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HIGH SPEED ELECTRONIC LOAD |
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ELS-304 Ultra High Speed Electronic Load |
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ELS-304 Electronic
Load
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.
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Key
Features
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
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Applications
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
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SPECIFICATION |
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Load Section |
| Max. Rated |
Curr. |
120A |
| Volt. |
30V |
| Power |
300W |
| Constant Current 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 |
| Current Limit |
120A |
| Protections |
Over current, over
power, over heat, over volt. reverse connection |
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Measurement Section |
| DC Voltage |
Range |
4.000V |
30.000V |
| Resolution |
0.1mV |
1.0mV |
| DC Current |
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 |
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RIPPLE NOISE Measurement (*4)
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 |
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| 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.
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