Toshiba Photorelay TLP3547 Trial

zhangjsh

Toshiba Photorelay TLP3547 Trial [Copy link]

 

 Yesterday I received the "Toshiba Photorelay TLP3547 Mechanical Relay Replacement Evaluation Kit" from Electronic Engineering. When I opened the package, I saw a mysterious small box When I opened the box, I found a small thing wrapped tightly After opening it, a beautiful small relay evaluation board was revealed The back of the relay evaluation board, on the PCB you can see the 1.5K current limiting resistor R1 Its size is compared with the comparison group of mechanical relays A close-up of the top of the comparison mechanical relay Today I will show you the basic appearance pictures first, and then I will prepare the test equipment to further complete the test and evaluation tasks

dcexpert

There is a resistor on the back?

fsyicheng

I feel the craftsmanship needs to be improved

fsyicheng

I have applied, but I don’t know if it was approved.

littleshrimp

When did Japanese products become so low quality?

qwqwqw2088

High-capacity VOFF 60V/ION5A photorelay is not made with the traditional Japanese exquisite workmanship.

zhangjsh

dcexpert posted on 2018-8-28 21:04 Is there a resistor on the back?

The 1.5K resistor on the back is the input current limiting resistor

kejoy

The back side really looks unharmonious. Was this review board made by EE?

zhangjsh

kejoy posted on 2018-9-3 19:57 The back is really, it looks discordant. Is this evaluation board made by EE?

There is another problem: the bottom plate pins do not match the universal breadboard sockets, making the experiment difficult. I plan to remove the bottom plate for the experiment.

nmg

kejoy posted on 2018-9-3 19:57 The back is really, it looks discordant. Is this review board made by EE~~~

Don't take the blame

nmg

zhangjsh posted on 2018-9-5 20:47 There is still a problem: the bottom plate pins do not match the universal breadboard sockets, making the experiment difficult. I plan to remove the bottom plate for the experiment

I hope to overcome the difficulties and continue your evaluation content. The evaluation deadline is October 13

zhangjsh

nmg posted on 2018-9-13 10:35 I look forward to overcoming difficulties and continuing your evaluation content. The evaluation deadline is October 13

I am currently trying it out. Suddenly, I had an idea and changed my mind to complete this trial report. The purpose is to use the simple equipment available in the hands of amateurs to complete the test. The experimental report will be completed in the next few days.

zhangjsh

No-load on-off test and comparison with the reference group The main purpose of this experiment is to test the fast on-off performance of the TLP3547 experimental module and compare the on-off delay difference with the control group of mechanical relays. Experiment 1. Tick test source composed of a single-chip microcomputer: The Arduino UNO3 development board is used to form a driving source with an adjustable time constant, and outputs two sets of parallel driving signals. 2. Drive the LED light to emit light 3. Frequency range: 50mS for power on and 10mS for commutation Set pins 9 and 10 as driving pins respectively, driving the TLP3547 experimental module and the FujiRB104-DY relay of the comparison group respectively. The program is as follows: int aPin =10; int bPin =9; void setup() { pinMode (aPin,OUTPUT); pinMode (bPin,OUTPUT); } void loop(){ digitalWrite(aPin,HIGH); delay(50); digitalWrite(aPin,LOW); delay(10); digitalWrite(bPin,HIGH); delay(50); digitalWrite(bPin,LOW); delay(10); } See the video for the effect

Load test

The main purpose of this experiment is:

• Test the DS voltage drop at the output end of the MOSFET of the TLP3547 experimental module under load. Module surface temperature 3.1 Test plan: The module is connected to the switching power supply via a 5.4Ω power resistor. The UT207 digital clamp meter is used to monitor the loop current, and the DMM2650 4.5-digit multimeter is used to monitor the module output voltage. 3.2 Test time: 30 minutes after power on, use UT300A infrared temperature gun to test the surface temperature of TLP3547.
  The test data are as follows:

Group	Supply voltage	Current	Module voltage drop	Reduced internal resistance	Surface temperature
5V	5.094V	0.94A	21.63mV	23.01mΩ	25.4℃
12V	12.106V	2.13A	[align= center]52.26mV	24.53mΩ	28.7℃

Experimental conclusion:

The experiment shows that the internal resistance of this module is close to the typical data of the product samples provided by Toshiba,2A load

The surface temperature rise is low and the operation is stable after long-term operation.

The use of mechanical relays often leads to a lot of wear and tear, but using photorelays, we can solve this problem. Photorelays are maintenance-free solutions, with no mechanical contact and wear, providing longer service life and higher reliability.

Therefore, I think it is possible to replace mechanical relays with the same performance in batches.

Consider replacing them in batches gradually when upgrading products.

zhangjsh

Why did the reply I just posted get lost?

zhangjsh

Experimental equipment: TLP3547 experimental module; UT207 digital clamp meter; DMM2650 4.5-digit multimeter; one 5V and one 12V switching power supply; Arduino UNO3 development board; UT300A infrared temperature gun; Fuji RB104-DY relay

[attach]380 728[/attach]

[attach]380 729[/attach]

Toshiba relay test steps: No-load on-off test and comparison with the reference group The main purpose of this experiment is to test the fast on-off performance of the TLP3547 experimental module and compare the on-off delay difference with the comparison group of mechanical relays. The experiment is composed of a single-chip microcomputer. Tick test source: The Arduino UNO3 development board is used to form a driving source with an adjustable time constant, which outputs two sets of parallel driving signals. The frequency range of driving LED lamp is as follows:

The program is as follows:

int aPin =10; int bPin =9;

void setup() { pinMode (aPin,OUTPUT); pinMode (bPin,OUTPUT); }

void loop(){ digitalWrite(aPin,HIGH); delay(50); digitalWrite(aPin,LOW); delay(10); digitalWrite(bPin,HIGH); delay(50); digitalWrite(bPin,LOW); delay(10); }

[s ize=4]Video effect:

[s ize=12pt][url=http://v.youku.com/v_show/id_XMzg0NTM1MTExNg==.html?spm=a2hzp.8 244740.0.0http://v.youku.com/v_show/id_XMzg0NTM1MTExNg==.html?spm=a2hzp.8244740.0.0[media=x,500,375]http://v.youku.com/v_show/id_XMzg0NTM1MTExNg==.html?spm=a2hzp.8244740.0.0[/media[/url]]

Load test The main purpose of this experiment is to test the DS voltage drop at the MOSFET output of the TLP3547 experimental module under load. Module surface temperature test plan: The module is connected to the switching power supply through a 5.4Ω power resistor, and the UT207 digital clamp meter is used to monitor the loop current, and the DMM2650 four-and-a-half-digit multimeter is used to monitor the module output voltage. Test time: After 30 minutes of connection time, use the UT300A infrared temperature gun to test the surface temperature of the TLP3547. The test data are as follows:

Group	Supply voltage	Current	Module voltage drop	Reduced internal resistance	Surface temperature
5V	5.094V	0.94A	21.63mV	23.01mΩ	25.4℃
12V	12.106V	2.13A	[align= center]52.26mV	24.53mΩ	28.7℃

Experimental conclusion:

The experiment shows that the internal resistance of this module is close to the typical data of the product samples provided by Toshiba,2AThe surface temperature rise is low and the operation is stable after long-term operation.

The use of mechanical relays often leads to a lot of wear and tear, but using photorelays, we can solve this problem. Photorelays are maintenance-free solutions, with no mechanical contact and wear, providing longer service life and higher reliability.

Thus, they can be used in batches to replace mechanical relays with the same performance.

Consider gradual batch replacement when upgrading products.