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1. 发明专利

JPH05291903A 失效
公开(公告)号：JPH05291903A
公开(公告)日：1993-11-05
申请号：JP2834092
申请日：1992-02-14
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G04C3/027 , H03K5/13 , H03K5/133
摘要： PURPOSE:To drive a coil in a very efficient timing at all times and to prevent malfunction without being affected by an amplitude of an induced voltage. CONSTITUTION:When an induced voltage in a coil L1 exceeds a reference voltage Vr, an output is produced from a comparator circuit CM and a drive pulse is generated from a one-shot pulse generating circuit W2 with a prescribed time delay and the drive circuit T is active. An output is produced from a one-shot pulse generating circuit W3 for a time T3 from the stop of the production of the drive pulse and a gate circuit G1 is closed.

2. 发明专利

JPH0519116B2 失效
公开(公告)号：JPH0519116B2
公开(公告)日：1993-03-15
申请号：JP17016388
申请日：1988-07-08
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G04C3/027 , G04C3/10

3. 发明专利

JPH0421150B2 失效
公开(公告)号：JPH0421150B2
公开(公告)日：1992-04-08
申请号：JP5126287
申请日：1987-03-06
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G04C3/027 , G04C3/00 , G04C3/02 , G05D19/02

4. 发明专利

JPH0421149B2 失效
公开(公告)号：JPH0421149B2
公开(公告)日：1992-04-08
申请号：JP5126187
申请日：1987-03-06
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G04C3/027 , G04C3/00 , G04C3/02

5. 发明专利

JPH0234397B2 失效
公开(公告)号：JPH0234397B2
公开(公告)日：1990-08-02
申请号：JP22337582
申请日：1982-12-20
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G10K15/04

6. 发明专利

JPH0277677A ELECTROMAGNETIC DRIVING CIRCUIT 失效
公开(公告)号：JPH0277677A
公开(公告)日：1990-03-16
申请号：JP22942888
申请日：1988-09-13
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G04C3/027 , G04C3/10
摘要： PURPOSE:To obtain a circuit which can be easily accumulated and with which optimum driving time and driving timing can be constantly set by a method wherein pulse width and/or pulse generation timing corresponding to voltage of a reference voltage source is stored in a memory circuit in advance. CONSTITUTION:A memory circuit MR stores in advance pulse width data and/or pulse generation timing of a driving pulse for driving a coil LL according to reference voltage of a variable reference voltage source VR. A control circuit CT1 reads data according to the reference voltage of the reference voltage source VR from the memory circuit MR, and a comparator circuit CM generates an output when induced voltage of the coil LL exceeds the reference voltage. A pulse generation circuit PG generates a driving pulse according to the pulse width and/or the pulse generation timing read out from the circuit MR in response to generation of the output from the circuit CM, and a driving circuit DR operates with said driving pulse to flow driving current to the coil LL.

7. 发明专利

JPH0221293A ELECTROMAGNETIC DRIVING CIRCUIT 失效
公开(公告)号：JPH0221293A
公开(公告)日：1990-01-24
申请号：JP17016388
申请日：1988-07-08
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G04C3/027 , G04C3/10
摘要： PURPOSE:To stabilize a swinging of a pendulum by arranging a coil for detecting and driving a permanent magnet, a variable reference voltage source for generating a reference voltage and a comparator circuit which generates an output when an induced voltage of the coil exceeds the reference voltage. CONSTITUTION:When an induced voltage of a coil LL with a length (a) of an electromagnetically driving circuit exceeds a voltage Vn-1 of a reference voltage source, an output is produced from a comparator circuit CM and in response to the output, a pulse with a specified voltage value is generated for a specified period from a pulse generation circuit PG. Then, counts of a counting circuit CT turn to n+1 by a clock pulse while a reference voltage of the reference voltage source VR shifts to Vn+1. The magnitudes of the reference voltage and the induced voltage are compared and when that of the induced voltage is larger, the reference voltage is raised by one step. When it is smaller, the reference voltage is lowered by one step. Thus, a pendulum is driven on optimum driving conditions thereby stabilizing the swinging of the pendulum.

8. 发明专利

JPH0135312B2 失效
公开(公告)号：JPH0135312B2
公开(公告)日：1989-07-25
申请号：JP20929783
申请日：1983-11-08
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： H02J7/35 , G04C10/02 , H01L31/04 , H02J1/00 , H02J9/06

9. 发明专利

JPS63217289A ELECTROMAGNETIC DRIVING CIRCUIT 失效
公开(公告)号：JPS63217289A
公开(公告)日：1988-09-09
申请号：JP5126387
申请日：1987-03-06
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G04C3/00 , G04C3/02 , G04C3/027 , G04C3/06
摘要： PURPOSE:To drive a permanent magnet efficiently by driving a coil in response to the output of a comparing circuit when the induced voltage of the coil exceeds a reference voltage, and controlling the reference voltage according to the amplitude of the induced voltage. CONSTITUTION:When the induced voltage of the coil L1 exceeds the reference voltage Vr1, a pulse generating circuit PG generates a driving pulse (b) to turn on a transistor S, and a driving current flows to the coil L1. An FF circuit F, on the other hand, is set with the pulse (b) and a counter CT enters an up-mode and is triggered with the trailing edge of the pulse (b), so that the reference voltage rises to Vr2. Then when the induced voltage exceeds the voltage Vr2, the pulse (b) is generated as mentioned above and the reference voltage rises to Vr3; when the pulse (b) is generated even with the voltage Vr3, the reference voltage rises to Vr4. Then when the induced voltage does not exceed the voltage Vr4, the pulse (b) is not generated and a timer circuit TM is not reset. The circuit TM is generated an output a time T later and a one-shot pulse generating circuit W generates a pulse, so that the counter CT enters a down-mode.

10. 发明专利

JPS6324406A CONSTANT CURRENT CIRCUIT 失效
公开(公告)号：JPS6324406A
公开(公告)日：1988-02-01
申请号：JP16827386
申请日：1986-07-17
申请人： SEIKOSHA KK
发明人： AOKI HIROSHI
IPC分类号： G05F3/24
摘要： PURPOSE:To obtain a stable constant current characteristic by absorbing the change of an power source voltage with the second and fifth MOS transistors. CONSTITUTION:Since MOS transistors T3 and T2 are connected by a diode, the voltage between respective source gates is held the constant voltage of about 0.5V without depending upon the electric power source voltage. Since the gate voltage of a MOS transistor T6 is also held to an approximately constant voltage without depending upon the power source voltage, a source drain voltage is also held to the constant voltage of about 0.5V. Namely, since MOS transistors T2 and T5 exist, most of the change part of the power source voltage is displayed at the drain of the transistors T2 and T2 and at the source of the transistors T2 and T5, the influence of the change of the power source voltage is hardly displayed. Consequently, for a resistance R, the resistance with a small resistance value can be used, for transistors T2, T3, T5 and T6, the transistor with a short channel length is used, and even then, a stable constant current characteristic can be obtained.

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