7053 Precision Adjustable DC Power Supply0 pages

Time Electronics

7053 Precision Adjustable DC Power Supply Module
• Single output, 3 ranges: 56V/2A, 25V/4A, 56V/500mA
• 1mV setting resolution at all output voltages
• 1mV resolution at up to 56 volts
• 112W maximum output power
• Setting by direct numeric entry or spin wheel
• Multiple ranges for increased current flexibility
• Multiple non-volatile setting memories
• OVP and OCP trips with alarm output
• Selectable remote sense terminals
• Programmable version available - 7053P
PRECISION DC POWER SUPPLY
A DC linear power supply with high accuracy, resolution, stability and noise. Multiple output ranges provide increased
current capability at lower voltages. An advanced user interface gives superior control, combining speed with safety.
Voltage and current are controlled using instrumentation quality 16 bit DACs enabling voltages to be set to 1mV
resolution even at full output. The accuracy is sufficient for the 7053 to be used as a calibration source for some handheld DMMs.
FAST, SIMPLE AND SAFE TO USE
The user interface of the 7053 has been designed to provide rapid control whilst guarding against any possibility of
error. The 7053 provides both numeric and rotary control. Illuminated keys and display legends provide instant
confirmation of settings and status. Voltage and current setting can be performed in 2 ways.
Direct numeric entry: Settings can be made by direct numeric entry using the 0 to 9 keypad. Each new setting is
previewed on the display and must be confirmed with the OK key. Settings recalled from memory are similarly previewed
and confirmed. Numeric setting is very fast requiring only three key presses to set to 5 volts, for example, (V, 5, OK).
To set a more precise level such as 12.725 volts requires more key presses, but can still be done in seconds.
Incremental rotary control: For those preferring quasi-analogue control, or for applications where the voltage or
current must be gradually changed, the jog wheel is available. The wheel has a positive stepped action but can be
spun rapidly when required. Output voltage can be incremented or decremented in steps of 0.1V, 10mV or 1mV.
Current steps can be selected from 0.1A down to 0.1mA. The Jog function can be left permanently engaged or can be
disabled at the touch of a button.
Instant Limits view: The 7053’s has storage of up to 10 power supply sets-up in non-volatile memory. Upon mains
switch-off, the set-up of the 7053 is saved and is automatically restored at switch-on.
FLEXIBILITY
Switchable between the 3 ranges provides a higher current capability at lower voltages and increased current resolution
when needed.
LOW NOISE
True linear regulation with output ripple and noise below 0.35 mV in CV mode and down to 20µA in CI mode. Regulation
near the limit of measurement. Fast control loop giving exceptional dynamic performance and recovery.
PROTECTION
The 7053 provides fully adjustable over-voltage and over-current trips which can be used both as a fail-safe against
accidental mis-setting and as a protection against inappropriate load conditions. In addition to turning the output off,
a trip condition switches the rear panel alarm signal enabling other equipment to be controlled. For complete protection
of the power supply, the trip will also be operated by over-temperature or excess voltage on the sense terminals.
PROGRAMMABLE VERSION
The 7053P programmbale version enables full remote control via RS-232 or USB interfaces.

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