MCM Electronics

Single Channel Power Supply - 60 Volts 20 Amp 420W Power Rating By Aim-TTI Instruments (CPX400S) MCM Part #72-12550

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The CPX400SP is a single output version of the best selling CPX400D.

The ultra-compact design (quarter rack 3U) takes up minimum space for bench or system use.

PowerFlex regulation enables the 420 watts of power to be configured to suit each specific application. See the power curve below for more information.

Specifications Top

Analog controls with digital stability
As technology has changed, many products have moved from analog controls to digital ones. Although digital controls suit many instruments, they do not necessarily suit a bench power supply.

Customer research shows that many users prefer the speed and simplicity of conventional analog controls for setting voltage and current. Digital controls may offer greater precision, but often at the expense of ease-of-use. With this in mind, the CPX400 series retains the true analog controls of its predecessor.

The main disadvantage of analog controls is stability and security. The settings of analog potentiometers can drift over time. More importantly, the settings can be changed accidentally with potentially serious consequences. The CPX series now incorporates S-Lock. One press of the Lock button transfers control of voltage and current from the analog controls to internal digital circuitry. This offers not just complete security, but exceptional stability as well with each setting controlled by an instrumentation quality DAC.

Isolated voltage tracking for maximum flexibility
The two outputs of the CPX400D are completely independent and electrically isolated from each other.

With V-Track selected, the two outputs remain electrically isolated, but the voltage control of the Master output sets an identical voltage on the Slave output.

This enables the user to create two rails of either polarity and to reference them to different grounds if necessary (e.g. digital ground and analog ground). Alternatively the outputs can be wired in series or parallel to create a voltage capability up to 120V or a current capability up to 40A with the voltage set using a single control.

Independent and simultaneous output control
The Both On/Both Off button is in addition to the individual switches for each output, and allow both outputs to be turned on or off synchronously by a single button press.

Synchronous switching of the outputs is of increasing importance for circuitry which can be damaged if one voltage rail is present without the other.
Voltage Range 0V to 60V
Current Range 0A to 20A
Ripple & Noise Typically <3mV rms, <15mV pk-pk, (5mV rms max.) in CV mode
Load Regulation Voltage - <0·01% of maximum output for any load change within the PowerFlex envelope (remote sense connected); Current - <0·05% of maximum output for any load change within the PowerFlex envelope
Line Regulation Voltage - <0·01% of maximum output for a 10% line change; Current - <0·01% of maximum output for a 10% line change
Transient Response <250µs to within 50mV of setting for a 5% to 95% load change
Temp. Coefficient Typically <100ppm/°C
Part Numbers
MCM Part #:72-12550
Aim-TTI Instruments Part #:CPX400S
Package Specifications & Dimensions
Weight:11 lbs.
Warranty:90 days
Need to Return?
Length:10.5 in.
Width:10 in.
Height:21.25 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

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