Switched Mode Control 

The Switched Mode Controllers offered by Corrosion Electronics operate from a DC voltage source that can range from 10-30VDC. However, because our DC-DC converters are of a step down nature the output voltage cannot exceed the input voltage.

The controllers themselves are capable of output voltages of up to 25 VDC and output currents of up to 10 ADC. The high efficiency offered by switch-mode control makes it a perfect choice for systems driven from batteries.

To the left you will find an illustration of wha t our typical front panel arrangement looks like. The typical switched mode controller features 3 switch selectable modes of control:

	Voltage Control
	Current Control
	Auto Control (Potential control)

Adjusting the output can be acheived by turning a multiturn lockable counting dial until desired set point is reached.  

Switched mode controllers are available as one of two basic types, common positive or common negative. The common positive controller is suited to pipeline CP where a common anode bed may be shared by more than one controller operating from a shared DC source. The common negative controller is suited to applications where the structure is common to multiple controllers operating from a shared DC source.

FEATURES:

	10A / 25V maximum output
	Constant Volts/Amps/Ref Potential
	10 turn main set point with calibrated counting dial
	Independent over-riding current and voltage limit set point - user settable
	Limit LED Indicator
	Output control range from tens of milliamps to full output.
	Soft start on power up and after interruption
	Optional "Interrupt Freeze" to promote smooth transistion from
	OFF to ON  - suits DCVG surveys on pieplines
	Optional remote control
	Modular design favours field maintanance

ASSEMBLED PRE WIRED UNITS:

Please contact our sales office for information on our range of "ready to go" systems. Options include:

	Mains powered c/w circuit breaker
	DC Powered (12V or 24V)
	Power input lightning surge protection
	Surface mounted module available as:
	-  SM525PA (Analog Meter, Reference test jack)
	-  SM525PD (Digital Meter for Volts/Amps/Ref)
	REFP1 rail mounted STR/REF surge protection
	DCMOV-5A rail mounted DC Output surge protection
	Rail Mounted terminals for:
	-  Power Input
	-  DC Output +ve and -ve
	-  Str/Ref inputs
	-  External clean contacts for Interruption