveforms. A diagram shows the connection between the PC software and the IT-M7700 unit.
* Available with ITECH PC software.
Multiple Output Modes: AC, DC, AC+DC
The IT-M7700 series offers AC, DC, and AC+DC output modes. The AC+DC mode allows for the expansion of application fields by enabling tests with DC offset elements.
Visual Description: Waveform examples demonstrate AC+DC outputs, showing a 100Vdc offset combined with a 5Vrms AC signal, and a 50Vdc offset with a 100Vrms AC signal.
Surge / Trap Wave Function
This function allows users to add surge or trap waves to the output sine wave, simulating voltage fluctuations and replicating real-world testing environments.
Visual Description: Screenshots display simulated Surge and Trap waveforms, illustrating voltage fluctuations.
Harmonic Simulation Function
The unit can measure up to 40 harmonic orders within the 45-50Hz frequency range, effectively simulating distorted waveforms to aid in finding solutions for power quality issues.
Visual Description: A graphic shows the IT-M7700 unit with text indicating 'Loading 40 order harmonic components'.
Built-in Abundant Waveform Database
The IT-M7700 series includes user-defined waveforms like square, saw, and triangle, alongside 30 built-in distortion waveforms. These can be edited, recalled, and used as basic waveforms during list programming.
Visual Description: Images showcase the IT-M7700 unit and examples of its built-in waveforms: Sine, Saw, Square, Triangle, Non-linear, Linear distortion, Coil transformer self-excitation, Peak spike, Stepper frequency converter, and Square wave UPS.
Advanced Control and Testing Features
Front and Rear Dimmer Phase Dimming Function
The IT-M7700 series supports front and rear phase angle dimming or speed control tests. Users can adjust active power by setting the phase angle and controlling waveform concealment (leading or trailing edge) to modify light intensity or motor speed. This is used to verify potential quality hazards when using dimming or speed controllers.
Visual Description: Waveform examples illustrate 'Leading Edge phase dimming' and 'Trailing Edge phase dimming'.
Output Waveform Start/Stop Phase Angle is Settable
The initial and stop phases of the output waveform can be set to meet diverse test requirements, within a range of 0-360°. Adjusting the phase angle allows for testing rush current at different positions, applicable to switch current impulse tests and rectifier tests.
Application: LED Driver, Household Appliances
This feature is used for verifying input surge current and power supply disturbance performance for products like LED drivers and household appliances.
Visual Description: A diagram illustrates an IT-M7700 programmable AC power supply connected to an LED driver, with DC output from the driver. The test setup references IEC61000-4-11 and IEC61000-4-13 standards.
Built-in AC Power Meter
The IT-M7700 provides an integrated AC power meter capable of accurately measuring and displaying 12 parameters, including RMS voltage, RMS current, output frequency, active power, and power factor. This eliminates the need for an external power meter, reducing test costs and simplifying connections.
Comprehensive Protection
The series offers comprehensive protection features, including OVP (Over Voltage Protection) rms/peak, UVP (Under Voltage Protection) rms, OCP (Over Current Protection) rms/peak/delay, OPP (Over Power Protection), OTP (Over Temperature Protection), and smart fan dysfunctional protection.
Application Case: Capacitive Load Testing
When testing a capacitive load, high current impulses can cause voltage drops, leading to test failures. Excessive surge current can also damage the AC power supply. Comprehensive protection is crucial in such scenarios. The IT-M7722's voltage and current curves during incandescent bulb testing are shown as an example.
Visual Description: A screenshot displays voltage and current waveforms from testing an incandescent bulb with the IT-M7722, illustrating the effect of high current impulse.
Panel Operation and Remote Control
Users can operate the IT-M7700 easily via its front panel. The unit also supports remote control and ATE system integration through standard interfaces like USB, GPIB, LAN, and RS-232, as well as an analog interface. It supports LXI and SCPI protocols for convenient remote control and monitoring via a web server.
Visual Description: A table lists optional interface modules (IT-E1205 GPIB, IT-E1206 USB/LAN, IT-E1207 RS-232/CAN, IT-E1208 Analog, IT-E1209 USB) and a connection cable (IT-E251). An image shows the rear panel with optional interfaces.
* For three-phase installation and serial connection, the optional accessory IT-E251 is required.
Testing Standards Compliance
EMC Testing
With professional test software, users can easily recall and execute corresponding IEC standard test items for EMC testing. Supported standards include:
- IEC 61000-4-11 / GB/T 17626.11: Voltage dips, short interruptions, and voltage variations immunity tests.
- IEC 61000-4-13 / GB/T 17626.13: Harmonics and interharmonics, including mains signalling at AC power ports, low frequency immunity tests.
- IEC 61000-4-14 / GB/T 17626.14: Voltage fluctuation immunity test for equipment with input current not exceeding 16A per phase.
- IEC 61000-4-17 / GB/T 17626.17: Ripple on DC input power port immunity test.
- IEC 61000-4-28 / GB/T 17626.28: Variation of power frequency immunity test for equipment with input current not exceeding 16A per phase.
Visual Description: A screenshot of the IT-M7700 software interface displays options for EMC testing, referencing various IEC standards.
Compliance Test of Aviation and Ship Electronic Equipment
The IT-M7700 series, with its strong programming capabilities, can test the immunity of aircraft electrical equipment against AC input changes. Using professional software, users can efficiently conduct tests according to standards such as RTCA DO-160D, MIL-STD-704F, ABD0100, Boeing 787B3-0147, and MIL-STD-1399-300B. This covers compliance testing for commercial, military aviation, ship, and submarine electronic equipment.
Visual Description: A diagram shows the IT-M7700 software interface with selections for various aviation and shipboard compliance tests, including IEC61000, Avionics, Shipboard, MIL-STD, and Boeing standards.
Specifications
| Parameter | IT-M7721 | IT-M7722 | ||
|---|---|---|---|---|
| AC Mode Output Rating | DC Mode Output Rating | AC Mode Output Rating | DC Mode Output Rating | |
| AC Input voltage | 100-240Vac (±10%) | |||
| Phase | Single-phase | |||
| Frequency | 47-63Hz | |||
| Max. input current | 2A/4.3A | - | 4A/8.5A | - |
| PF | 0.99 (Typical) | |||
| Max. output power | 300VA | 300W | 600VA | 600W |
| Max. output voltage | 300V | ±400V | 300V | ±400V |
| Output phase | Single-phase | |||
| Current range (rms) | 3A(100V)/1A(300V) | ±0.75A(±100V/±400V) | 6A(100V)/2A(300V) | ±1.5A(±100V/±400V) |
| Current range (peak) | 9A(100V)/3A(300V) | - | 18A(100V)/6A(300V) | - |
| Output frequency range | 45-1000Hz | |||
| Phase angle range | 0-359.9° | |||
| THD*2*4 | ≤0.3% at 45-100Hz; ≤1% at 101-1000Hz | |||
| Crest factor | 3 | |||
| Power mediation rate | ≤0.06% (100V±10%); ≤0.03% (240V±10%) | |||
| Load mediation rate*4 | ≤0.13% (100V); ≤0.04% (200V); ≤0.015% (300V) | |||
| Output voltage | Resolution: 0.1V | Resolution: 0.1V | Resolution: 0.1V | Resolution: 0.1V |
| Accuracy: ±(0.2%×VAC+0.2%×F.S.) *1 | Accuracy: ±(0.2%×VDC + 0.2%×F.S.)*1 | Accuracy: ±(0.2%×VAC+0.2%×F.S.) *1 | Accuracy: ±(0.2%×VDC + 0.2%×F.S.)*1 | |
| Output frequency | Resolution: 0.1 Hz | Resolution: 0.1 Hz | Resolution: 0.1 Hz | Resolution: 0.1 Hz |
| Accuracy: ±0.1% | Accuracy: ±0.1% | Accuracy: ±0.1% | Accuracy: ±0.1% | |
| Phase angle degree range | Resolution: 0.1° | Resolution: 0.1° | Resolution: 0.1° | Resolution: 0.1° |
| Accuracy: 0.5° | Accuracy: 0.5° | Accuracy: 0.5° | Accuracy: 0.5° | |
| DC offset value | Resolution: 20mV | Resolution: 20mV | Resolution: 20mV | Resolution: 20mV |
| Efficiency | 75% (Typical) | - | 80% (Typical) | - |
Meter Ratings
| Parameter | IT-M7721 | IT-M7722 | ||
|---|---|---|---|---|
| AC Voltage | AC Current | AC Voltage | AC Current | |
| Range | 0-300V | 0.1-3A | 0-300V | 0.1-6A |
| Resolution | 0.1V | 10mA | 0.1V | 10mA |
| Accuracy | ±(0.25%×VAC+0.25%×F.S.) *1 | ±(0.25%×IAC + 0.25%×F.S.)*1 | ±(0.25%×VAC+0.25%×F.S.) *1 | ±(0.25%×IAC + 0.25%×F.S.)*1 |
| AC Current (peak) | Range: 0-4.2A | - | Range: 0-8.5A | - |
| Resolution: 10mA | - | Resolution: 10mA | - | |
| Accuracy: ±(0.4%×IP + 0.8%×F.S.)*1 | - | Accuracy: ±(0.4%×IP + 0.8%×F.S.)*1 | - | |
| DC Voltage (VDC) | Accuracy: ±(0.25%×VDC +0.25%×F.S.)*1 | Accuracy: ±(0.25%×VDC +0.25%×F.S.)*1 | ||
| AC Voltage (IDC) | Accuracy: ±(0.25%×IDC + 0.25%×F.S.)*1 | Accuracy: ±(0.25%×IDC + 0.25%×F.S.)*1 | ||
| Frequency | Range: 45 - 1000Hz | - | Range: 45 - 1000Hz | - |
| Resolution: 0.1 Hz | - | Resolution: 0.1 Hz | - | |
| Accuracy: ±0.1%*3 | - | Accuracy: ±0.1%*3 | - | |
| Power | Resolution: 10mVA | - | Resolution: 10mVA | - |
| Accuracy: ±(0.5%×S+0.5%×F.S.)*1 | - | Accuracy: ±(0.5%×S+0.5%×F.S.)*1 | - | |
Other
| Parameter | IT-M7721 | IT-M7722 |
|---|---|---|
| Dimension | 215 x 44.45(1U) x 450 mm | 215 x 44.45(1U) x 450 mm |
| Weight | 4.5KG | 4.5KG |
*1 F.S. value is full voltage range
*2 Min voltage for THD test is 100Vac
*3 Min voltage for frequency display accuracy is 100Vac
*4 Tested with pure resistive load
*5 from 10% to 90% full load
This information is subject to change without notice.
Contact Information
Taipei
Add: No.918, Zhongzheng Rd., Zhonghe Dist., New Taipei City 235, Taiwan
Web: www.itechate.com.tw
TEL: +886-3-6684333
E-mail: taiwan@itechate.com.tw
Factory I
Add: No.108, XiShanqiao Nanlu, Nanjing city, 210039, China
TEL: +86-25-52415098
Web: www.itechate.com
Factory II
Add: No.150, Yaonanlu, Meishan Cun, Nanjing city, 210039, China
TEL: +86-25-52415099
Web: www.itechate.com
Resources:
This information is subject to change without notice. For more information, please contact ITECH.
