Actuator driving apparatus

• US 20050259482A1
• Filed: 04/25/2005
• Published: 11/24/2005
• Est. Priority Date: 05/21/2004
• Status: Active Grant

• Current Assignee: Keihin Corporation (Hitachi, Ltd.)
• Original Assignee: Keihin Corporation (Hitachi, Ltd.)
• Inventors: Yoshimura, Kenichi, Hourai, Yasuhau
• Granted Patent: US 7,312,972 B2
• Time in Patent Office: Days
• US Class Current: 365/189.60
• CPC Class Codes: B60K 5/12 Arrangement of engine supports supports comprising both a plastic spring and a fluid damper F16F13/06
• CPC Class Codes: F02D 2041/201 by using a boost inductance
• CPC Class Codes: H02M 3/155 using semiconductor devices only

Abstract

An actuator driving circuit for driving an electromagnetic actuator, includes a boosting circuit which boosts a source voltage, and a boosted voltage controller which is connected to an output terminal of the boosting circuit, i.e., the downstream of the boosting circuit, to control a boosted voltage generated by the boosting circuit.

Claims

1. An actuator driving circuit for driving an electromagnetic actuator, comprising a boosting circuit which boosts a source voltage, and a boosted voltage controller which is connected to an output terminal of said boosting circuit to control a boosted voltage generated by said boosting circuit.

2. An actuator driving circuit as claimed in claim 1, further comprising a voltage dividing circuit which is connected to an output terminal of said boosting circuit to divide said boosted voltage generated by said boosting circuit, and a booster IC which monitors a divided voltage generated by said voltage dividing circuit, wherein said boosted voltage controller is provided between said output terminal of said boosting circuit and an input terminal of said booster IC.

3. An actuator driving apparatus as claimed in claim 1, wherein said boosted voltage controller is formed of a resistor and a switch.