Brand: Lake Shore | Category: Nanotechnology

The Model 643 is a bipolar, 4-quadrant DC current source for driving laboratory electromagnets. It supplies up to +/-70 A at +/-35 V nominal, 2450 W, using fully linear regulation to keep current ripple low. The 4-quadrant output lets the field be swept through zero.
| Parameter | Value |
|---|---|
| Type | Bipolar, 4-quadrant, DC current source |
| Current range | +/-70 A |
| Compliance voltage (DC) | +/-35 V nominal |
| Power | 2450 W nominal |
| Current ripple | 5 mA RMS (0.007%) at 70 A into nominal load |
| Slew rate | 50 A/s into nominal load, 100 A/s maximum into a resistive load |
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Contact Vvon Technologies Limited about Lake Shore equipment requirements in Bangladesh.
Phone: +8801805987890 | Email: info@vvon.com.bd
The Model 648 is a 9 kW bipolar, 4-quadrant DC current source for large research electromagnets. It delivers up to +/-135 A at +/-75 V into a nominal 0.5 ohm, 0.5 H load, with 10 mA RMS current ripple. Protection covers short circuit, line faults and over temperature.
The EM-4V and EM-7V are laboratory electromagnets with indexed ExactGAP air gap settings and interchangeable pole caps. With the optional high-field 2 in pole face at a 7.5 mm gap they reach 2.76 T and 3.22 T. Field falls as the air gap or the pole face diameter increases.
The Model 625 is a bipolar, 4-quadrant current source for small to medium superconducting magnets used in materials research. It supplies up to +/-60 A at +/-5 V with 0.1 mA setting resolution and quench protection. Two units can be paralleled for +/-120 A operation.