How did the us constitution set up a strong, but not tyrannical government?

It created a system in which power and responsibility were shared in a balanced way. They created a Representative Government, in which elected officials vote on government matters and a Federal System, Where power is shared between state and central government.

By using the 7 principals if government:
1. Popular sovereignty
2. Republicanism
3. Federalism
4. Separation of Powers
5. Limited Government
6. Checks and Balences
7. Individual Rights