28176 Parallax Inc, 28176 Datasheet - Page 156
![KIT PARTS PROCESS CONTROL W/TEXT](/photos/8/99/89989/mfg_28176_sml.jpg)
28176
Manufacturer Part Number
28176
Description
KIT PARTS PROCESS CONTROL W/TEXT
Manufacturer
Parallax Inc
Datasheet
1.122-28176.pdf
(330 pages)
Specifications of 28176
Accessory Type
Process Control
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
BASIC Stamp® 2 and Board of Education
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
- Current page: 156 of 330
- Download datasheet (11Mb)
As seen in Figure 5-8, a 100% drive, or duty cycle, is applied, and a sample of RPM is
taken. The %Duty and %RPM are plotted (and updated in the gauges). Next, a 95% duty
cycle is applied and RPM sampled.
Note that the digital trace shows the switching of the fan. Figure 5-8 is a close-up of the
switching. What happens to the HIGH time as the drive is decreased?
Does the fan produce a linear change in speed in relation to the drive? As we can clearly
see, it does not. However, this isn't the circuit's fault. It's a problem with the code in that
the fan is not provided a very clean duty cycle. Trying to switch the drive output on and
Figure 5-7 PWM Test with Manual Drive
Figure 5-8 PWM Drive Cycling
Related parts for 28176
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![30008](/images/manufacturer_photos/0/5/515/parallax_inc_tmb.jpg)
Part Number:
Description:
Microcontroller Modules & Accessories DISCONTINUED BY PARALLAX
Manufacturer:
Parallax Inc
![70009](/photos/26/92/269208/70009-l_tmb.jpg)
Part Number:
Description:
BOOK UNDERSTANDING SIGNALS
Manufacturer:
Parallax Inc
Datasheet:
![27404](/photos/26/91/269197/27404-l_tmb.jpg)
Part Number:
Description:
COMPETITION RING FOR SUMOBOT
Manufacturer:
Parallax Inc
Datasheet:
![70016](/photos/8/99/89966/mfg_70016_tmb.jpg)
Part Number:
Description:
TEXT INFRARED REMOTE FOR BOE-BOT
Manufacturer:
Parallax Inc
Datasheet:
![28135](/images/manufacturer_photos/0/5/515/parallax_inc_tmb.jpg)
Part Number:
Description:
BOARD EXPERIMENT+LCD NX-1000
Manufacturer:
Parallax Inc
Datasheet:
![28023](/photos/9/30/93020/mfg_28023_tmb.jpg)
Part Number:
Description:
CONTROLLER 16SERVO MOTOR CONTROL
Manufacturer:
Parallax Inc
Datasheet:
![30010](/photos/9/30/93025/mfg_30010_tmb.jpg)
Part Number:
Description:
BASIC STAMP LOGIC ANALYZER
Manufacturer:
Parallax Inc
Datasheet:
![SX18AC/SO](/images/manufacturer_photos/0/5/515/parallax_inc_tmb.jpg)
Part Number:
Description:
IC MCU 2K FLASH 50MHZ SO-18
Manufacturer:
Parallax Inc
Datasheet: