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<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">As our technology moves fwd. with more & more engineering level options; at times I feel ignorant & lost.  I went online to try to understand these
 options.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">Is this an accurate explanation? Yes, it is true I am a grey-haired RE dinosaur</span><span style="font-size:14.0pt;font-family:Wingdings;mso-ligatures:none">J</span><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">Does anyone have additional explanations /definitions that are relevant to in particular LI batteries & associated BMS controls?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">__________________________________________________________________<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">An open-loop system operates on a pre-set input without using the output to make corrections, resulting in a simple, low-cost design but poor accuracy
 and adaptability to changing conditions. In contrast, a closed-loop system uses feedback to continuously compare the actual output to a desired output, making real-time adjustments to maintain accuracy and compensate for disturbances, though it is more complex
 and costly. <br>
 <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">Open-Loop Systems (Non-Feedback Systems)
<o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo1">
<b><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">How it works:</span></b><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">
<o:p></o:p></span></li></ul>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">The system's control action is independent of the system's output. Once an input is given, the system operates without measuring or considering the result. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">   
<b>Characteristics:</b> <o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l6 level1 lfo2">
<span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">Simple, straightforward design. <o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">    Low cost and easy to implement. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">    Operates more swiftly due to the absence of feedback processing. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">    Immune to feedback-related issues. <o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l3 level1 lfo3">
<span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"> 
<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"> 
<b>Examples:</b> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">A hand dryer that runs for a set time regardless of whether hands are dry, a toaster that heats for a fixed duration, or a simple electric mixer. <o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo4">
<span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"><o:p> </o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">Closed-Loop Systems (Feedback Control Systems)
<o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo5">
<b><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">How it works:</span></b><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">
<o:p></o:p></span></li></ul>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">The system's output is measured and fed back to the controller, which compares it to the desired setpoint. The controller then makes adjustments to the input to minimize
 the error between the actual and desired output. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">   
<b>Characteristics:</b> <o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo6">
<span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">Self-regulating and self-correcting. <o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">    High accuracy and adaptability to changing conditions. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">    Requires additional components like sensors and control algorithms, leading to increased complexity and cost. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">    May experience a slight delay due to the feedback loop. <o:p></o:p></span></p>
<ul type="disc">
<li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l4 level1 lfo7">
<span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"> 
<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none"> 
<b>Examples:</b> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif;mso-ligatures:none">An automatic cruise control system that adjusts engine power to maintain a set speed, or a thermostat that turns the heater on or off to reach a desired
 temperature. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Century Gothic",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif">_________________________________________________________<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#275317">Dana Orzel                </span><span style="font-family:"Century Gothic",sans-serif;color:#275317">GREAT SOLAR WORKS!                      <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#275317">C – 208.721.7003      E –
<a href="mailto:dana@solarwork.com"><span style="color:#275317;text-decoration:none">dana@solarwork.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic",sans-serif;color:#275317">W - www. greatsolarworks.com     <a href="http://www.solarwork.com/"><span style="color:#275317;text-decoration:none">www.solarwork.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><i><u><span style="font-family:"Century Gothic",sans-serif;color:#275317">“Responsible Technologies for Responsible People since 1988!”<o:p></o:p></span></u></i></p>
<p class="MsoNormal"><o:p> </o:p></p>
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