Description
A VCO or PLL reacts to every microvolt on its tuning line. The Keysight B2961C power source is a one-channel, low-noise supply for exactly that kind of circuit. Lost in HCM lists it for rental and sale in Vietnam, so you can try it on one project first.
Keysight B2961C power source key figures
The output reaches 210 V and 3 A DC, or 10.5 A in pulses. Maximum power is 32 W, and resolution is 6.5 digits. Noise is the headline spec. The source lists 10 microvolts RMS of voltage noise, and an external filter lowers it further.
| Item | Value |
|---|---|
| Outputs | 1 |
| Maximum voltage | 210 V |
| Maximum current | 3 A DC / 10.5 A pulse |
| Maximum power | 32 W |
| Resolution | 6.5 digits |
| Voltage noise | 10 microvolts RMS, lower with external filter |
Four-quadrant output with arbitrary waveforms
Bipolar four-quadrant operation means the unit can source or sink voltage and current precisely. In addition, arbitrary waveform generation lets you define your own output profile. Remote sense and list mode then help when a fixture drops voltage or a sequence must run unattended. A graphical interface keeps manual bench work simple, while the same functions support automated setups.
Circuits that need a quiet supply
Typical jobs include VCO, PLL and RF component characterization. ADC and DAC evaluation fits too, because converter results shift when the reference or supply carries noise. Sensor and low-noise analog circuit testing is another match, and so is semiconductor and materials research. For example, a lab can bias an oscillator, then log how its phase noise changes with the supply.
Plan the filter, leads and fixture
The product photo shows a benchtop unit with carry handles. Its front panel has a display, a keypad, a rotary knob and Sense, Force and Guard terminals. Those terminals hint at the accessories to think about. Filters, cables, fixtures and remote-sense accessories depend on the configuration, so list each one in the quote.
Rent a quiet source, or own one
Rent when a single characterization study needs low noise for a few weeks. Buy when oscillator or converter work fills the calendar. Either way, request a quote from Lost in HCM for the Keysight B2961C power source. State your voltage, current, pulse, noise, waveform, filtering and fixture needs. More instruments sit in the power supplies category, the brand site is keysight.com, and you can contact SMK Vietnam with questions.
B2961C questions
Is the external low-noise filter included?
Not automatically. Filters, cables, fixtures and remote-sense accessories depend on the configuration, so ask for each one by name.
How high can the pulse current go?
It reaches 10.5 A in pulses, against 3 A for continuous DC.
What does four-quadrant mean in practice?
The output can both supply and absorb power, so it handles sourcing and sinking tests on one channel.
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