Constant Current CC Tests, CC Setup | Agilent Technologies 6634B

2 - Verification and Performance Tests

Transient Recovery Time

This test measures the time for the output voltage to recover to within the specified value following a 50% change in the load current.

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Loading Transient

v		t
	t	v
	t
	Unloading

Transient

Figure 2-2. Transient Waveform

a.Turn off the supply and connect the output as in Figure 2-1a with the oscilloscope across the +S and the -S terminals.

b.Turn on the supply and program the output voltage to the full-scale value and the current to the maximum programmable value.

c.Set the load to the Constant Current mode and program the load current to 1/2 the power supply full-scale rated current.

d.Set the electronic load's transient generator frequency to 100 Hz and its duty cycle to 50%.

e.Program the load's transient current level to the supply's full-scale current value and turn the transient generator on.

f.Adjust the oscilloscope for a waveform similar to that in Figure 2-2.

g.The output voltage should return to within the specified voltage (v) in less than the specified time (t). Check both loading and unloading transients by triggering on the positive and negative slope.

Constant Current (CC) Tests

CC Setup

Follow the general setup instructions in the Measurement Techniques paragraph and the specific instructions given in the following paragraphs.

Current Programming and Readback Accuracy

This test verifies that the current programming and readback are within specification.

a.Turn off the supply and connect the current monitoring resistor across the power supply output and the DVM across the resistor as shown in Figure 2-1a. See "Current Monitoring Resistor" for connection information.

b.Turn on the supply and program the output voltage to 5 V and the current to zero.

c.Divide the voltage drop (DVM reading) across the current monitoring resistor by its resistance to convert to amps and record this value (Iout). The reading should be within the limits specified in the performance test record card for the appropriate model under CC PROGRAMMING @ 0 AMPS.

d.Set the current readback range to High and program the output current to 20mA. For model 66332A, set the current detect mode to “DC”. Repeat step C to get the Iout. Record the current reading on the front panel display. The reading should be within the limits specified in the performance test record card for the appropriate model under Current Readback Accuracy @ 20mA (High Range).

6632B, 6633B, 66332A, 6634B specifications

Agilent Technologies, a leader in electronic test and measurement solutions, offers a range of power supplies designed to meet various application needs. Notable models include the 6632B, 6634B, 66332A, 6633B, and 6612C. Each of these units provides unique features and technologies that cater to researchers, engineers, and technicians in the industry.

The Agilent 6632B is a single-output DC power supply that delivers up to 30V and 3A. It is known for its excellent load regulation and low noise, making it ideal for sensitive electronic testing. The model includes built-in voltage and current measurement capabilities, allowing users to monitor output conditions in real time. The 6632B is commonly used in laboratory environments, educational institutions, and manufacturing lines.

Moving to the 6634B, this model offers dual-output capabilities with a maximum output of 30V and 6A. This versatility enables simultaneous powering of two different devices or circuit sections. It also features parallel and series operation options, allowing users to create a custom power supply configuration for specific applications. With a programmable interface, the 6634B simplifies test automation, ensuring efficiency in extensive testing scenarios.

The Agilent 66332A stands out with its precision and high performance. This power supply provides three outputs—two programmable and one fixed—yielding flexible power configurations. Its intuitive user interface allows easy adjustment of voltage and current settings. The device is equipped with extensive protection features to safeguard both the power supply and the connected load against faults. It is an excellent choice for complex testing setups that require reliable power.

The 6633B model offers a high-performance power supply with dual outputs, similar to the 6634B but with enhanced specifications. It can provide up to 40V and 2A per channel, delivering precision for demanding applications. This model is particularly suited for industries focused on high-reliability applications, such as telecommunications and aerospace.

Lastly, the Agilent 6612C is a compact and lightweight power supply providing single-output up to 60V and 2A. This model is designed for simplicity and ease of use, making it an excellent choice for portable applications. The 6612C’s unique characteristics include a compact design and user-friendly controls, which facilitate operation in field settings.

In summary, Agilent Technologies’ power supply models—6632B, 6634B, 66332A, 6633B, and 6612C—offer an array of features that cater to a wide range of testing and research needs, ensuring reliable power delivery in various contexts.

Agilent Technologies 6634B, 66332A Constant Current CC Tests, Transient Recovery Time, CC Setup

Models: 6632B 6633B 66332A 6634B