Chroma 11802 Ripple Current Tester

The Chroma 11802 is a programmable high-frequency AC tester designed for comprehensive testing of electronic components. This instrument serves as a digital-controlled high-frequency AC source platform, capable of being combined with various modules to deliver high-frequency, high-voltage, or high-current test methods. It is particularly suited for applications involving components that operate under high-frequency conditions, such as Switch Mode Power Supply (SMPS) components, LCD inverters, and ballasts. The Chroma 11802 is engineered to simulate operating conditions for devices under test (DUT) through programmable output waveform control and offers digital functions like cycle count or timer modes for load life testing. Its design incorporates a tracking DC source for the output amplifier to reduce power consumption and temperature rise, thereby improving stability for long-term testing and reducing operational costs.

### Technical Specifications

**Main Frame Specifications:**

* **Model:** 11802
* **Rated Output:** 500 VA
* **Output Voltage:** 167V (maximum)
* **Output Current:** 3A (maximum)

**Test Frequency:**

* **Range:** 20 kHz to 200 kHz (covers application frequencies for SMPS, LCD inverters, ballasts, etc.)
* **Extended Range (with modules):** Up to 1 MHz with certain configurations
* **Accuracy Note:** For test frequencies above 100 kHz, multiply the accuracy error by 2 times.

**Output Control and Monitoring:**

* **Programmable Output Waveform Control:** Simulates DUT operating conditions.
* **Output Voltage and Current Monitor:** Allows for real-time observation of test parameters.
* **Constant Voltage (CV) and Constant Current (CC) Modes:** Available for various test types, including load life tests and withstand voltage tests.
* **Tracking DC Source:** Integrated for output amplifier to reduce power consumption and temperature rise.
* **Low Magnetic Flux Leakage Output Transformer:** Reduces output impedance, minimizing DUT impedance impact on test voltage, combined with feedback control for stable output voltage.

**Measurement Functions and Modes:**

* **Load Life Test:** Supports cycle count mode or timer mode for long-term testing.
* **Withstand Voltage Test:** Can perform HF withstand voltage tests in CV and CC modes.
* **Breakdown Voltage Test:** Capable of HF breakdown voltage tests in CV mode.
* **DC Bias Voltage Simulation:** Can be used with a DC Bias Voltage Source to simulate DC bias for capacitors and perform load life tests.
* **Capacitor Testing:** Suitable for dv/dt withstand current specification tests and long-term recording of component temperature rise.

**Modules and Expandability:**

* **High-Frequency Voltage Step-up Modules:**
* A118014: 2.5kV/200mA max.
* A118016: 250V/2A max.
* A118017: 8kV/60mA max.
* A118018: 1kV/1A max.
* A118031: 5kV/100mA max. (with shielding)
* A118032: 1kV/500mA max.
* A118034: 2.5kV/400mA max.
* **High-Frequency Current Step-up Modules:**
* A118011: 10V/50A max.
* A118015: 33V/30A max.
* A118019: 16V/30A max.
* A118037: 30V/25A max.
* **Note:** Module selection is customized based on the tester’s power.

**Interfaces:**

* **RS-485 Interface:** Supports connection with a PC for long-term monitoring of test conditions and results, and remote control setting values (under non-output conditions).
* **Oscilloscope Connector:** Available on high-voltage/current step-up modules for real-time monitoring of DUT voltage and current waveforms.

**Physical and Environmental:**

* **Display:** Large LCD display (320 x 240 dot-matrix).
* **Dimensions (W x H x D):** 440 x 241.5 x 609.8 mm.
* **Weight:** Approximately 32 Kg.
* **Power Consumption:** 2700 VA max. (Note: This appears to be the maximum for the series, individual model VA ratings may differ, e.g., 500VA for 11802 main frame).
* **Power Requirement:** 220Vac ±10%; 48 Hz ~ 62 Hz.
* **Operation Environment:** Temperature: 10℃ ~ 40℃, Humidity: < 90% RH.### ApplicationsThe Chroma 11802 is ideal for quality verification and reliability testing of various electronic components operating under high-frequency and/or high-voltage conditions, including:* LCD Inverter transformers (secondary coils) * High-voltage capacitors * Primary coils of SMPS main power supplies * CCFL, HCFL, EEFL components * Ballast inductors and capacitors * Electrolytic capacitors * Other electronic components used in high-frequency mass current environments### Why Choose Aumictech for Chroma 11802?At Aumictech, we specialize in supplying high-end test and measurement equipment. Whether you need precise high-frequency AC testing capabilities, versatile component stress testing, or integrated solutions for electronic component evaluation, our team ensures the Chroma 11802 delivers maximum performance for your application.