Ramsey Electronics COMPUTEMP CT255 Manual 

12, CT255 • 12 You may notice though that the smallest step in this case is 1/256. This 8 bit DSP is unable to accurately represent this number smaller than 3.906E-3. Most fixed points DSPs however are 16 bit, 24 and 32 bits. 24 bits of resolution means the smallest number we can represent beco…

18, CT255 • 18 installed). Since a diode will only conduct when it is forward biased, this diode acts as a “reverse voltage” protection circuit. Diodes are often used as “one-way switches” in this manner to protect internal circuitry.  3. Identify C8, the 470 uF electrolytic ca…

27, CT255 • 27 The Ramsey Kit Warranty Please read carefully BEFORE calling or writing in about your kit. Most problems can be solved without contacting the factory. Notice that this is not a "fine print" warranty. We want you to understand your rights and ours too! All R…

3, Ramsey Electronics COMPUTEMP CT255 CT255 • 3 COMPUTEMP 255 BINARY THERMOMETER KIT Ramsey Publication No. MCT255 Price $5.00 TABLE OF CONTENTS Introduction ...................................... 4 Circuit Description ............................ 5 Schematic Diagram .......................... 13 Parts …

8, CT255 • 8 How the counter oscillator works U1:D is set up as a simple oscillator to generate our clock pulses that drive the ripple counter. When the comparator U1:B output is low, this circuit will run normally, generating pulses for our counter. When the U1:B comparator output is high, the…

9, CT255 • 9 to add 32. We do this by switching in R22 into the circuit, which combined with R23 adds in the 32 offset that we need. The problem however is this acts like a voltage divider on the output of U1:A our scaling amplifier, so now we have to adjust the non-inverting amplif…