Glowing experiment by PWM driver -Reports

Glowing experiment by PWM driver

Reports
This page contains Japanese characters.
I made PWB (Print Wired Board) of PWM driver and chassis for it by my design. I did art work of the PWB and drawing of the chassis.

Glowing experiment

A glow plug made by OS, type of A-3 shows various glowing conditions while turning the trimmer. I used 5VDC power supply.

Specifications

Dimensions
Size	45 x 76mm (1.77 x 2.99")
Hole diameter	3.2mm (0.13")
Hole pitch	39 x 70mm (1.54 x 2.76")

Registered at JPO, No.3132951

Terminal

Vs ( power ) : input +3 to +15 VDC

COM ( GND ) : common or ground

SIG ( signal ) : external control input

Load
+ : positive
- : negative
Switch function

DIP
Circuit power on/off
LED current on/off for saving

Toggle : Load on/off

Jumper : Alternate external or internal control input
Dry contact
Voltage input
Electricity

Input high level : 3 to 16 VDC

Input signal current : negligible uA

Current consumption : 1 mA at 4.5V

PWM frequeny : 15 kHz
Trimmer Adjust equivalent constant current
Weight 30g ( 1.1oz )

Application

There are 4 principal applications how to use the driver.

Fig.1 shows DC motor on/off control. PS is Power Supply.
Fig.2 shows how to enlarge lower limit of engine rotation speed by glowing.
Fig.3 shows an example for UAV or something. It is able to improve fuel comsumption by synchronized ignition signal in very lean condition.
Fig.4 shows an example of a scale aircraft to have an internal starter to crank in remote operation.

Chassis

Chassis example

Chassis

The PWM driver board attaches a shassis of a Aluminum sheet of 0.8mm thick. The shassis hastwo female M3 threads for binding. It weighs 15g ( 0.53oz ) including a rubber bush, also weighs screws 5g ( 0.18oz ) and so on.

Distribution

I would like to distribute it across the Pacific Ocean. Please inform me, if you are interested. Thank you.

The following includes Japanese characters.