Load Star Series
| model : ELS-304 | Ultra Fast Electronic Load |
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ELS-304 is an electronic load capable of creating ultra high-speed slew rate for applications requiring high-speed dynamic load effect. Our newly developed electronic load circuits implemented in the ELS-304 (Japan Patent No. 3458334, 3470296, and 3477619) enables the internal parasite impedance to decrease and the bandwidth and the slew rate to be remarkably improved, realizing as fast as 200A/us (four times faster than our conventional products) even in a low voltage presented.
In addition, since ringing of load effect is minimized and it is possible to start operating just near zero volt., you can use the ELS-304 for evaluating the dynamic load effect of VRM and POL power supplies. And because the slew rate of rising and falling waveforms can be finely setup, you can use the ELS-304 for the current interrupt testing for fuel cells, etc.
- Maximum power 300W
- Low Voltage input operation
- Slew rate setting up to 200A/us
- Ripple Noise Measurement (Factory Option)
- Current Monitor output (Not isolated)
- GP-IB and USB interface
- Evaluation of VRM and POL power supplies requiring dynamic load effect
- Impedance measurement of condensers for transient response
- Over load characteristic test of low volt./large current switching power supplies
- Discharge test of solar batteries and lithium ion batteries
| ELS-304 | Ultra High Speed, low voltage electronic Load |
| RC-02A | Ripple & noise measurement module (Factory option only) |
| LL-050 | Low inductance cable (50cm) |
| LL-100 | Low inductance cable (100cm) |
| LL-200 | Low inductance cable (200cm) |
| ELS-304/REC | Test data for ELS-304 |
| RC-02A/REC | Test data for RC-02A |
| Load Section | |||
|---|---|---|---|
| Max. Rated | Curr. | 120A | |
| Volt. | 30V | ||
| Min operating Volt. | 0.3V (60A) / 0.6V (120A) | ||
| Power | 300W | ||
| Constant Curr. mode | Range | 12A | 120A |
| Nominal Resolution (*1) | 1mA | 10mA | |
| Load Response | 0.2A/us-20A/us | 2A/us-200A/us | |
| Min. rising time | 100ns | ||
| Constant resistor mode | Setting value of 4V volt Range | 0.25ohm or more | 0.025ohm or more |
| Setting value of 30V volt range | 1.25ohm or more | 0.125ohm or more | |
| Constant Volt. mode | Volt range | 4V | 30V |
| Nominal Resolution (*1) | 0.5mV | 5mV | |
| Constant Power mode | Power range | 40W | 300W |
| Nominal Resolution (*1) | 5mW | 25mW | |
| Ext. control mode (in CC mode only) | 0V - 10V / DC-500kHz | ||
| Dynamic mode | Setting Period | 10us - 60s | |
| Resolution | 10us - 5ms | ||
| Operations modes | Continuous, Single | ||
| Slew rate | 0.2A/us - 20A/us | 2A/us - 200A/us | |
| Min. rising time | 100ns | ||
| Curr. Limit | 120A | ||
| Protections | Over current, over power, over heat, over volt. reverse connection | ||
| Measurement Section | |||
|---|---|---|---|
| DC Volt. | Range | 4.000V | 30.000V |
| Resolution | 0.1mV | 1.0mV | |
| DC Curr. | Range (*2) | 10A | 100A |
| Resolution | 0.1mA | 1mA | |
| Power | Meas. method (*3) | [Measured Volt. x measure Curr.] Volt: Load terminal | |
| Ext. I/F | GPIB,USB(USB1.0), Ext. Control Input(0V - 10V) | ||
| General | Power Consumption Power | AC100 - AC240V , 50/60Hz,50VA or less | |
| Sizes | 215(W) x 131.8(H) x 450(D) approx. | ||
| Weight | 8kg | ||
| RIPPLE NOISE Measurement ( external control USB / GP-IB only ) | ||||
|---|---|---|---|---|
| DC Volt. meas. | Range | +-6.0000V | +-60.000V | +-500.00V |
| Resolution | 0.1mV | 1.0mV | 10.0mV | |
| Ripple Noise meas. | Range | 300.0mV | 3000mV | |
| Meas. freq. Range | 20MHz / 100MHz | |||
| Power meas. | Meas. method (*3) | [Measured Volt. x measure Curr.] Volt: Input terminal for Ripple Noise |
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*1 Nominal Resolution: estimated value in each setting mode.
*2 There are two current measurement ranges, one of them is selected due to selected load setting conditions.
*3 Return value is a absolute measured result.
* Company names and product name are its trademarks etc. 2004.Jun
* Specifications are subject to change without notice.
