Input Connections, Output Connections, Current Ratings

Installation - 3

Input Connections

Connect the Power Cord

1.Unscrew the line fuse cap from the rear panel and verify that the fuse rating matches what is specified on the FUSES label on the rear panel. Reinstall the fuse. (See table 3-1 for fuse part numbers.)

2.Connect the power cord to the IEC 320 connector on the rear of the unit. If the wrong power cord was shipped with your unit, contact your nearest HP Sales and Support Office (refer to the list at the back of this guide) to obtain the correct cord.

Output Connections

The output terminal block has connections for the + and − output, the + and − sense inputs, and an earth ground terminal. The terminal block screws are 6-32 X 3/8 inch. Remove the safety cover by inserting a flat bladed screwdriver in the opening on the left side of the cover and pushing the locking tab to the left. This will release the cover.

Optional front panel binding posts are available to connect load wires for bench operation. The front panel binding posts are paralleled with the rear panel + and − connections. Before using the front panel binding posts, make sure that the output terminals are jumpered for local sensing.

NOTE: Front panel binding posts are provided for convenience. Only the rear panel terminals are optimized for noise, regulation, and transient response as documented in Appendix A.

Wire Considerations

To minimize the possibility of instability on the output,

♦keep load leads as short as possible

♦bundle or twist the leads tightly together to minimize inductance

Current Ratings

Fire Hazard To satisfy safety requirements, load wires must be large enough not to overheat when carrying the maximum short-circuit current of the dc source. If there is more than one load, then any pair of load wires must be capable of safely carrying the full-rated current of the dc source.

The following table lists the characteristics of AWG (American Wire Gage) copper wire.

Table 3-2. Ampacity and Resistance of Stranded Copper Conductors

AWG No.	Ampacity (in free air)	Resistance (at 20 deg. C)
		Ω /m	Ω /ft
20	8.33	0.0345	0.01054
18	15.4	0.0217	0.00663
16	19.4	0.0137	0.00417
14	31.2	0.0086	0.00262
12	40	0.0054	0.00165

6631B, 6633B, 6634B, 6632B specifications

The HP 6632B, 6634B, 6612B, and 6633B are high-performance programmable power supplies that have gained prominence in various testing and measurement applications. These models are part of the HP 6000 series, which is renowned for its reliability and versatility in providing precision power supply solutions.

The HP 6632B offers a dual-output capability, delivering up to 32 volts and 3 amps per channel. It is designed for applications requiring stable and accurate voltage and current supplies. With features like overvoltage protection and short-circuit protection, it ensures the safety of both the device under test and the power supply itself. The programmable voltage and current settings allow operators to automate their testing procedures, increasing efficiency.

The HP 6634B takes performance a step further with multiple outputs, providing up to 32 volts and 5 amps per channel. This model is particularly suited for applications requiring higher current, especially in battery testing and device characterization. The ability to program the device remotely adds an extra layer of usability, making it ideal for integration into automated testing environments.

The HP 6612B model is tailored for users who require a compact and portable power supply solution. It delivers up to 20 volts and 2 amps. Despite its smaller size, it retains essential features like programmable settings and fast transient response, making it suitable for both educational purposes and field testing scenarios.

For users looking for a versatile, multi-channel solution, the HP 6633B presents itself as an excellent choice. This model offers up to 32 volts and 5 amps across multiple outputs. It supports a wide range of programmable features and has an intuitive interface, making it user-friendly for both beginners and experienced engineers. The robust design of the 6633B ensures reliable performance in demanding environments.

All four models utilize advanced linear power supply technology that minimizes ripple and noise, which is critical for sensitive electronic components. Together, these power supplies provide professionals in research, manufacturing, and testing with the precision they need for their experiments and product developments. The combination of programmability, safety features, and high-performance specifications makes the HP 6632B, 6634B, 6612B, and 6633B essential tools for electronic engineers and technicians.