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Is my shematics good ?

Hi there !

I have the project to make a trash compactor. To do this i have a truck wiper motor http://ncr.en.alibaba.com/product/319740439-215097357/180W_Bus_wiper_motor_EMI_EMC_Volvo_bus_wiper_motor_12_24V_NCR_8385_.html ( 180W 24V 30A ) and a worm screw sytem.

To control this motor, i've made a H bridge with this transistors https://www.sparkfun.com/products/10213

To control the intensity consumed by the motor and prevent it from burning, i use a current sensing chip http://http://www.evselectro.com/kits-30a-range-acs712t-elc-30a-module-current-sensor-module-3024

To control all of that, i use ATTiny 84.

My power suplly is 24V 30A and my µC ( The ATTiny 84 ) use 5v suply so i have to convert a part of the 24V to 5V. To do that i use 7805 but i think it will burn or i will lose lot of energy.

I've made the shematics of my circuit and i wonder if it's good or not and what can i change.

PS: The two switch in the schematics are end positio sensor.

Thank :D and sorry for my bad english :/

Picture of Is my shematics good ?
These are 79 watt N channel mosfets

A push pull bridge circuit can be built with just the one type of transistor or mosfet but if I read this schematic right, not this one.`

If you are going to use dots for connections use dots on all connections please.

If you are going to use jumps for crossing wires use jumps on all crossing wires please.

If you don’t use one standard in a schematic it makes the schematic hard to read.

I would be more concerned with 79 watt mosfets and a 180 watt motor, but you can parallel the mosfets to compensate for that.

One link didn’t work for me.

And would someone please post a published book with H Bridge in it because every textbook and manual I have or can find say bridge network.

And some of the books I have cost more than the average person makes in a month.

Joe
rickharris3 years ago
You need to mark the transistors to show which are PNP and which are NPN so we can see you have them the right way round.
Their N channel mosfets Rick

A push pull bridge circuit can be built with just the one type of transistor or mosfet but if I read this schematic right, not this one.