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1725672 Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers |
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1725672 Datasheet(HTML) 4 Page - List of Unclassifed Manufacturers |
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4 / 8 page  CONFIGURATION The terminal block at the bottom-left of the board (solder or screw terminals) provides the regulated output and other signals from the EHE004. The connections from left to right are: GND – Electrical ground VOUT – Regulated output voltage VCAP – Test point for measuring the voltage across the input capacitor(s). Additional capacitance can be added between this terminal & GND as needed. PGOOD – Active-high Power Good signal. This signal will be high (true) when the output is in regulation and will go low (false) when the output voltage drops below 92% of its regulated value. This will typically occur once the input voltage falls below the UVLO threshold or if the maximum output current is exceeded. In addition, a low-voltage auxiliary power source, such as a solar cell, can be added by soldering to the AUX+ and AUX- pads at the bottom-left corner of the board, provided the source complies with the absolute maximum ratings set forth above (VAC ≤18V, RSOURCE >400OHMS, SW3=SUPERSERIES). A blocking diode (400mV typical voltage drop) in series with the AUX input prevents reverse leakage across the device. 4 REVISION N0. 002 REVISION DATE: 01-23-2013 Switch #1 (SW1) – Piezo Connection SERIES – SWITCH UP PARALLEL – SWITCH DOWN OUTPUT VOLTAGE SWITCH #2 LEFT & RIGHT 00 = 1.8V = UP UP 10 = 3.3V = DOWN UP 01 = 2.5V = UP DOWN 11 = 3.6V = DOWN DOWN Switch #2 (SW2) – DC Output Setting SWITCH UP FIRST DECIMAL BECOMES = 00 SWITCH DOWN FIRST DECIMAL BECOMES = 10 SWITCH UP SECOND DECIMAL BECOMES = 00 SWITCH DOWN SECOND DECIMAL BECOMES = 01 Switch #3 (SW3) – Rectification Method SUPERSERIES – SWITCH UP NORMAL – SWITCH DOWN CONNECTION INFORMATION How do I configure the EHE 004? Configuring the EHE004 is done by using the combination of switches which appear on the top side of the board. The switch at the top right, designated SW3, controls the bridge rectifier connection. Place in the “NORM” position (downward) for normal operation, and the “SS” position for half-wave (“superseries”) operation. The switch in the lower right hand side, SW1, switches between parallel (downward, “Par.” position) and series (upward, “Ser.” position) piezo connection. The switch located in the top left hand corner of the board, designated SW2, sets the output voltage as marked below. In the legend below, the left and right digit refer to the left and right toggle switch, respectively, and the “1” or ON position is toward the dot marked on the switch. EHE004 |
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