What is the difference between a basic trickle charger and an on/off switched charger?
What will be an ideal response?
The on/switch charger is essentially a trickle charger with an automatic on/off switch. Instead of a continuous charge as with the trickle charger, the on/off charger senses when the battery voltage reaches a preset reference level (VREF1) corresponding to full charge or float charge and shuts off the current to the battery.
When the battery discharges down to a second preset level (VREF2), it turns the current to the battery back on.
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________: the change in saving with respect to a change in disposable income.
Fill in the blank(s) with the appropriate word(s).
The dimensions of a 9-m-high warehouse are shown in Figure P2.12. The windward and leeward wind pressure profiles in the long direction of the warehouse are also shown. Establish the wind forces based on the following information: basic wind speed = 40 m/s, wind exposure category = C, K d = 0.85, K zt = 1.0, G = 0.85, and C p = 0.8 for windward wall and ?0.2 for leeward wall. Use the K z values listed in Table 2.4. What is the total wind force acting in the long direction of the warehouse?
What device passes AC interference to ground and blocks DC voltage, and is used to control radio interference?
A) Capacitor B) Transistor C) Coil (inductor) D) Resistor
A device that can be significantly made more energy efficient by the addition of underground water carrying piping attached to the condenser is a ______________________
A. heat pump B. heat recovery chiller C. cooling tower D. ice storage system